Swimming in Tongatapu Island in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Tongatapu Island in september 2025.
In september, according to seasonal norms, the sea temperature in Tongatapu Island is:
Minimum: 73°F
Average: 75°F
Maximum: 78°F
Other useful seasonal weather averages in september:
- Outside temperature: 72°F to 74°F
- Most common weather: "Partly Cloudy"
- The wind blows at 14.3mph
- It rains a total of 5.7in, over 5 day(s).
Should we swim in Tongatapu Island in september?
Yes! The water temperature in Tongatapu Island in september is pleasant
Swimming in september is pleasant in Tongatapu Island and the surrounding area. The sea temperature is 75°F on average (min/max: 73°F/78°F), allowing you to swim for a long time and enjoy water sports.
Note also that in september, the climate is good with an average outside temperature of 73°F, 5.7in of precipitation (over 5 days) and 78.53 % humidity.
Water and normal seasonal temperatures in Tongatapu Island in september
| September | |||
| Average sea temperature | 75°F | ||
| Minimum sea temperature | 73°F | ||
| Maximum sea temperature | 78°F | ||
| Average outside temperature | 74°F | ||
| Maximum outside temperature | 76°F | ||
| Minimum outside temperature | 74°F | ||
| Wind speed | 16.8mph | ||
| Wind temperature | 74°F | ||
| Precipitation | 5.7in | ||
| Number of days of rain | 5 jour(s) (18%) | ||
| Humidity | 79% | ||
| Visibility in kilometers | 9.59km | ||
| Cloud cover | 50% | ||
| Our opinion | pleasant swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Tongatapu Island
Swim elsewhere in Tonga in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Nukuʻalofa in september | 76°F | 78°F | pleasant swimming | Haʻapai islands (Lifuka and Foa) in september | 77°F | 80°F | pleasant swimming | Vavaʻu island in september | 79°F | 81°F | pleasant swimming |