Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May in Koloa records an average high-temperature of a still warm 26.6°C (79.9°F), closely related to the 27.4°C (81.3°F) observed in April. Koloa observes a consistent average low-temperature of 25.9°C (78.6°F) throughout May nights.Humidity
The average relative humidity in May in Koloa is 78%.Rainfall
In May, the rain falls for 18.3 days. Throughout May, 94mm (3.7") of precipitation is accumulated. Throughout the year, there are 227.2 rainfall days, and 1333mm (52.48") of precipitation is accumulated.Daylight
In May, the average length of the day in Koloa is 11h and 14min.On the first day of May, sunrise is at 06:50 and sunset at 18:15. On the last day of the month, sunrise is at 07:01 and sunset at 18:05 +13.
Sunshine
In Koloa, Tonga, the average sunshine in May is 7h.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 vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Koloa in May?
What is the average humidity in May in Koloa?
How much does it rain in Koloa in May?
What is the average length of the day in May in Koloa?
What time are sunrise and sunset in May in Koloa?
How long on average sun shines in May in Koloa?
When is the lowest UV index in Koloa?
What is the UV index reading in May in Koloa?
Average temperature in May
Koloa, Tonga
- Average high temperature in May: 26.6°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 May: 25.9°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 May
Koloa, Tonga
- Average pressure in May: 1012.9mbar
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 May
Koloa, Tonga
- Average wind speed in May: 25.4km/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 May
Koloa, Tonga
- Average humidity in May: 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 May
Koloa, Tonga
- Average rainfall in May: 94mm
The wettest month (with the highest rainfall) is January (275mm).
The driest month (with the least rainfall) is August (42mm).
Average rainfall days in May
Koloa, Tonga
- Average rainfall days in May: 18.3 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 May /
Average sunshine in May
Koloa, Tonga
- Average daylight in May: 11h and 1min
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 May: 7h and 0min
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 May
Koloa, Tonga
- Average sunshine days in May: 7.6 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 May
Koloa, Tonga
- Average UV index in May: 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 May
Koloa, Tonga
- Average cloud cover in May: 49
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 May
Koloa, Tonga
- Average visibility in May: 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).
Koloa, Tonga
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