Best time to visit Nuku‘alofa
The best time to visit Nuku‘alofa is July–August, judged on twenty years of weather records and the events worth going for.
Nuku‘alofa, Tongatapu, Tonga
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 26.6 °C / 80 °F | 25.5 °C / 78 °F | 251 mm / 9.9 in | neither best nor good |
| February | 27.1 °C / 81 °F | 25.8 °C / 78 °F | 273 mm / 10.8 in | neither best nor good |
| March | 26.9 °C / 80 °F | 25.7 °C / 78 °F | 287 mm / 11.3 in | neither best nor good |
| April | 26.3 °C / 79 °F | 25.1 °C / 77 °F | 193 mm / 7.6 in | neither best nor good |
| May | 25 °C / 77 °F | 23.9 °C / 75 °F | 135 mm / 5.3 in | good month |
| June | 24.1 °C / 75 °F | 23.1 °C / 74 °F | 106 mm / 4.2 in | good month |
| July | 23.2 °C / 74 °F | 22.1 °C / 72 °F | 84 mm / 3.3 in | best month |
| August | 22.9 °C / 73 °F | 21.8 °C / 71 °F | 87 mm / 3.4 in | best month |
| September | 23.1 °C / 74 °F | 22 °C / 72 °F | 110 mm / 4.3 in | good month |
| October | 23.8 °C / 75 °F | 22.7 °C / 73 °F | 127 mm / 5 in | good month |
| November | 24.8 °C / 77 °F | 23.7 °C / 75 °F | 109 mm / 4.3 in | good month |
| December | 25.8 °C / 78 °F | 24.7 °C / 76 °F | 121 mm / 4.8 in | good month |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: good
- JJune: good
- JJuly: best
- AAugust: best
- SSeptember: good
- OOctober: good
- NNovember: good
- DDecember: good
- Best
- July–August
- Good
- May–June, September–December
Why these months
May · good
In its favour: feels like (high) 25.8 °C / 78 °F, average daily high 25 °C / 77 °F, share of daylight that is sunny 83%, days with heavy rain 3.5 days, wet days 11.9 days, relative humidity 76%.
Against: precipitation 135 mm / 5.3 in, average daily low 23.9 °C / 75 °F.
June · good
In its favour: feels like (high) 24.5 °C / 76 °F, average daily high 24.1 °C / 75 °F, share of daylight that is sunny 81%, precipitation 106 mm / 4.2 in, days with heavy rain 2.9 days, wet days 9.3 days, relative humidity 74%.
Against: average daily low 23.1 °C / 74 °F.
July · best
In its favour: feels like (high) 22.9 °C / 73 °F, average daily high 23.2 °C / 74 °F, share of daylight that is sunny 81%, precipitation 84 mm / 3.3 in, days with heavy rain 2.1 days, wet days 8.1 days, relative humidity 72%.
Against: average daily low 22.1 °C / 72 °F.
August · best
In its favour: feels like (high) 22.7 °C / 73 °F, average daily high 22.9 °C / 73 °F, share of daylight that is sunny 80%, precipitation 87 mm / 3.4 in, wet days 8.3 days, days with heavy rain 2.4 days, relative humidity 73%, average daily low 21.8 °C / 71 °F.
September · good
In its favour: feels like (high) 23.5 °C / 74 °F, average daily high 23.1 °C / 74 °F, share of daylight that is sunny 81%, precipitation 110 mm / 4.3 in, days with heavy rain 3 days, wet days 10.6 days, relative humidity 75%, average daily low 22 °C / 72 °F.
October · good
In its favour: feels like (high) 24.7 °C / 76 °F, average daily high 23.8 °C / 75 °F, share of daylight that is sunny 81%, days with heavy rain 2.9 days, precipitation 127 mm / 5 in, wet days 10 days, relative humidity 76%.
Against: average daily low 22.7 °C / 73 °F.
