January weather forecastHaveluliku, Tonga
January
Weather in January
Starting the year with a high, January in Haveluliku, Tonga, provides warm sea temperatures with a high of 27.7°C (81.9°F). Weather patterns during this month are relatively consistent, with steady humidity and frequent rainfall. Despite the potential for storms, this period also offers abundant daylight hours, meaning plenty of opportunities for outdoor activities. Wind conditions remain reasonably calm and steady, permitting excellent sailing conditions. Overall, January's weather presents a mix of typical tropical characteristics, with warmer sea temperatures and frequent precipitation.Temperature
The advent of January sees the average high-temperature at a still warm 26.8°C (80.2°F), subtly shifted from December's 25.6°C (78.1°F). Nighttime temperatures in Haveluliku during January report a consistent average of 25.9°C (78.6°F).Humidity
The most humid month in Haveluliku is January, with an average relative humidity of 80%.Rainfall
In Haveluliku, in January, during 22.3 rainfall days, 124mm (4.88") of precipitation is typically accumulated. Throughout the year, in Haveluliku, there are 193.9 rainfall days, and 991mm (39.02") of precipitation is accumulated.Sea temperature
In January, the average sea temperature is 27.7°C (81.9°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.
Daylight
In January, the average length of the day is 13h and 15min.On the first day of January in Haveluliku, sunrise is at 06:02 and sunset at 19:25. On the last day of the month, sunrise is at 06:22 and sunset at 19:25 +13.
Sunshine
In Haveluliku, the average sunshine in January is 7h.UV index
January through March, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in January translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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 sea temperature in January
Haveluliku, Tonga
- Average sea temperature in January: 27.7°C
The best month for swimming (with the highest average sea temperature) is March (28.1°C).
The coldest months (with the lowest average sea temperature) are August and September (23.8°C).
Average daylight in January /
Average sunshine in January
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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).





