July weather forecast
Nuku'alofa, Tonga

July aligns with a similar temperate weather pattern as witnessed in June in Nuku'alofa. A small drop in temperature can be detected, with a high registering at 24.9°C (76.8°F) this month, further substantiating the change in seasons. The pattern of reducing rainfall persists, maintaining the relatively drier conditions. Though daylight hours stabilize, sunshine hours eke out a marginal increase, brightening the longer days. While the sea temperature reaches its annual lowest, it still provides a refreshing swim for the visitors.

Temperature

A minimal variation is noted in Nuku'alofa's average high-temperature at the onset of July, reaching a still warm 24.9°C (76.8°F) from June's 25.8°C (78.4°F). Nuku'alofa, during the nights of July, experiences an average temperature drop to an enjoyable 18.1°C (64.6°F).

Humidity

In July, the average relative humidity in Nuku'alofa is 75%.

Rainfall

The months with the least rainfall are June and July Rain falls for 15 days and accumulates 95mm (3.74") of rain.

Sea temperature

In Nuku'alofa, Tonga, the average seawater temperature in July is 24.6°C (76.3°F).
Note: Given an individual's cold sensitivity, considering factors like sunshine, wind, and air temperature, a brief swim in 24.6°C (76.3°F) water might be pleasurable. (FYI: The standard water temperature for Olympic swimming contests is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In July, the average length of the day is 10h and 59min.
On the first day of the month, sunrise is at 07:18 and sunset at 18:11. On the last day of July, in Nuku'alofa, sunrise is at 07:12 and sunset at 18:22 +13.

Sunshine

The average sunshine in July in Nuku'alofa, Tonga, is 4h.

UV index

June and July, with an average maximum UV index of 6, are months with the lowest UV index in Nuku'alofa. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Attention! UV radiation is markedly stronger with water and sand reflections.