Measurements:
°C
°F
Mafia Island
76°F
NW 8 mph
Feels like: 80°F
Precip: 29%
World Resorts Tanzania Mafia Island Weather

7 Day Weather Forecast

09.08
tue
DAY
82°F
NW 9 mph
precip
20%
NIGHT
76°F
NW 8 mph
precip
29%
09.09
wed
DAY
88°F
NW 13 mph
precip
9%
NIGHT
78°F
NW 11 mph
precip
8%
09.10
thu
DAY
88°F
NW 9 mph
precip
2%
NIGHT
78°F
NW 8 mph
precip
9%
09.11
fri
DAY
82°F
NW 9 mph
precip
56%
NIGHT
74°F
NW 6 mph
precip
42%
09.12
sat
DAY
86°F
W 9 mph
precip
5%
NIGHT
78°F
NW 8 mph
precip
15%
09.13
sun
DAY
88°F
W 8 mph
precip
2%
NIGHT
78°F
NW 9 mph
precip
8%
09.14
mon
DAY
88°F
NW 7 mph
precip
11%
NIGHT
78°F
NW 9 mph
precip
23%

Mafia Island Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mafia Island was 26.3°F. The maximum and minimum values were 25.9°F and 26.7°F respectively.

Mafia Island on the Weather Map

Best Time to Visit Mafia Island
The most sunny months:
June 13 days
July 13 days
December 12 days
The most warm months:
March 93.4 °F
December 93.3 °F
February 93.2 °F
Warmest sea temperature:
March 88.9 °F
April 88.3 °F
December 88.0 °F
The most cold months:
July 86.7 °F
August 87.1 °F
June 87.3 °F
The most rainy months:
April 16 days
March 11 days
May 11 days
The most windy months:
July 9 mph
June 9 mph
August 9 mph