Temperature
Pleasant by day, warm at night.
78°Ftypical September high
Typical range
September climate
September in Mafia Island
Tanzania · Africa
Warm coastal days and plenty of sun. Humid air is the main drawback.
One of the best months here
Daytime high
78°F
Lows around 76°F
Rain
A few rainy days
Sun
11.5 h/day
Air feel
Humid
Sea temp
78°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
A few rainy days. About 4 wet days, the lowest monthly average.
13%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.6 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
100%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 78° and nights feel near 76°.
ComfortableWarmHotNight hours
Clear sky
Mostly clear skies this month.
76%September Clear sky
Clear skyCloud
Wind pattern
September's typical breeze keeps the air from feeling as stagnant.
13 mphSeptember Breezy
Sea temperature
78°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September stays around 77°F through the day and night.
Avg temp Typical range
Morning77°F
Rain15%
Cloud31%
Humid airVery high
Sun intensityModerate
Midday77°F
Rain10%
Cloud27%
Humid airVery high
Sun intensityStrong
Late afternoon77°F
Rain2%
Cloud22%
Humid airVery high
Sun intensityStrong
Early evening77°F
Rain1%
Cloud18%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 83 | 81 | 3.9 | 11 | 11.5 | 80 | 84 |
| Feb | 83 | 81 | 1.7 | 7 | 11.3 | 79 | 84 |
| Mar | 83 | 80 | 7.7 | 16 | 10.4 | 81 | 85 |
| Apr | 82 | 79 | 20.3 | 28 | 10.0 | 84 | 85 |
| May | 81 | 79 | 8.8 | 17 | 10.5 | 80 | 83 |
| Jun | 80 | 77 | 2.5 | 14 | 10.8 | 77 | 81 |
| Jul | 78 | 76 | 1.2 | 10 | 10.9 | 77 | 79 |
| Aug | 77 | 76 | 0.7 | 8 | 11.0 | 79 | 78 |
| Sep | 78 | 76 | 0.5 | 4 | 11.6 | 79 | 78 |
| Oct | 79 | 78 | 1.3 | 7 | 11.8 | 80 | 80 |
| Nov | 81 | 79 | 3.2 | 11 | 11.7 | 81 | 82 |
| Dec | 83 | 80 | 3.2 | 15 | 11.8 | 81 | 84 |
Similar climates
Similar
Similar travel stylePort DouglasAustraliaSimilar travel styleSavusavuFijiSimilar travel stylePort LouisMauritiusSimilar travel styleFakaravaFrench Polynesia
Want a side-by-side climate view? Compare Mafia Island with Port Douglas.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology