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 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
January
Weather in January
Temperature
The arrival of January denotes a barely perceptible change in the average high-temperatures to a still moderately hot 25.9°C (78.6°F) from December's 25.2°C (77.4°F). January's average low-temperature reading in Birrí settles at a refreshing 15.2°C (59.4°F).Humidity
In Birrí, Costa Rica, the average relative humidity in January is 76%.Rainfall
In Birrí, Costa Rica, during January, the rain falls for 14.8 days and regularly aggregates up to 32mm (1.26") of precipitation. In Birrí, during the entire year, the rain falls for 289.5 days and collects up to 2506mm (98.66") of precipitation.Daylight
In January, the average length of the day is 11h and 37min.On the first day of the month, sunrise is at 05:53 and sunset at 17:26. On the last day of January, sunrise is at 05:59 and sunset at 17:40 CST.
Sunshine
The average sunshine in January is 8.8h.UV index
January, February, May through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 5 in January leads to these recommendations:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January in Birrí?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Birrí, Costa Rica
- Average high temperature in January: 25.9°C
The warmest month (with the highest average high temperature) is April (28°C).
The month with the lowest average high temperature is October (23.8°C).
- Average low temperature in January: 15.2°C
The month with the highest average low temperature is May (18.3°C).
The coldest month (with the lowest average low temperature) is January (15.2°C).
Average pressure in January
Birrí, Costa Rica
- Average pressure in January: 1012.2mbar
The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is October (1010.8mbar).
Average wind speed in January
Birrí, Costa Rica
- Average wind speed in January: 10.7km/h
The windiest month (with the highest average wind speed) is February (10.9km/h).
The calmest month (with the lowest average wind speed) is September (3.9km/h).
Average humidity in January
Birrí, Costa Rica
- Average humidity in January: 76%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is March (71%).
Average rainfall in January
Birrí, Costa Rica
- Average rainfall in January: 32mm
The wettest month (with the highest rainfall) is October (421mm).
The driest month (with the least rainfall) is February (25mm).
Average rainfall days in January
Birrí, Costa Rica
- Average rainfall days in January: 14.8 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (12.3 days).
Average daylight in January /
Average sunshine in January
Birrí, Costa Rica
- Average daylight in January: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in January: 8h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 6h and 12min).
Average sunshine days in January
Birrí, Costa Rica
- Average sunshine days in January: 11.4 days
The month with the most sunshine days is February (11.9 days).
The month with the least sunshine days is September (0.4 days).
Average UV index in January
Birrí, Costa Rica
- Average UV index in January: 5
The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in January
Birrí, Costa Rica
- Average cloud cover in January: 26
The month with the most cloud cover is October (Cloud cover 62).
The month with the least cloud cover is February (Cloud cover 23).
Average visibility in January
Birrí, Costa Rica
- Average visibility in January: 9km
The months with the highest visibility are January, February, March and April (9km).
The months with the lowest visibility are September and October (6km).
