January weather forecast
Adjuntas, PR

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Weather in January

January witnesses a gentle start to the year in Adjuntas, Puerto Rico, with a soothing balance between warmth and moisture. The range of climatic conditions—relative humidity of 77%, average high temperatures of 81.9°F (27.7°C), and average low temperatures of 72°F (22.2°C)—crafts an inviting weather. Notably, this month records a lower rainfall of 0.71" (18mm) across 15.6 days, providing plenty of days for exploring the beauty of the city. The daylight lasts 11.2 hours, offering copious amounts of sunshine for outdoor activities. The mild breeze at 7mph (11.3km/h) adds comfort to the overall pleasant mood of January.

Temperature

January proves to be the coldest month, recording an average maximum temperature of 81.9°F (27.7°C) and a minimum temperature of 72°F (22.2°C).

Heat index

January's mean heat index is appraised at a hot 87.8°F (31°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Consider that heat index readings are for situations in the shade and light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Adjuntas, the average relative humidity in January is 77%.

Rainfall

The month with the least rainfall is January, when the rain falls for 15.6 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

January through August, October through December are months without snowfall in Adjuntas.

Daylight

The average length of the day in January is 11h and 11min.
On the first day of January, sunrise is at 6:58 am and sunset at 6:02 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:20 pm AST.

Sunshine

In Adjuntas, the average sunshine in January is 9.3h.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Adjuntas. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in January translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Adjuntas?

January is the coldest month in Adjuntas, exhibiting average temperatures of 81.9°F (27.7°C) at the peak and 72°F (22.2°C) at the base.

What are the temperatures in Adjuntas in January?

The average high-temperature and low-temperature in Adjuntas, Puerto Rico, during January are 81.9°F (27.7°C) and 72°F (22.2°C) respectively. In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in January in Adjuntas?

In January, the average relative humidity is 77%.

What is the driest month in Adjuntas?

January is the month with the least rainfall in Adjuntas. Rain falls for 15.6 days and accumulates 0.71" (18mm) of precipitation.

How much does it rain in Adjuntas in January?

In Adjuntas, Puerto Rico, in January, during 15.6 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When it does not snow in Adjuntas?

In Adjuntas, Puerto Rico, snow does not fall in January through August, October through December.

What is the average length of the day in January in Adjuntas?

The average day length in January is 11h and 11min.

What time are sunrise and sunset in January in Adjuntas?

On the first day of January, sunrise is at 6:58 am and sunset at 6:02 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:20 pm AST.

How long on average sun shines in January in Adjuntas?

In Adjuntas, the average sunshine duration in January is 9.3h.

What is the month with the lowest UV index in Adjuntas?

January through March, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Adjuntas, Puerto Rico.

What is the UV index intensity in January in Adjuntas?

The average daily maximum UV index in January in Adjuntas, Puerto Rico, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Adjuntas, PR

Average temperature in January - Adjuntas, PR
  • Average high temperature in January: 81.9°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81.9°F).

  • Average low temperature in January: 72°F

The months with the highest average low temperature are July, August and October (76.6°F).
The coldest month (with the lowest average low temperature) is March (71.4°F).

Average pressure in January
Adjuntas, PR

Average pressure in January - Adjuntas, PR
  • Average pressure in January: 30.01"Hg

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).

Average wind speed in January
Adjuntas, PR

Average wind speed in January - Adjuntas, PR
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.6mph).

Average humidity in January
Adjuntas, PR

Average humidity in January - Adjuntas, PR
  • Average humidity in January: 77%

The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is March (75%).

Average rainfall in January
Adjuntas, PR

Average rainfall in January - Adjuntas, PR
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in January
Adjuntas, PR

Average rainfall days in January - Adjuntas, PR
  • Average rainfall days in January: 15.6 days

The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).

Average snowfall days in January
Adjuntas, PR

Average snowfall days in January - Adjuntas, PR
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

Average daylight in January /
Average sunshine in January
Adjuntas, PR

Average daylight in January / Average sunshine in January - Adjuntas, PR
  • Average daylight in January: 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 2min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).

Average sunshine days in January
Adjuntas, PR

Average sunshine days in January - Adjuntas, PR
  • Average sunshine days in January: 10.8 days

The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is November (5.1 days).

Average UV index in January
Adjuntas, PR

Average UV index in January - Adjuntas, PR
  • Average UV index in January: 6

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

Average cloud cover in January
Adjuntas, PR

Average cloud cover in January - Adjuntas, PR
  • Average cloud cover in January: 22

The month with the most cloud cover is May (Cloud cover 30).
The months with the least cloud cover are January and February (Cloud cover 22).

Average visibility in January
Adjuntas, PR

Average visibility in January - Adjuntas, PR
  • Average visibility in January: 6mi

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).

Adjuntas, Puerto Rico, USA

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