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Contents
- The climate of Juana Díaz
- The best time to visit Juana Díaz
- The worst time to visit Juana Díaz
- Spring weather in Juana Díaz
- Summer weather in Juana Díaz
- Autumn weather in Juana Díaz
- Winter weather in Juana Díaz
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Juana Díaz
Draped in the Am, or tropical monsoon, Köppen climate classification, Juana Díaz in Puerto Rico boasts year-round warm temperatures, moderate winds, and a constant presence of humidity. Situated in the geographical region prone to regular and significant precipitation, this destination experiences a rather uniform weather throughout the year.
Throughout the year, temperature highs range from 81°F (27.2°C) in January to 86.5°F (30.3°C) in August, while temperature lows vary from 70.9°F (21.6°C) in February to 76.6°F (24.8°C) in August. Sea temperatures also oscillate, ranging from 79.3°F (26.3°C) in March to 85.3°F (29.6°C) in September. A similar pattern is also noted in terms of hours of daylight, ranging from 11.1 hours in December to 13.2 hours in June.
Relative humidity in Juana Díaz prevails throughout the year, with the values fluctuating between 76% and 81%. The modest variations in weather parameters result in a climate that is quite stable, yet tropical in essence. In regard to the amount of pressure, the minimum measure stands at 29.9 in October and the maximum at 30.01 in both January and February.
Manifesting a classic tropical monsoon climate, Juana Díaz bears witness to the highest rainfall of 4.45" (113mm) in September, with 21.8 rainy days on average seen in April. Furthermore, the city also displays clear skies, with the lowest cloud coverage of 25% in February and the highest reaching 34% in May.
Throughout the year, temperature highs range from 81°F (27.2°C) in January to 86.5°F (30.3°C) in August, while temperature lows vary from 70.9°F (21.6°C) in February to 76.6°F (24.8°C) in August. Sea temperatures also oscillate, ranging from 79.3°F (26.3°C) in March to 85.3°F (29.6°C) in September. A similar pattern is also noted in terms of hours of daylight, ranging from 11.1 hours in December to 13.2 hours in June.
Relative humidity in Juana Díaz prevails throughout the year, with the values fluctuating between 76% and 81%. The modest variations in weather parameters result in a climate that is quite stable, yet tropical in essence. In regard to the amount of pressure, the minimum measure stands at 29.9 in October and the maximum at 30.01 in both January and February.
Manifesting a classic tropical monsoon climate, Juana Díaz bears witness to the highest rainfall of 4.45" (113mm) in September, with 21.8 rainy days on average seen in April. Furthermore, the city also displays clear skies, with the lowest cloud coverage of 25% in February and the highest reaching 34% in May.
The best time to visit Juana Díaz
Aligning with the adequate weather conditions, the best time to visit Juana Díaz would coincide with the lightest rainfall, lowest humidity and gentle winds. Specifically, February and March emerge as the appropriate months, wherein the rainfall stands between 0.83" (21mm) and 1.54" (39mm), the relative humidity is maintained around 76% to 77%, and the wind speed ranges from 6.8mph (10.9km/h) to 7.2mph (11.6km/h).
The worst time to visit Juana Díaz
While considering unfavorable weather conditions, the high rainfall and humidity levels of September can potentially disrupt outdoor activities. The intense showers marked by 4.45" (113mm) of rainfall, 80% humidity, and coupled with cloud coverage of 27% make it the less desirable time to visit Juana Díaz.
Spring weather in Juana Díaz
Spring in Juana Díaz, lasting from March to May, carries the tropical charm, marked by rising temperatures and the onset of heavier showers. While temperatures vary from 72.1°F (22.3°C) to 75.7°F (24.3°C), rainfall escalates from 1.54" (39mm) to 2.95" (75mm). Average daylight gradually stretches from 12.1 hours to 13 hours, ensuring ample time to soak in the sun.
Summer weather in Juana Díaz
The summer months from June to August in Juana Díaz present an elevated temperature scale, ranging from 83.2°F (28.4°C) to 84.5°F (29.2°C) in sea temperature, and high humidity level around 78%. Despite these tropical conditions, the region keeps a consistent wind movement ranging from 7.5mph (12.1km/h) to 8mph (12.9km/h), easing the summer heat.
Autumn weather in Juana Díaz
Autumn, stretching from September to November, brings the peak rainfall season to Juana Díaz. With rainfall amounts varying from 4.45" (113mm) to 2.76" (70mm) and an average of 22 to 24 rainy days per month, the city experiences its most humid period. The temperature during this time hovers between 75.7°F (24.3°C) to 74.5°F (23.6°C).
