September weather forecast
Funafuti, Tuvalu

In September, Funafuti, Tuvalu experiences another slip in rain volume, now down to 231mm (9.09"). As we advance into the second part of the year, the weather conditions continue to favour spending time outdoors. Maintained sea temperature of around 29.1°C (84.4°F) and an increased daylight of 12.1 hours suggest swimwear as a dressing norm. Sunshine dominates the days, encouraging touring and exploration activities. Despite marginal changes in weather parameters like UV index, weather stays largely consistent.

Temperature

Funafuti sees its lowest temperatures during February, March, June through September, with an average high-temperature of 30°C (86°F).

Rainfall

September is the month with the least rainfall in Funafuti. Rain falls for 19 days and accumulates 231mm (9.09") of precipitation.

Sea temperature

August and September, with an average sea temperature of 29.1°C (84.4°F), are months with the coldest seawater in Funafuti.
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September in Funafuti, sunrise is at 06:04 and sunset at 18:01. On the last day of the month, sunrise is at 05:48 and sunset at 17:58 +12.

Sunshine

In Funafuti, the average sunshine in September is 19h.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 12 during September translates into the following directions:
Take every vital safeguard, as unprotected skin and eyes may suffer burns rapidly. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Apply and frequently reapply a broad-spectrum SPF 30+ sunscreen after every two hours, or immediately after a swim or outdoor exercise. Stay cautious! Sand and water reflections increase UV radiation potency.