Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
At the onset of January, Fajardo records an average high-temperature of a still warm 79.3°F (26.3°C), showing little deviation from the preceding month. A mean low-temperature of 76.3°F (24.6°C) is anticipated during the month of January, a slight step down from the daytime high.Humidity
The average relative humidity in January is 77%.Rainfall
In Fajardo, Puerto Rico, in January, during 15.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Fajardo, during the entire year, the rain falls for 216 days and collects up to 21.5" (546mm) of precipitation.Ocean temperature
In January, the average ocean temperature is 79.5°F (26.4°C).Note: Water temperature ranging between 77°F (25°C) and 84.2°F (29°C) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
The average length of the day in January is 11h and 11min.On the first day of the month, sunrise is at 6:54 am and sunset at 5:57 pm. On the last day of January, sunrise is at 6:56 am and sunset at 6:15 pm AST.
Sunshine
In Fajardo, the average sunshine in January is 8.4h.UV index
The months with the highest UV index in Fajardo are January, March through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 7 in January translates into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
What is the water temperature in January?
How many hours of daylight does Fajardo have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the highest UV index?
What is the UV index reading in January?
Average temperature in January
Fajardo, PR
- Average high temperature in January: 79.3°F
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).
- Average low temperature in January: 76.3°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 in January
Fajardo, PR
- Average pressure in January: 30.02"Hg
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 in January
Fajardo, PR
- Average wind speed in January: 11.5mph
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 in January
Fajardo, PR
- Average humidity in January: 77%
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 in January
Fajardo, PR
- Average rainfall in January: 1.14"
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 in January
Fajardo, PR
- Average rainfall days in January: 15.5 days
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 sea temperature in January
Fajardo, PR
- Average sea temperature in January: 79.6°F
The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).
Average daylight in January /
Average sunshine in January
Fajardo, 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: 8h and 2min
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 in January
Fajardo, PR
- Average sunshine days in January: 7.6 days
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 in January
Fajardo, PR
- Average UV index in January: 7
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 in January
Fajardo, PR
- Average cloud cover in January: 37
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 in January
Fajardo, 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).
Fajardo, Puerto Rico, USA
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