Winter weather in Juana Díaz
Winter in Juana Díaz extends from December to February, presenting mild weather conditions. With temperature lows ranging from 71.2°F (21.8°C) to 72.7°F (22.6°C) and highs from 81°F (27.2°C) to 82°F (27.8°C), the season stays comfortably warm. Despite being the dry season, rainfall persists, ranging from 0.91" (23mm) to 1.42" (36mm), accompanied by moderate winds averaging from 5.5mph (8.9km/h) to 7mph (11.3km/h).
Weather in January
In Puerto Rico, USA, January weather tends to be a blend of light showers and bright sunshine, offering a refreshing start to the new year. Compared to the previous month, the atmospheric pressure stays level, measuring consistently at 30.01 in. Weather in January »
Weather in February
February, the shortest month of the year, brings slight changes to the weather in Puerto Rico, USA. As the days progress, daylight extends by nearly half an hour compared to January. Winds reach speeds of 7.2mph (11.6km/h) on average, adding a moderate breeze to the warm, tropical climate. Weather in February »
Weather in March
March marks the transition from winter to spring in Puerto Rico, USA. With unexpected rainfall climbing to 1.54 in on average, the weather remains generally temperate, ensuring lush, green surroundings. The coastline also comes alive with beachgoers as the seas slowly warm up. Weather in March »
Weather in April
April's weather in Puerto Rico, USA, ushers in a sense of vibrancy and life that engulfs the island. Though temperature variations between March and April remain subtle, rainfall increases to an average of 1.57 in, providing nourishment for flora. Weather in April »
Weather in May
The month of May in Puerto Rico, USA, is characterized by a mild uptick in temperatures and increased rainfall. At 2.95 in, rainfall reaches its peak for the first half of the year, which contributes to the enhanced lushness of the landscape. Weather in May »
Weather in June
June heralds the advent of summer in Puerto Rico, USA, with an overall increase in temperatures. The median sea temperature elevates to a pleasant 83.2°F (28.4°C), providing ideal conditions for those looking to indulge in water sports. Weather in June »
Weather in July
July's weather in Puerto Rico, USA, carries the heat of June forward. While the overall atmosphere stays humid and warm, rainfall reaches a level of 2.91 in, falling slightly from June's figures. The island experiences longer days, and the increase in sunshine creates an alluring backdrop for those seeking outdoor adventures. Weather in July »
Weather in August
August sees the continuation of summer weather conditions in Puerto Rico, USA. While the temperatures remain relatively stable, the sea temperature peaks at 84.5°F (29.2°C), making it perfect for any water-based activities. Evenings carry the warmth of the day and have a slightly higher humidity, intensifying night-time tropical feel. Weather in August »
Weather in September
September witnesses the conclusion of summer in Puerto Rico, USA. The coastal town is bathed by occasional heavy rains with an average of 4.45 in, the highest throughout the year. The climate grows more dynamic with noticeable fluctuations in the evenings making them cooler and more enjoyable. Weather in September »
Weather in October
October, like September, in Juana Díaz, Puerto Rico, is a moderately hot autumn month, with an average temperature ranging between max 84.7°F (29.3°C) and min 75.9°F (24.4°C). Juana Díaz, Puerto Rico, experiences an average high-temperature of a still moderately hot 84.7°F (29.3°C) in October, marking an insignificant shift from 85.8°F (29.9°C) in September. Weather in October »
Weather in November
As November rolls in, holiday vibes start to permeate the weather in Puerto Rico, USA. After the wet end of September and most of October, rainfall decreases to an average of 2.76 in, paving the way for more dry, sunny days. The month sees a gentle fall in temperature, heralding the onset of cooler weather. Weather in November »
Weather in December
December rounds off the year in Puerto Rico, USA, with a noticeable coolness in the air. Despite the slight dip in temperatures, the month remains highly pleasant, making it an ideal time for exploring the city. December marks this slight drop in sea temperatures after a remarkably warm and moist November. Weather in December »
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the month when Juana Díaz sees the average lowest temperatures, with a high of 81°F (27.2°C) and a low of 71.2°F (21.8°C).
How much does it rain?
In Juana Díaz, during the entire year, the rain falls for 249.1 days and collects up to 28.82" (732mm) of precipitation.
When is the lowest UV index?
January through April, November and December, with an average maximum UV index of 6, are months with the lowest UV index.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 15 days and typically collects 0.83" (21mm) of precipitation.
What are the months with the coldest ocean?
February and March, with an average ocean temperature of 79.3°F (26.3°C), are months with the coldest seawater.
What is the least humid month?
