Tonga Weather Forecast
Tonga weather: 71°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Tonga
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌦️ Light drizzle | 73° / 68° | 45% · 0,0 in | 18 mph | 7 |
| Mon, Aug 24 | 🌦️ Light drizzle | 73° / 67° | 18% · 0,1 in | 18 mph | 6 |
| Tue, Aug 25 | 🌦️ Drizzle | 73° / 67° | 67% · 0,1 in | 21 mph | 5 |
| Wed, Aug 26 | 🌦️ Drizzle | 73° / 67° | 34% · 0,1 in | 20 mph | 7 |
| Thu, Aug 27 | 🌦️ Light showers | 73° / 67° | 65% · 0,5 in | 24 mph | 5 |
| Fri, Aug 28 | 🌦️ Light showers | 75° / 70° | 52% · 0,3 in | 23 mph | 3 |
| Sat, Aug 29 | 🌦️ Light showers | 75° / 70° | 57% · 0,9 in | 23 mph | 7 |
| Sun, Aug 30 | 🌦️ Drizzle | 78° / 71° | 51% · 0,3 in | 13 mph | 7 |
| Mon, Aug 31 | 🌦️ Drizzle | 78° / 71° | 31% · 0,1 in | 9 mph | 1 |
| Tue, Sep 1 | 🌦️ Light drizzle | 73° / 68° | 24% · 0,0 in | 19 mph | 2 |
| Wed, Sep 2 | ☁️ Overcast | 73° / 66° | 14% | 18 mph | 6 |
| Thu, Sep 3 | 🌦️ Light drizzle | 73° / 67° | 14% · 0,0 in | 16 mph | 7 |
| Fri, Sep 4 | ⛅ Partly cloudy | 75° / 67° | 20% | 14 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 74° / 67° | 20% · 0,0 in | 19 mph | 5 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 74°F against a August normal of 75°F - right on average.
The next 7 days carry about 2.4 times a normal week's rain for August (2,0 in against 0,8 in).
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 45% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
Gusts to 37 mph will push high-sided vehicles on exposed roads and bridges.
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
- A packable rain shell - 5 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 37 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 71°F (22°C) with partly cloudy. Humidity is 59% and wind is 18 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 3:58 AM.
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 24, 2026 at 3:58 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
