January weather forecastVaini, Tonga
January
Weather in January
The year starts with a distinctively humid period in Vaini, Tonga. Winds blowing at 24.2km/h (15mph) help to disseminate the heat, while an average pressure of 1008.6mb reins. A characteristic humid tropical weather sets the stage for the overall climate in this month. Following daylight spans of 13.2 hours, the city adores sublime sunsets, leaving a cooling comfort for the nights.Temperature
The arrival of January brings an average high-temperature of a still moderately hot 26.8°C (80.2°F), nearly identical to December's 25.6°C (78.1°F). Vaini's nocturnal readings in January exhibit minimal variation from the daytime temperatures, averaging at a still moderately hot 25.9°C (78.6°F).Humidity
With an average relative humidity of 80%, January is the most humid month in Vaini.Rainfall
In January, the rain falls for 22.3 days. Throughout January, 124mm (4.88") of precipitation is accumulated. In Vaini, Tonga, during the entire year, the rain falls for 193.9 days and collects up to 991mm (39.02") of precipitation.Daylight
The average length of the day in January in Vaini is 13h and 15min.On the first day of the month, sunrise is at 06:02 and sunset at 19:26. On the last day of January, sunrise is at 06:22 and sunset at 19:25 +13.
Sunshine
In Vaini, Tonga, the average sunshine in January is 7h.UV index
The months with the highest UV index in Vaini are January through March, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 7 in January leads to these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Vaini, Tonga
- Average high temperature in January: 26.8°C
The warmest month (with the highest average high temperature) is February (27.5°C).
The month with the lowest average high temperature is September (22.9°C).
- Average low temperature in January: 25.9°C
The month with the highest average low temperature is February (26.7°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).
Average pressure in January
Vaini, Tonga
- Average pressure in January: 1008.6mbar
The months with the highest atmospheric pressure are August and September (1016.2mbar).
The months with the lowest atmospheric pressure are January and February (1008.6mbar).
Average wind speed in January
Vaini, Tonga
- Average wind speed in January: 23.3km/h
The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is January (23.3km/h).
Average humidity in January
Vaini, Tonga
- Average humidity in January: 80%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in January
Vaini, Tonga
- Average rainfall in January: 124mm
The wettest month (with the highest rainfall) is February (163mm).
The driest month (with the least rainfall) is October (36mm).
Average rainfall days in January
Vaini, Tonga
- Average rainfall days in January: 22.3 days
The month with the highest number of rainy days is February (22.7 days).
The month with the least rainy days is October (12.9 days).
Average daylight in January /
Average sunshine in January
Vaini, Tonga
- Average daylight in January: 13h and 12min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in January: 7h and 0min
The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 48min).
Average sunshine days in January
Vaini, Tonga
- Average sunshine days in January: 4.8 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (3.8 days).
Average UV index in January
Vaini, Tonga
- Average UV index in January: 7
The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in January
Vaini, Tonga
- Average cloud cover in January: 49
The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in January
Vaini, Tonga
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
