Tonga Weather Forecast
Tonga weather: 68°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Tonga?
Yes - rain is likely in Tonga today.
A 62% chance means rain is expected over most of the area. Plan indoor alternatives.
Over the next 7 days, about 2,3 in of precipitation is forecast, with the wettest days falling on Tue, Thu, Fri, Sat, Sun and Mon.
The next 7 days carry about 2.8 times a normal week's rain for August (2,3 in against 0,8 in).
16-day forecast for Tonga
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | 🌦️ Drizzle | 73° / 68° | 62% · 0,1 in | 20 mph | 7 |
| Wed, Aug 26 | 🌦️ Light drizzle | 71° / 66° | 18% · 0,1 in | 21 mph | 5 |
| Thu, Aug 27 | 🌧️ Heavy drizzle | 74° / 69° | 73% · 0,2 in | 23 mph | 7 |
| Fri, Aug 28 | 🌦️ Light showers | 75° / 70° | 45% · 0,3 in | 24 mph | 6 |
| Sat, Aug 29 | 🌧️ Showers | 77° / 71° | 68% · 0,9 in | 24 mph | 8 |
| Sun, Aug 30 | 🌦️ Light showers | 79° / 71° | 70% · 0,4 in | 18 mph | 7 |
| Mon, Aug 31 | 🌦️ Drizzle | 76° / 70° | 48% · 0,3 in | 7 mph | 1 |
| Tue, Sep 1 | 🌧️ Showers | 71° / 69° | 41% · 0,7 in | 12 mph | 7 |
| Wed, Sep 2 | 🌦️ Light drizzle | 74° / 67° | 18% · 0,1 in | 15 mph | 7 |
| Thu, Sep 3 | ☁️ Overcast | 75° / 68° | 20% | 14 mph | 5 |
| Fri, Sep 4 | 🌦️ Light drizzle | 77° / 68° | 20% · 0,2 in | 9 mph | 4 |
| Sat, Sep 5 | 🌦️ Drizzle | 76° / 68° | 30% · 0,1 in | 9 mph | 4 |
| Sun, Sep 6 | 🌦️ Drizzle | 78° / 68° | 31% · 0,3 in | 11 mph | 1 |
| Mon, Sep 7 | 🌦️ Light drizzle | 75° / 68° | 33% · 0,1 in | 15 mph | 1 |
| Tue, Sep 8 | 🌤️ Mainly clear | 76° / 69° | 26% | 18 mph | 8 |
| Wed, Sep 9 | 🌦️ Light drizzle | 72° / 69° | 23% · 0,0 in | 23 mph | 8 |
What this means for Tonga
Today is about average for August. The forecast high of 73°F is in line with the 75°F typical for this month.
A 62% chance means rain is expected over most of the area. Plan indoor alternatives.
Gusts to 36 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Southern Hemisphere, so peak summer falls in December to February.
The gap between the warmest and coldest month averages 42°F - an unusually even climate through the year.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- Insect repellent and quick-dry fabrics for humidity
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 36 mph.
- If your dates are flexible, avoid February, March and May - historically the least comfortable months here.
See the Tonga forecast by time range
Tonga weather - more answers
Explore Tonga
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Tonga?
Tonga is a country in Oceania. Its coordinates are -21.1393, -175.2049. It lies in Oceania.
What is the weather like in Tonga right now?
It is currently 68°F (20°C) with clear. Humidity is 73% and wind is 20 mph.
When is the best time to visit Tonga?
April, June, July, August and September offer the most comfortable conditions in Tonga, which has a tropical climate. February, March and May are usually the hardest months for outdoor plans.
What time zone is Tonga in?
Tonga observes Pacific/Tongatapu (UTC+13:00). The local time is 9:23 PM.
How many people live in Tonga?
Tonga has a population of approximately 105.000.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (countries-v1) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 9:23 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
