Climate and monthly weather forecast
Naguabo, PR

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The climate of Naguabo

Naguabo in Puerto Rico, USA, experiences what is typically classified as a Tropical monsoon climate in the Köppen climate classification. Situated in the tropical region, Naguabo is privy to consistent and ample warmth throughout the year coupled with high levels of humidity.

Describing the city's weather at a high-level overview, one may consider the constancy of its annual temperatures. The figures fluctuate mildly, the highest monthly average high temperature being 84.2°F (29°C) in August and the lowest 79°F (26.1°C) in March. On the cooler side of the scale, the least warmth observed sits at 75.7°F (24.3°C) in February and March, while July brings the highest average low at 80.8°F (27.1°C).

Regarding rainfall, monthly averages in Naguabo span from 1.06" (27mm) in February to a substantially heavier downpour of 2.83" (72mm) in August. No month spares Naguabo from precipitation, as even the driest months host a significant number of rainfall days - from 13.8 days in February to a high of 21.3 days in August.

Humidity measures aren't left behind in the overall consistency of Naguabo's climate. Each month records a relative humidity not far removed from the annual average of 78%. There is little variance, from 76% in March and February, rising marginally to a maximum of 79% in May through to August.

The best time to visit Naguabo

If the goal is to maximize sunshine during the visit, considering the hours of daylight and sunshine might be crucial. The period from April to June fits the criteria nicely. April and May offer generous daylight - around 12.6 to 13.2 hours and approximately 10.3 to 10.6 hours of sunshine. Aside from bountiful sunlight, these months also offer a more favorable temperature extremity, helping visitors enjoy the sights without the discomfort of extreme heat.

The worst time to visit Naguabo

Naguabo might present some challenges for visitors during the peak of its monsoon season, particularly from July to September. These months register the highest rainfall figures, peaking in August with 2.83" (72mm), translating to approximately 19.8 to 21.3 days of rain monthly. Coupled with the highest humidity levels, it's a period characterised by sticky heat and frequent rain, which might deter some.

Moreover, August yields the highest average temperature; hence it can be a bit uncomfortable for some people, especially those unaccustomed to tropical climate levels.

Spring weather in Naguabo

Spring months of March, April, and May in Naguabo bring comfortable temperatures, raining from 79°F (26.1°C) to 81.5°F (27.5°C) for the highest monthly averages and 75.7°F (24.3°C) to 78.4°F (25.8°C) for monthly average lows. A noticeable increase in daylight hours is experienced in spring - starting from 12.1 hours in March, reaching a high of 13.2 hours in May.

The spring season also ushers in increased sunshine, with May boasting the highest figure of 10.3 hours of average daily sunshine. However, rainfall remains mostly consistent with averages ranging from 1.14 to 1.69" (43mm) per month.

Summer weather in Naguabo

Summer in Naguabo encompasses June, July, and August. Temperatures during this period reach their peak, with the average monthly temperature resting between 82.9°F (28.3°C) and 84.2°F (29°C) at the height and monthly averages lower limit between 79.7°F (26.5°C) and 80.8°F (27.1°C).

Unexpectedly, it is not just heat that summer brings: rainfall also peaks, reaching the highest monthly average of 2.83" (72mm) in August. Relative humidity reaches a yearly high of 79%, further heightening the impression of the tropical monsoon weather.

Autumn weather in Naguabo

Characterized by slight temperature declines, autumn in Naguabo - from September to November - sees average highs ranging from 84°F (28.9°C) to 82.2°F (27.9°C) and average lows between 80.8°F (27.1°C) and 79.2°F (26.2°C).

Though rainfall decreases slightly compared to the summer months, November still records a substantial monthly average of 2.4" (61mm). Sunshine hours drop to a yearly low of 6.5 hours per day, which is worth noting for those planning their visits.

Winter weather in Naguabo

Winters in Naguabo, spanning December to February, are undeniably mild, certainly if compared to many locations at similar latitudes. Temperatures remain comfortable, with monthly average highs between 79.3°F (26.3°C) and 80.2°F (26.8°C) and average lows from 75.7°F (24.3°C) to 77.2°F (25.1°C).

Rainfall continues its steady decline, with a monthly average of 1.14" (29mm) in both December and January, and 1.06" (27mm) in February, the driest month of the year.

Weather in January

The beginning of the year in Naguabo, Puerto Rico, USA promises relatively mild weather with conducive humidity levels and sufficient sunshine duration. Average wind speeds hover around 11.5mph (18.5km/h), with a possibility of wind gusts going up to 16.5mph (26.6km/h). Weather in January »

Weather in February

While January remains slightly stable, February in Naguabo steps up a notch and the weather fluctuates slightly. The temperature range narrows between 75.7°F (24.3°C) and 79.3°F (26.3°C) and there is a decrease in the number of rain days from 15.5 days to 13.8 days. Weather in February »

Weather in March

As one transitions from February towards March, the weather sustains certain distinct changes. The wind velocity slows down to an average speed of 10.9mph (17.5km/h), while the regular temperature range of 75.7°F (24.3°C) to 79°F (26.1°C) brings comfortable weather conditions. Weather in March »

Weather in April

April maintains the general weather trajectory of the previous month, but with several notable changes. The highest temperature increases to 80.4°F (26.9°C) while the wind speeds decrease further to 10.6mph (17.1km/h). The daylight hours stretch even further, with sunshine hours on a rise as well contributing to a more pronounced springtime feel. Weather in April »