With an average relative humidity of 76%, March is the least humid month.
When is the highest UV index?
May through October, with an average maximum UV index of 7, are months with the highest UV index.
When are the longest days?
June has the longest days of the year, with an average of 13h and 12min of daylight.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.9h of sunshine.
What is the warmest month?
August, with average temperatures reaching a high of 86.5°F (30.3°C) and a low of 76.6°F (24.8°C), is the warmest month in Juana Díaz.
What is the rainiest month?
September is the month with the most rainfall. Rain falls for 22.7 days and accumulates 4.45" (113mm) of precipitation.
When is the ocean warmest?
September is the month with the warmest seawater, with an average ocean temperature of 85.3°F (29.6°C).
What is the most humid month?
With an average relative humidity of 81%, November is the most humid month.
What is the month with the least sunshine?
The month with the least sunshine is November, with an average of 6.9h of sunshine.
What is the month with the shortest days?
With an average of 11h and 6min of daylight, December has the shortest days of the year in Juana Díaz.
Is there Daylight Saving Time (DST)?
Juana Díaz does not utilize Daylight Saving Time (DST). AST timezone is used over the entire year.
Average temperature
Juana Díaz, PR
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81°F).
The month with the highest average low temperature is August (76.6°F).
The coldest months (with the lowest average low temperature) are February and March (70.9°F).
Average pressure
Juana Díaz, PR
- Average pressure in January:
30.01"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
30"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.9"Hg - Average pressure in November:
29.9"Hg - Average pressure in December:
29.98"Hg
The months with the highest atmospheric pressure are January and February (30.01"Hg).
The months with the lowest atmospheric pressure are October and November (29.9"Hg).
Average wind speed
Juana Díaz, PR
- Average wind speed in January:
7mph - Average wind speed in February:
7.2mph - Average wind speed in March:
6.8mph - Average wind speed in April:
6.9mph - Average wind speed in May:
7mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
8mph - Average wind speed in August:
7.5mph - Average wind speed in September:
6mph - Average wind speed in October:
5.7mph - Average wind speed in November:
5.5mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.5mph).
Average humidity
Juana Díaz, PR
The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is March (76%).
Average rainfall
Juana Díaz, PR
- Average rainfall in January:
0.91" - Average rainfall in February:
0.83" - Average rainfall in March:
1.54" - Average rainfall in April:
1.57" - Average rainfall in May:
2.95" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.91" - Average rainfall in August:
3.62" - Average rainfall in September:
4.45" - Average rainfall in October:
3.74" - Average rainfall in November:
2.76" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days
Juana Díaz, PR
- Average rainfall days in January:
16.2 days - Average rainfall days in February:
15 days - Average rainfall days in March:
18.8 days - Average rainfall days in April:
21.8 days - Average rainfall days in May:
24.6 days - Average rainfall days in June:
19.3 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
22.8 days - Average rainfall days in September:
22.7 days - Average rainfall days in October:
24.8 days - Average rainfall days in November:
23.8 days - Average rainfall days in December:
18.6 days
The month with the highest number of rainy days is October (24.8 days).
The month with the least rainy days is February (15 days).
Average sea temperature
Juana Díaz, PR
The best month for swimming (with the highest average sea temperature) is September (85.3°F).
The coldest month (with the lowest average sea temperature) is March (79.3°F).
Average daylight / Average sunshine
Juana Díaz, PR
- Average daylight in January:
11h and 1min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 4min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 1min
- Average daylight in July:
13h and 1min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 4min - Average daylight in November:
11h and 2min - Average daylight in December:
11h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in January:
9h and 1min - Average sunshine in February:
9h and 1min - Average sunshine in March:
8h and 4min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
8h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
8h and 2min - Average sunshine in November:
6h and 5min - Average sunshine in December:
7h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).
Average sunshine days
Juana Díaz, PR
- Average sunshine days in January:
7.4 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
7.6 days - Average sunshine days in April:
4.7 days - Average sunshine days in May:
2.7 days - Average sunshine days in June:
4.9 days
- Average sunshine days in July:
4.8 days - Average sunshine days in August:
3.5 days - Average sunshine days in September:
3.6 days - Average sunshine days in October:
2.6 days - Average sunshine days in November:
3.2 days - Average sunshine days in December:
7 days
The month with the most sunshine days is March (7.6 days).
The month with the least sunshine days is October (2.6 days).
Average UV index
Juana Díaz, PR
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover
Juana Díaz, PR
The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is February (Cloud cover 25).
Average visibility
Juana Díaz, PR
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Juana Díaz, Puerto Rico, USA
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