Tonga weather in August - temperature, rain and is it a good time to visit?

August is one of the best months for a holiday in Tonga.
Daytime
24°
Night
19°
🌊 Sea
25°
☀️ Day length
11 h 26 min
Chance of rain
48%
Thunder days
1%
Snow days
1%
Humid days
90%
WEATHER THROUGH THE YEARTonga - August vs the year30°24°30°24°29°24°28°22°27°22°26°21°25°19°24°19°25°19°26°20°28°22°28°23°CHANCE OF RAIN (%)506767465454524841404548JanFebMarAprMayJunJulAugSepOctNovDecWARMESTJan (30°)COLDESTAug (24°)DRIESTOct (40%)WETTESTFeb (67%)world-prices.com · 2026-07-08 · ★ best months
In August, Tonga averages about 24° during the day and 19° at night. There's a moderate chance of rain (about 48%). The sea is around 25°C - warm for swimming.

Tonga weather all year - average temperatures and rain

MonthDayNightChance of rain
January 30℃24℃50%
February 30℃24℃67%
March 29℃24℃67%
April 28℃22℃46%
May ★ 27℃22℃54%
June ★ 26℃21℃54%
July ★ 25℃19℃52%
August 24℃19℃48%
September ★ 25℃19℃41%
October ★ 26℃20℃40%
November ★ 28℃22℃45%
December 28℃23℃48%
★ - months most often recommended for travel
Travelling soon? Check the live 14-day weather forecast for Tonga.

Tonga weather - other months

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember