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
Weather in January
Temperature
January's average high-temperature stands at a still moderately hot 27.3°C (81.1°F), showing little deviation from December's 26.5°C (79.7°F). The average temperature in Alfaro, Costa Rica, during January nights dips to a refreshing 16.8°C (62.2°F).Heat index
Throughout January, the heat index is calculated to be a hot 30°C (86°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
The average relative humidity in January is 75%.Rainfall
In Alfaro, during January, the rain falls for 11.3 days and regularly aggregates up to 21mm (0.83") of precipitation. In Alfaro, during the entire year, the rain falls for 272 days and collects up to 2217mm (87.28") of precipitation.Daylight
The average length of the day in January is 11h and 37min.On the first day of January in Alfaro, sunrise is at 05:55 and sunset at 17:27. On the last day of the month, sunrise is at 06:00 and sunset at 17:42 CST.
Sunshine
In Alfaro, the average sunshine in January is 8.3h.UV index
January through April, June, July, September, October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 6 suggests this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are January temperatures in Alfaro?
What is the average humidity in January in Alfaro?
How many days does it rain in January in Alfaro?
What is the average length of the day in January in Alfaro?
When is the sunrise / sunset in January in Alfaro?
How long on average sun shines in January in Alfaro?
What is the month with the highest UV index in Alfaro?
How high is the UV index in January in Alfaro?
Average temperature in January
Alfaro, Costa Rica
- Average high temperature in January: 27.3°C
The warmest months (with the highest average high temperature) are March and April (29.7°C).
The month with the lowest average high temperature is October (25.4°C).
- Average low temperature in January: 16.8°C
The month with the highest average low temperature is May (19.8°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in January
Alfaro, Costa Rica
- Average pressure in January: 1012.1mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).
Average wind speed in January
Alfaro, Costa Rica
- Average wind speed in January: 10.5km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is September (3.8km/h).
Average humidity in January
Alfaro, Costa Rica
- Average humidity in January: 75%
The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is March (70%).
Average rainfall in January
Alfaro, Costa Rica
- Average rainfall in January: 21mm
The wettest month (with the highest rainfall) is October (396mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in January
Alfaro, Costa Rica
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is October (30.2 days).
The month with the least rainy days is February (10.3 days).
Average daylight in January /
Average sunshine in January
Alfaro, 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 2min
The month with the most sunshine is March (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 0min).
Average sunshine days in January
Alfaro, Costa Rica
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (0.5 days).
Average UV index in January
Alfaro, Costa Rica
- Average UV index in January: 6
The months with the highest UV index are January, February, March, April, June, July, September, October and December (UV index 6).
The months with the lowest UV index are May, August and November (UV index 5).
Average cloud cover in January
Alfaro, Costa Rica
- Average cloud cover in January: 23
The month with the most cloud cover is October (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in January
Alfaro, Costa Rica
- Average visibility in January: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (7km).
Alfaro, Costa Rica
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