Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's onset in San Miguel records an average high-temperature of a still pleasant 22.7°C (72.9°F), a near match to November's 22.4°C (72.3°F). In the month of December, the nighttime temperature dips to a steady average of 14.3°C (57.7°F).Humidity
In San Miguel, the average relative humidity in December is 83%.Rainfall
In San Miguel, Costa Rica, in December, it is raining for 23 days, with typically 79mm (3.11") of accumulated precipitation. Throughout the year, in San Miguel, there are 305 rainfall days, and 2534mm (99.76") of precipitation is accumulated.Daylight
December has the shortest days of the year in San Miguel, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 05:37 and sunset at 17:13. On the last day of December, sunrise is at 05:52 and sunset at 17:26 CST.
Sunshine
In December, the average sunshine is 8h.UV index
The months with the highest UV index in San Miguel are January through December, with an average maximum UV index of 5. The months with the lowest UV index in San Miguel are January through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 during December translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in San Miguel?
What is the average humidity in December in San Miguel?
How much does it rain in San Miguel in December?
What is the month with the shortest days in San Miguel?
How many hours of daylight does San Miguel have in December?
What time are sunrise and sunset in December in San Miguel?
How long on average sun shines in December in San Miguel?
What are the months with the highest UV index in San Miguel?
What are the months with the lowest UV index in San Miguel?
What is the UV index reading in December in San Miguel?
Average temperature in December
San Miguel, Costa Rica
- Average high temperature in December: 22.7°C
The warmest month (with the highest average high temperature) is April (25.3°C).
The month with the lowest average high temperature is October (22.2°C).
- Average low temperature in December: 14.3°C
The month with the highest average low temperature is May (16.9°C).
The coldest month (with the lowest average low temperature) is January (13.7°C).
Average pressure in December
San Miguel, Costa Rica
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is January (1012.4mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).
Average wind speed in December
San Miguel, Costa Rica
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is February (8.6km/h).
The calmest month (with the lowest average wind speed) is September (3.7km/h).
Average humidity in December
San Miguel, Costa Rica
- Average humidity in December: 83%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is February (76%).
Average rainfall in December
San Miguel, Costa Rica
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is October (444mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in December
San Miguel, Costa Rica
- Average rainfall days in December: 23 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (14.9 days).
Average daylight in December /
Average sunshine in December
San Miguel, Costa Rica
- Average daylight in December: 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 36min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is October (Average sunshine: 6h and 30min).
Average sunshine days in December
San Miguel, Costa Rica
- Average sunshine days in December: 4.9 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is October (0.1 days).
Average UV index in December
San Miguel, Costa Rica
- Average UV index in December: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in December
San Miguel, Costa Rica
- Average cloud cover in December: 44
The month with the most cloud cover is October (Cloud cover 61).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in December
San Miguel, Costa Rica
- Average visibility in December: 8km
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are September and October (6km).
San Miguel, Costa Rica
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