Rotuma Weather in September
September in Rotuma typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). September falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Rotuma in September
As part of the rainy season, Rotuma sees around 18 days of rain in September, with an average of 209 mm (8.2 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Rotuma in September
In September, expect high temperatures in Rotuma, with highs of 29°C (84°F) and lows of 26°C (79°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Rotuma in September
The area enjoys a balanced 182 hours of sunlight, ensuring it's neither too rainy nor too sunny.
Average water temperature in September
At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Rotuma.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Fiji, check out our Rotuma's climate page.
Rotuma Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F)
Chance of Rain
61%
Precipitation
209 mm (8.2 in)
Rainy days
18 days
Humidity
81%
Sunshine
182 hours
Percentage Sunshine
Daily Historical Temperatures
44-year average (1976-2025)
Based on our historical records, temperatures in Rotuma typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Historical weather for Rotuma in September
Browse day-by-day weather records for Rotuma spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rotuma historical weather extremes in September
Based on weather observations in Rotuma between 2003 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 27, 2025, with a maximum of 31°C (88°F).
- Rotuma experienced its chilliest September day on September 29, 2004, reaching only 25°C (77°F).
- Rotuma registered its coldest September night on September 11, 2003, with temperatures dropping to 21°C (70°F).
Best Places in Fiji in September
Find out more about the weather in Fiji and which places have the best travel conditions in this month. See all of Fiji in September →
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What to Wear in Rotuma 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). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Rotuma 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 Fiji, check out our Rotuma's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Rotuma climate overview or explore weather in Fiji.