November · good
In its favour: feels like (high) 26.9 °C / 80 °F, average daily high 24.8 °C / 77 °F, share of daylight that is sunny 85%, precipitation 109 mm / 4.3 in, days with heavy rain 3.2 days, wet days 10.7 days.
Against: average daily low 23.7 °C / 75 °F, relative humidity 79%.
December · good
In its favour: feels like (high) 28.4 °C / 83 °F, average daily high 25.8 °C / 78 °F, share of daylight that is sunny 86%, precipitation 121 mm / 4.8 in, days with heavy rain 3.5 days.
Against: average daily low 24.7 °C / 76 °F, wet days 13.1 days, relative humidity 79%.
Beach and swimming
Hot, dry and sunny. Penalises the monsoon hard.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: neither
- NNovember: good
- DDecember: neither
- Good
- November
Why these months
November · good
In its favour: share of daylight that is sunny 85%, average daily high 24.8 °C / 77 °F, feels like (high) 26.9 °C / 80 °F, days with heavy rain 3.2 days, average daily low 23.7 °C / 75 °F, wind (daily max) 29 km/h / 18 mph.
Against: precipitation 109 mm / 4.3 in, wet days 10.7 days.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Whakapapa, 2198 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 30 °C | 30.6 °C | 30.3 °C | 28.2 °C | 25.8 °C | 24.5 °C | 22.9 °C | 22.7 °C | 23.5 °C | 24.7 °C | 26.9 °C | 28.4 °C |
| Days with heavy rain | 7.2 days | 7.5 days | 7.5 days | 4.5 days | 3.5 days | 2.9 days | 2.1 days | 2.4 days | 3 days | 2.9 days | 3.2 days | 3.5 days |
| Time rain usually falls | 1 am | 12 am | 10 am | 11 pm | 7 am | 4 am | 3 pm | 2 am | 3 am | 10 pm | 12 pm | 4 am |
| Sunshine per day | 10.6 h | 10 h | 9.7 h | 9.7 h | 9.2 h | 8.8 h | 8.9 h | 9.2 h | 9.7 h | 10.2 h | 11.2 h | 11.5 h |
| Relative humidity | 82% | 82% | 82% | 78% | 76% | 74% | 72% | 73% | 75% | 76% | 79% | 79% |
Sea temperature
Averaged over a shorter period (2022–2025) than the twenty-year averages above.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature 2022–2025 | 28.2 °C | 28.4 °C | 28.1 °C | 27.5 °C | 26.6 °C | 25.6 °C | 24.5 °C | 23.8 °C | 24.1 °C | 24.3 °C | 25.7 °C | 27.1 °C |
| Sea temperature (daily max) 2022–2025 | 28.3 °C | 28.6 °C | 28.2 °C | 27.6 °C | 26.6 °C | 25.7 °C | 24.6 °C | 23.9 °C | 24.2 °C | 24.4 °C | 25.9 °C | 27.3 °C |
- Very cold 10 °C or less
- Cold 10 to 15 °C
- Cool 15 to 20 °C
- Comfortable 20 to 25 °C
- Warm 25 to 28 °C
- Very warm over 28 °C
The words describe how the water feels to swim in. They are ours, not an official standard.
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 5.8 µg/m³ | 6.9 µg/m³ | 6.2 µg/m³ | 7.7 µg/m³ | 7.4 µg/m³ | 6.8 µg/m³ | 7.3 µg/m³ | 8.6 µg/m³ | 9.4 µg/m³ | 9.8 µg/m³ | 7.4 µg/m³ | 6.7 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 7.7 µg/m³ | 9.1 µg/m³ | 8.2 µg/m³ | 9.5 µg/m³ | 9.4 µg/m³ | 8.6 µg/m³ | 9.1 µg/m³ | 10.8 µg/m³ | 11.4 µg/m³ | 12.2 µg/m³ | 9.2 µg/m³ | 8.5 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.