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
The average high-temperature during December registers at a still moderately hot 28.8°C (83.8°F), maintaining a close resemblance to the previous month. Throughout December, Gahi records a steady low-temperature average of 27.9°C (82.2°F), a minor decrease from its daytime counterpart.Heat index
December's mean heat index is evaluated at a hot 33°C (91.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In December, the average relative humidity is 76%.Rainfall
In December, the rain falls for 28.2 days. Throughout December, 267mm (10.51") of precipitation is accumulated. In Gahi, during the entire year, the rain falls for 285.2 days and collects up to 2066mm (81.34") of precipitation.Daylight
With an average of 12h and 54min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 05:08 and sunset at 17:59. On the last day of the month, sunrise is at 05:21 and sunset at 18:15 +12.
Sunshine
In Gahi, the average sunshine in December is 9.1h.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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 7 during December translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Gahi have in December?
When is the highest UV index?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Gahi, Wallis and Futuna
- Average high temperature in December: 28.8°C
The warmest months (with the highest average high temperature) are February and March (29.1°C).
The months with the lowest average high temperature are July, August and September (27.7°C).
- Average low temperature in December: 27.9°C
The month with the highest average low temperature is March (28.2°C).
The coldest month (with the lowest average low temperature) is August (26.8°C).
Average pressure in December
Gahi, Wallis and Futuna
- Average pressure in December: 1008mbar
The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is January (1007.1mbar).
Average wind speed in December
Gahi, Wallis and Futuna
- Average wind speed in December: 19.4km/h
The windiest month (with the highest average wind speed) is July (27.2km/h).
The calmest month (with the lowest average wind speed) is March (17.2km/h).
Average humidity in December
Gahi, Wallis and Futuna
- Average humidity in December: 76%
The months with the highest relative humidity are June, July, August and September (78%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Gahi, Wallis and Futuna
- Average rainfall in December: 267mm
The wettest month (with the highest rainfall) is February (405mm).
The driest month (with the least rainfall) is August (67mm).
Average rainfall days in December
Gahi, Wallis and Futuna
- Average rainfall days in December: 28.2 days
The month with the highest number of rainy days is December (28.2 days).
The month with the least rainy days is July (19.1 days).
Average daylight in December /
Average sunshine in December
Gahi, Wallis and Futuna
- Average daylight in December: 12h and 5min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in December: 9h and 1min
The month with the most sunshine is January (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 5h and 42min).
Average sunshine days in December
Gahi, Wallis and Futuna
- Average sunshine days in December: 1.5 days
The month with the most sunshine days is July (9.3 days).
The month with the least sunshine days is December (1.5 days).
Average UV index in December
Gahi, Wallis and Futuna
- 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
Gahi, Wallis and Futuna
- Average cloud cover in December: 46
The month with the most cloud cover is August (Cloud cover 49).
The months with the least cloud cover are March, April and May (Cloud cover 44).
Average visibility in December
Gahi, Wallis and Futuna
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
Gahi, Wallis and Futuna
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