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
Guarumal, Costa Rica, observes a minor difference in average high-temperatures between November's 28.3°C (82.9°F) and December's 28.7°C (83.7°F). Guarumal maintains an average of approximately a still moderately hot 24.6°C (76.3°F) during December nights, with only a minimal decrease from the daytime temperature.Heat index
The heat index value during December is estimated at a hot 33°C (91.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In Guarumal, the average relative humidity in December is 75%.Rainfall
In Guarumal, Costa Rica, in December, during 16.3 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Guarumal, during the entire year, the rain falls for 236.2 days and collects up to 1501mm (59.09") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 05:39 and sunset at 17:14. On the last day of December, sunrise is at 05:53 and sunset at 17:28 CST.
Sunshine
In December, the average sunshine in Guarumal is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
Is it hot in Guarumal during December?
What is the average humidity in December in Guarumal?
How many days does it rain in December in Guarumal?
What is the month with the shortest days in Guarumal?
What is the average length of the day in December in Guarumal?
What time are sunrise and sunset in December in Guarumal?
How long on average sun shines in December in Guarumal?
What are the months with the highest UV index in Guarumal?
What are the months with the lowest UV index in Guarumal?
What is the UV index intensity in December in Guarumal?
Average temperature in December
Guarumal, Costa Rica
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is October (28.1°C).
- Average low temperature in December: 24.6°C
The months with the highest average low temperature are April and May (26.2°C).
The coldest month (with the lowest average low temperature) is January (24.5°C).
Average pressure in December
Guarumal, Costa Rica
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Guarumal, Costa Rica
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is March (9.7km/h).
The calmest month (with the lowest average wind speed) is June (7.6km/h).
Average humidity in December
Guarumal, Costa Rica
- Average humidity in December: 75%
The months with the highest relative humidity are June and October (80%).
The months with the lowest relative humidity are February and March (68%).
Average rainfall in December
Guarumal, Costa Rica
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is October (383mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in December
Guarumal, Costa Rica
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is October (26.1 days).
The month with the least rainy days is February (7.8 days).
Average daylight in December /
Average sunshine in December
Guarumal, 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is October (Average sunshine: 8h and 6min).
Average sunshine days in December
Guarumal, Costa Rica
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is March (18.6 days).
The month with the least sunshine days is May (4.3 days).
Average UV index in December
Guarumal, Costa Rica
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Guarumal, Costa Rica
- Average cloud cover in December: 25
The month with the most cloud cover is October (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 13).
Average visibility in December
Guarumal, Costa Rica
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).
Guarumal, Costa Rica
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