Nuku'alofa weather by month & the best time to visit
🇹🇴 Tonga · beach resort · tropical rainforest climate
The best time to visit Nuku'alofa is July — its sunniest month (Sunshine Score 82/100), with August and September close behind. Nuku'alofa averages about 2,598 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 67 mm of rain in July.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 2,598
- Sunniest month
- July
- Peak score
- 82/100
- Rain / year
- 1,518 mm
- Midday UV at peak
- 13 (extreme)
- Sea at warmest
- 28°C / 82°F
- Population
- 22k
- Elevation
- 31 m

When is the best time to visit Nuku'alofa?
For sunshine, the best time to visit Nuku'alofa is July, then August and September. The dullest month is January (67/100, 197 mm of rain). The full month-by-month picture is in the table below.
How sunny is Nuku'alofa?
Nuku'alofa gets a lot of sun: around 2,598 hours a year. Conditions barely change through the year — only 15 Sunshine Score points separate July from January. It ranks #5 of 5 destinations in Tonga for annual sunshine, below the national median of 2,663 hours. The year's 1,518 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 67 | 27° / 81°F | 26° / 79°F | 197 mm | 13 | 28° / 82°F |
| February | 67 | 27° / 81°F | 26° / 79°F | 197 mm | 12 | 28° / 82°F |
| March | 67 | 27° / 81°F | 26° / 79°F | 197 mm | 11 | 28° / 82°F |
| April | 67 | 26° / 79°F | 26° / 79°F | 170 mm | 8 | 27° / 81°F |
| May | 74 | 25° / 77°F | 24° / 75°F | 112 mm | 6 | 27° / 81°F |
| June | 76 | 24° / 75°F | 23° / 73°F | 100 mm | 5 | 26° / 79°F |
| July | 82 | 23° / 73°F | 22° / 72°F | 67 mm | 6 | 24° / 75°F |
| August | 79 | 23° / 73°F | 22° / 72°F | 81 mm | 7 | 24° / 75°F |
| September | 79 | 23° / 73°F | 22° / 72°F | 83 mm | 8 | 24° / 75°F |
| October | 78 | 24° / 75°F | 23° / 73°F | 88 mm | 10 | 25° / 77°F |
| November | 74 | 25° / 77°F | 24° / 75°F | 111 mm | 11 | 26° / 79°F |
| December | 73 | 26° / 79°F | 25° / 77°F | 115 mm | 12 | 27° / 81°F |
Sea temperature in Nuku'alofa by month
The sea off Nuku'alofa is warmest in January at around 28°C / 82°F, and coolest in July at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Nuku'alofa on the interactive sunshine globe →
Nearby places for sunshine
- Suva Fiji · 748 km · best in Jul · 2,348 h sun/yr
- Nadi Fiji · 868 km · best in Jul · 2,625 h sun/yr
- Port Vila Vanuatu · 1,776 km · best in Aug · 2,538 h sun/yr
- Nouméa New Caledonia · 1,900 km · best in Sep · 2,762 h sun/yr
- Nouméa (La Tontouta) New Caledonia · 1,927 km · best in Sep · 2,761 h sun/yr
- Luganville Vanuatu · 1,965 km · best in Aug · 2,396 h sun/yr
Nearest destinations
- Eua Island Tonga · 25 km · 2,602 h sun/yr · best in Jul
- Lifuka Tonga · 183 km · 2,663 h sun/yr · best in Jul
- Vava'u Tonga · 320 km · 2,667 h sun/yr · best in Jul
- Lakeba Fiji · 512 km · 2,640 h sun/yr · best in Jul
- Cicia Fiji · 587 km · 2,580 h sun/yr · best in Jul
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