Tonga Weather Forecast
Tonga weather: 69°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Tonga is a country in Oceania. Tonga is a country in Oceania with its capital at Nuku'alofa. It has a population of about 105.000. The capital is Nuku'alofa.
Right now it is 69°F (21°C) in Tonga with overcast. It feels like 64°F. Today runs from 66°F to 71°F. Chance of precipitation is 13%. Sightseeing conditions score 8.9/10 - excellent - go now.
The best time to visit Tonga is April, June, July, August and September. The climate is tropical. February, March and May tend to be the least comfortable months. February is the warmest month with average highs near 85°F, while July is the coldest with lows near 69°F.
In plain terms. Today is slightly cooler than average for August. The forecast high of 71°F is 4°F below the 75°F typical for this month. The best window to be outside is roughly 2 PM to 5 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Tonga today at 8.9/10. Gusts to 36 mph will push high-sided vehicles on exposed roads and bridges.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Tonga
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Tonga right now
Source: Open-Meteo. Updated 9:09 PM, Aug 21 local time.
See the Tonga forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Tonga
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 71° / 66° | 13% | 18 mph | 6 |
| Sat, Aug 22 | 🌦️ Drizzle | 70° / 66° | 41% · 0,1 in | 17 mph | 2 |
| Sun, Aug 23 | 🌦️ Light drizzle | 74° / 68° | 34% · 0,0 in | 17 mph | 7 |
| Mon, Aug 24 | 🌦️ Light drizzle | 75° / 68° | 16% · 0,0 in | 20 mph | 7 |
| Tue, Aug 25 | 🌦️ Light drizzle | 73° / 67° | 35% · 0,0 in | 19 mph | 7 |
| Wed, Aug 26 | 🌦️ Light drizzle | 73° / 68° | 37% · 0,0 in | 21 mph | 7 |
| Thu, Aug 27 | 🌦️ Light drizzle | 74° / 68° | 40% · 0,0 in | 23 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 72° / 69° | 40% | 24 mph | 7 |
| Sat, Aug 29 | 🌦️ Light showers | 71° / 69° | 32% · 0,8 in | 28 mph | 4 |
| Sun, Aug 30 | ⛈️ Violent showers | 73° / 70° | 25% · 4,2 in | 29 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 75° / 72° | 17% · 0,0 in | 21 mph | 7 |
| Tue, Sep 1 | 🌦️ Light drizzle | 76° / 70° | 22% · 0,1 in | 23 mph | 1 |
| Wed, Sep 2 | 🌦️ Light drizzle | 74° / 70° | 24% · 0,1 in | 24 mph | 1 |
| Thu, Sep 3 | 🌦️ Light drizzle | 74° / 71° | 14% · 0,1 in | 26 mph | 7 |
| Fri, Sep 4 | 🌦️ Drizzle | 74° / 71° | 24% · 0,2 in | 26 mph | 7 |
| Sat, Sep 5 | 🌧️ Heavy drizzle | 76° / 71° | 30% · 0,3 in | 22 mph | 8 |
Climate in Tonga month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 85° | 77° | 6,9 in | ★★★☆☆ |
| February | 85° | 78° | 8,0 in | ★★★☆☆ |
| March | 84° | 77° | 13,5 in | ★★☆☆☆ |
| April | 83° | 77° | 2,8 in | ★★★★☆ |
| May | 80° | 74° | 8,2 in | ★★★☆☆ |
| June | 77° | 71° | 2,7 in | ★★★★☆ |
| July | 75° | 69° | 3,0 in | ★★★★☆ |
| August | 75° | 69° | 3,5 in | ★★★★☆ |
| September | 76° | 70° | 2,2 in | ★★★★☆ |
| October | 78° | 71° | 4,6 in | ★★★★☆ |
| November | 80° | 73° | 8,1 in | ★★★☆☆ |
| December | 83° | 76° | 5,6 in | ★★★★☆ |
Climate type: Tropical. Source: Open-Meteo archive (ERA5).
Weather map for Tonga
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Tonga
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Tonga
Go in April, June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: February, March and May - expect the least comfortable mix of heat, cold or rain.
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 69°F (21°C) with overcast. Humidity is 55% and wind is 14 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 9:09 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 21, 2026 at 9:09 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
