Measurements:
°C
°F
Mafia Island
76°F
N 11 mph
Feels like: 80°F
Precip: 16%
World Resorts Tanzania Mafia Island Weather

Mafia Island Sea Water Temperature

Current Sea Water Temperature:
+83.2°F
Maximum Sea Water Temperature in July: 84.4°F
Minimum Sea Water Temperature in July: 80.0°F
Average water temperature in July: 82.4°F

Sea Water Temperature for the Last 10 Days:

July 25 83.2°F July 20 82.2°F
July 24 83.0°F July 19 82.6°F
July 23 83.4°F July 18 82.2°F
July 22 82.6°F July 17 81.8°F
July 21 82.4°F July 16 82.2°F

When is the Warmest Sea for Mafia Island?

According to our data for the last three years for Mafia Island the highest average sea water temperature was in March, April and December.

Average Water Temperature by Month, °F

Sea Water Temperature in March

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Mafia Island was 88.4°F. The maximum and minimum values were 87.0°F and 89.2°F respectively.

Sea Water Temperature in April

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Mafia Island was 88.5°F. The maximum and minimum values were 87.4°F and 89.6°F respectively.

Sea Water Temperature in December

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Mafia Island was 88.2°F. The maximum and minimum values were 87.2°F and 89.4°F respectively.

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 86.8 °F
August 87.2 °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

Mafia Island on the Weather Map

Tanzania Resorts:
NAME
Arusha +56
Dar es Salaam +76
Dodoma +62
Kilimanjaro +58
Lake Manyara +62
Mafia Island +76
Ngorongoro +52
Nungwi +76
Pemba +78
Selous +72
Serengeti +72
Tanga +72
Tanganyika +68
Tarangire +62
Zanzibar +76
24 Hours Weather Forecast
Mafia Island
Local time: 04:21
26 jul, sunday
0600 76°F
N
10 mph
0900 80°F
N
11 mph
1200 86°F
NW
15 mph
1500 84°F
NW
15 mph
1800 80°F
NW
12 mph
2100 78°F
NW
10 mph
27 jul, monday
0000 78°F
NW
14 mph
0300 78°F
NW
13 mph