September
Weather in Tongatapu for September 2025
Your guide to Tongatapu weather in September - trends and predictions
In general, the average temperature in Tongatapu at the beginning of September is 22 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 22.4 °C by the end of September.
The climate of Tongatapu in September is notably wet, with an average of 11 rainy days, and a total of 55.8 mm of precipitation.
Temperatures
Rain 🌧️
19
Dry days
11
Rainy days
0
Snow days
22°/21°
Temperatures
33 km/h
Avg max wind
74 %
Avg humidity
Tongatapu in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2 22° | 3 22° | 4 22° | 5  22° | 6  22° | 7 22° |
| 8 22° | 9 22° | 10 23° | 11 23° | 12 22° | 13 23° | 14  22° |
| 15 23° | 16 23° | 17 23° | 18 22° | 19 22° | 20 22° | 21 22° |
| 22  22° | 23 22° | 24 22° | 25 22° | 26 22° | 27 23° | 28 23° |
| 29 23° | 30 22° |
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Temperatures trend during September in Tongatapu
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 22° /21° | 0.5 mm | 6 | |
| 2 Sept. | Patchy rain possible | 22° /21° | 0.3 mm | 6 | |
| 3 Sept. | Patchy rain possible | 22° /21° | 0.1 mm | 6 | |
| 4 Sept. | Patchy rain possible | 22° /21° | 0.1 mm | 6 | |
| 5 Sept. | Partly cloudy | 22° /21° | 0.1 mm | 6 | |
| 6 Sept. | Cloudy | 22° /21° | 0.4 mm | 6 | |
| 7 Sept. | Patchy rain possible | 22° /21° | 0.7 mm | 6 | |
| 8 Sept. | Light rain shower | 22° /21° | 4.2 mm | 6 | |
| 9 Sept. | Light rain shower | 22° /21° | 9 mm | 6 | |
| 10 Sept. | Light rain shower | 23° /21° | 2.7 mm | 6 | |
| 11 Sept. | Light rain shower | 23° /21° | 8.4 mm | 6 | |
| 12 Sept. | Cloudy | 22° /21° | 11.2 mm | 6 | |
| 13 Sept. | Cloudy | 23° /21° | 0.8 mm | 6 | |
| 14 Sept. | Overcast | 22° /22° | 0.2 mm | 6 | |
| 15 Sept. | Cloudy | 23° /22° | 0.1 mm | 6 | |
| 16 Sept. | Light rain shower | 23° /22° | 0.9 mm | 6 | |
| 17 Sept. | Patchy rain possible | 23° /21° | 5.1 mm | 6 | |
| 18 Sept. | Light rain shower | 22° /21° | 1.8 mm | 6 | |
| 19 Sept. | Patchy rain possible | 22° /21° | 0.5 mm | 6 | |
| 20 Sept. | Light rain shower | 22° /20° | 0.9 mm | 6 | |
| 21 Sept. | Light rain shower | 22° /21° | 0.9 mm | 6 | |
| 22 Sept. | Light drizzle | 22° /21° | 0.6 mm | 6 | |
| 23 Sept. | Light rain shower | 22° /21° | 1.2 mm | 6 | |
| 24 Sept. | Light rain shower | 22° /21° | 0.8 mm | 6 | |
| 25 Sept. | Patchy rain possible | 22° /21° | 0.9 mm | 6 | |
| 26 Sept. | Patchy rain possible | 22° /21° | 0 mm | 6 | |
| 27 Sept. | Patchy rain possible | 23° /21° | 0 mm | 6 | |
| 28 Sept. | Partly cloudy | 23° /22° | 0.1 mm | 6 | |
| 29 Sept. | Light rain shower | 23° /21° | 2.9 mm | 6 | |
| 30 Sept. | Cloudy | 22° /20° | 0.4 mm | 6 | |
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Important Notice
Our weather forecast for Tongatapu in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Tongatapu forecast closer to your planned date for the most up-to-date weather information.
Tongatapu in September - FAQ
What are the expected maximum and minimum temperatures in Tongatapu during September?
During September, expect a variety of temperatures with highs around 22° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Tongatapu during September?
Moderate rainfall is anticipated in Tongatapu during September, with a total of 55.8 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Tongatapu during September?
The average wind speed in Tongatapu during September is 33 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Tongatapu
Explore the daily rainfall trends and prepare for Tongatapus September weather 💧
UV exposure in Tongatapu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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