Mahina Weather in September
With daytime temperatures of 26°C (79°F) and nighttime lows of 24°C (75°F), September in Mahina brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 92 mm (3.6 in) falls on average.
Rainfall in Mahina in September
Typically around 10 days of rainfall are expected, averaging 92 mm (3.6 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Mahina in September
Mahina in September has perfect weather. Days reach 26°C (79°F) and nights cool to 24°C (75°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Mahina in September
The days are predominantly sunny, with an estimated total of around 242 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Average water temperature in September
At 26°C (79°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Mahina.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit French Polynesia, check out our Mahina's climate page.
Mahina Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
26°C (79°F)
Water Temperature
26°C (79°F) *
Chance of Rain
33%
Precipitation
92 mm (3.6 in)
Rainy days
10 days
Humidity
76% *
Sunshine
242 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mahina typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Mahina in September
Browse day-by-day weather records for Mahina spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mahina historical weather extremes in September
Based on weather observations in Mahina between 1976 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 15, 1997, with a maximum of 31°C (88°F).
- Mahina experienced its chilliest September day on September 23, 2023, reaching only 23°C (73°F).
- The lowest overnight temperature recorded in September was 17°C (63°F) (September 16, 1976).
Best Places in French Polynesia in September
Find out more about the weather in French Polynesia and which places have the best travel conditions in this month. See all of French Polynesia in September →
perfect weather
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What to Wear in Mahina in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 26°C (79°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Mahina in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit French Polynesia, check out our Mahina's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Mahina climate overview or explore weather in French Polynesia.
