Explore Tonga
Tonga is the first country of the international date limit. Being the first to start the new day on a peace of paradise is something you might want to add to your bucket list.
Toula in September sees high daytime temperatures of 26°C (79°F) and nighttime lows of 24°C (75°F). Rainfall is fairly high this month at around 104 mm (4.1 in), so pack a rain jacket to stay dry.
If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Toula - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Toula typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are warm, with lows around 22°C (72°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Toula spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Toula from 2003 through 2026.
Find out more about the weather in Tonga and which places have the best travel conditions in this month. See all of Tonga in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 24°C (75°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Humidity Water Temp
See the full Toula climate overview or explore weather in Tonga.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Explore Tonga
Tonga is the first country of the international date limit. Being the first to start the new day on a peace of paradise is something you might want to add to your bucket list.
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