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

With the onset of July, a modest change to a still warm 24.9°C (76.8°F) from June's 25.8°C (78.4°F) is noted in high-temperature. July witnesses an average low-temperature hovering around a comfortable 18.1°C (64.6°F).

Humidity

The average relative humidity in July in Nuku'alofa is 75%.

Rainfall

June and July are months with the least rain when the rain falls for 15 days and typically aggregates up to 95mm (3.74") of rain.

Sea temperature

In Nuku'alofa, the average seawater temperature in July is 24.6°C (76.3°F).
Note: For those with a heightened sensitivity to cold, sunshine, wind, and outside temperature make a big difference in enjoying a swim at 24.6°C (76.3°F). (Olympic swimming regulations state a water temperature of 25°C (77°F) to 28°C (82.4°F).)

Daylight

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

Sunshine

In Nuku'alofa, the average sunshine in July is 4h.

UV index

The months with the lowest UV index are June and July, 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 rays for the ordinary person.
Note: The average daily UV index of 6 in July transforms into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The Sun's UV intensity grows with reflections off sand and water.