Weather in May

May marks a critical transitional phase in Naguabo's annual weather pattern, as the temperatures peak to 81.5°F (27.5°C). The relative humidity this month climbs to 79%, indicating high levels of atmospheric moisture. Despite the high humidity levels, the longer daylight hours and increasing sunshine encourage a plethora of outdoor activities. Weather in May »

Weather in June

June steps into the spotlight with heightened temperatures, reaching a scorching high of 82.9°F (28.3°C). The weather conditions are marked by a continuation of high humidity and relatively constant levels of rainfall with 17.4 days. Weather in June »

Weather in July

July, being the height of summer, is understandably hotter with temperatures rising to a new high of 83.5°F (28.6°C). Coupled with high humidity, visitors often find this month to present the quintessential tropical climate. The frequency of rainfall peaks this month, making it the wettest month of the year with 19.8 days of rainfall. Weather in July »

Weather in August

August further escalates the temperature, with the month's higher temperatures reaching a scorching 84.2°F (29°C). Despite a slight decrease in rainfall days from 19.8 days to 21.3 days, the maximum wind gust reaches a superlative high of 16.3mph (26.2km/h). Weather in August »

Weather in September

In September, Naguabo welcomes the fall with slightly lower peak temperatures of 84°F (28.9°C). As August's scorching heat gives way, the lowered temperature and a slight drop in rainfall days creates a balance, making it ideal for outdoor pursuits. Weather in September »

Weather in October

October ushers in a noticeable drop in Naguabo's typically high temperatures, with an average range between 80.8°F (27.1°C) and 83.8°F (28.8°C). Following September's trend, October sees a drop in wind speed to 8.6mph (13.8km/h) with gusts reaching up to 12.6mph (20.3km/h). Weather in October »

Weather in November

Nearing the close of the year, November's weather is markedly cooler, with a temperature range between 79.2°F (26.2°C) to 82.2°F (27.9°C). The month is characterized by one of the shortest daylight durations of 11.3 hours, accompanied by a drop in sunshine hours to 6.5 hours. Weather in November »

Weather in December

December marks the final act in Naguabo's weather play, featuring a drop in temperature range from 77.2°F (25.1°C) to 80.2°F (26.8°C). It's worth noting the pressure levels go back up to 29.98in, reflecting the departure from the notorious hurricane season. Weather in December »
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 216 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

When is the highest UV index?

The months with the highest UV index in Naguabo are January, March through December, with an average maximum UV index of 7.

What is the least humid month?

February and March, with an average relative humidity of 76%, are the least humid months.

What is the driest month?

The month with the least rainfall is February, when the rain falls for 13.8 days and typically collects 1.06" (27mm) of precipitation.

When is the lowest UV index?

The month with the lowest UV index is February, with an average maximum UV index of 6.

What month is the coldest in Naguabo?

In Naguabo, March records the average lowest temperatures, peaking at 79°F (26.1°C) and reaching a low of 75.7°F (24.3°C).

What is the most humid month?

The months with the highest humidity are May through August, with an average relative humidity of 79%.

When are the longest days?

The month with the longest days is June, with an average of 13h and 12min of daylight.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10.6h of sunshine.

What is the hottest time of year?

In Naguabo, the peak average temperatures are observed in August, with a high of 84.2°F (29°C) and a low of 80.2°F (26.8°C).

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 21.3 days and typically aggregates up to 2.83" (72mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 11h and 6min of daylight.

Is there Daylight Saving Time (DST)?

Naguabo does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

What is the month with the least sunshine?

With an average of 6.4h of sunshine, December has the least sunshine of the year in Naguabo.

Average temperature
Naguabo, PR

Average temperature - Naguabo, PR

The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is March (79°F).

The months with the highest average low temperature are September and October (80.8°F).
The coldest months (with the lowest average low temperature) are February and March (75.7°F).

Average pressure
Naguabo, PR

Average pressure - Naguabo, PR

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

Average wind speed
Naguabo, PR

Average wind speed - Naguabo, PR

The windiest month (with the highest average wind speed) is July (12mph).
The calmest month (with the lowest average wind speed) is October (8.6mph).

Average humidity
Naguabo, PR

Average humidity - Naguabo, PR

The months with the highest relative humidity are May, June, July and August (79%).
The months with the lowest relative humidity are February and March (76%).

Average rainfall
Naguabo, PR

Average rainfall - Naguabo, PR

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is February (1.06").

Average rainfall days
Naguabo, PR

Average rainfall days - Naguabo, PR

The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (13.8 days).

Average daylight / Average sunshine
Naguabo, PR

Average daylight / Average sunshine - Naguabo, PR

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).

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days
Naguabo, PR

Average sunshine days - Naguabo, PR

The month with the most sunshine days is March (10 days).
The month with the least sunshine days is November (4.9 days).

Average UV index
Naguabo, PR

Average UV index - Naguabo, PR

The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).

Average cloud cover
Naguabo, PR

Average cloud cover - Naguabo, PR

The months with the most cloud cover are May and July (Cloud cover 40).
The months with the least cloud cover are February, September and October (Cloud cover 33).

Average visibility
Naguabo, PR

Average visibility - Naguabo, 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).

Naguabo, Puerto Rico, USA

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