June weather forecastKoloa, Tonga
June
Weather in June
June in Koloa, Tonga continues the trend of the rainy season withdrawal. Further decline in rainfall is noticeable; with 50mm (1.97"), June records the least rainfall in the year. The clear skies and enhanced sunshine make for an excellent time for sightseeing and beach activities. Sea breezes generate a cooling effect, mitigating increasing daytime temperatures. Safety measures, such as sunscreen and hats, should be considered during prolonged sun exposure due to high UV index levels.Temperature
Koloa's June reports an average high-temperature of a still moderately hot 25.7°C (78.3°F), exhibiting a minor difference from May. Koloa, in June, registers an average low temperature of 24.7°C (76.5°F), showing a minute reduction from daily highs.Humidity
In Koloa, the average relative humidity in June is 78%.Rainfall
In June, the rain falls for 14.8 days. Throughout June, 50mm (1.97") of precipitation is accumulated. In Koloa, Tonga, during the entire year, the rain falls for 227.2 days and collects up to 1333mm (52.48") of precipitation.Daylight
June has the shortest days of the year in Koloa, with an average of 11h and 0min of daylight.On the first day of the month, sunrise is at 07:01 and sunset at 18:05. On the last day of June, in Koloa, sunrise is at 07:08 and sunset at 18:10 +13.
Sunshine
The average sunshine in June in Koloa is 6.9h.UV index
The months with the lowest UV index in Koloa are May through November, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during June translates into the following guidance:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. 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 June
Koloa, Tonga
- Average high temperature in June: 25.7°C
The warmest month (with the highest average high temperature) is February (28.3°C).
The month with the lowest average high temperature is September (24.7°C).
- Average low temperature in June: 24.7°C
The month with the highest average low temperature is February (27.3°C).
The coldest month (with the lowest average low temperature) is July (23.7°C).
Average pressure in June
Koloa, Tonga
- Average pressure in June: 1014.3mbar
The months with the highest atmospheric pressure are August and September (1014.8mbar).
The month with the lowest atmospheric pressure is January (1007.8mbar).
Average wind speed in June
Koloa, Tonga
- Average wind speed in June: 27km/h
The windiest month (with the highest average wind speed) is June (27km/h).
The calmest month (with the lowest average wind speed) is March (20.2km/h).
Average humidity in June
Koloa, Tonga
- Average humidity in June: 78%
The months with the highest relative humidity are September, October and November (79%).
The month with the lowest relative humidity is April (77%).
Average rainfall in June
Koloa, Tonga
- Average rainfall in June: 50mm
The wettest month (with the highest rainfall) is January (275mm).
The driest month (with the least rainfall) is August (42mm).
Average rainfall days in June
Koloa, Tonga
- Average rainfall days in June: 14.8 days
The months with the highest number of rainy days are February and March (24.3 days).
The month with the least rainy days is August (14.6 days).
Average daylight in June /
Average sunshine in June
Koloa, Tonga
- Average daylight in June: 11h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in June: 6h and 54min
The month with the most sunshine is December (Average sunshine: 8h and 12min).
The month with the least sunshine is September (Average sunshine: 6h and 36min).
Average sunshine days in June
Koloa, Tonga
- Average sunshine days in June: 10.1 days
The month with the most sunshine days is August (11.8 days).
The month with the least sunshine days is February (2.3 days).
Average UV index in June
Koloa, Tonga
- Average UV index in June: 6
The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).
Average cloud cover in June
Koloa, Tonga
- Average cloud cover in June: 51
The month with the most cloud cover is October (Cloud cover 55).
The month with the least cloud cover is March (Cloud cover 46).
Average visibility in June
Koloa, Tonga
- Average visibility in June: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





