December weather forecastCastillos, Uruguay
December
Weather in December
December, the first month of the summer in Castillos, is still a warm month, with an average temperature varying between 26.4°C (79.5°F) and 16.1°C (61°F).Temperature
Castillos's weather in December presents a minor rise in the average high-temperature, moving from a moderately hot 23.4°C (74.1°F) in November to a still warm 26.4°C (79.5°F). Throughout December, the temperature falls to an average low of 16.1°C (61°F).Humidity
In December, the average relative humidity is 69%.Rainfall
In Castillos, during December, the rain falls for 10.7 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, in Castillos, Uruguay, there are 129.5 rainfall days, and 692mm (27.24") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December, sunrise is at 05:16 and sunset at 19:32. On the last day of the month, sunrise is at 05:26 and sunset at 19:50 -03.
Sunshine
In Castillos, the average sunshine in December is 10.2h.UV index
January through March 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 health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during December translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castillos, Uruguay
- Average high temperature in December: 26.4°C
The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (14.6°C).
- Average low temperature in December: 16.1°C
The month with the highest average low temperature is February (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.9°C).
Average pressure in December
Castillos, Uruguay
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in December
Castillos, Uruguay
- Average wind speed in December: 16.7km/h
The windiest month (with the highest average wind speed) is September (17.6km/h).
The calmest month (with the lowest average wind speed) is May (14.7km/h).
Average humidity in December
Castillos, Uruguay
- Average humidity in December: 69%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (68%).
Average rainfall in December
Castillos, Uruguay
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is August (84mm).
The driest month (with the least rainfall) is March (45mm).
Average rainfall days in December
Castillos, Uruguay
- Average rainfall days in December: 10.7 days
The months with the highest number of rainy days are March and October (12 days).
The month with the least rainy days is June (9.1 days).
Average daylight in December /
Average sunshine in December
Castillos, Uruguay
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 10h and 12min
The month with the most sunshine is January (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 24min).
Average sunshine days in December
Castillos, Uruguay
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in December
Castillos, Uruguay
- Average UV index in December: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover in December
Castillos, Uruguay
- Average cloud cover in December: 28
The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Castillos, Uruguay
- Average visibility in December: 10km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).
