World Resorts Tanzania Mafia Island Weather

Mafia Island 7 Days Forecast

15.09
tue
Day
82°F
W 12 mph
Precip.
24%
Night
75°F
W 11 mph
Precip.
8%
16.09
wed
Day
84°F
W 13 mph
Precip.
17%
Night
72°F
NW 6 mph
Precip.
30%
17.09
thu
Day
82°F
W 9 mph
Precip.
41%
Night
72°F
NW 9 mph
Precip.
70%
18.09
fri
Day
82°F
NW 9 mph
Precip.
36%
Night
73°F
NW 7 mph
Precip.
25%
19.09
sat
Day
79°F
W 8 mph
Precip.
45%
Night
73°F
NW 6 mph
Precip.
41%
20.09
sun
Day
82°F
W 10 mph
Precip.
24%
Night
77°F
W 7 mph
Precip.
25%
21.09
mon
Day
84°F
W 10 mph
Precip.
11%
Night
75°F
W 7 mph
Precip.
8%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 79.9°F. The highest and lowest sea temperatures during the month were 80.4°F and 79.3°F.

Air temperature in Mafia Island, °F

Precipitation total in Mafia Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Mafia Island

Sunniest months:
June 13 days
July 13 days
December 12 days
Warmest months:
March 89.1 °F
December 89.0 °F
February 88.9 °F
Warmest sea temp:
March 85.0 °F
April 84.5 °F
December 84.2 °F
Coldest months:
July 83.0 °F
August 83.4 °F
June 83.6 °F
Rainiest months:
April 16 days
March 11 days
May 11 days
Windiest months:
July 9.5 mph
June 9.0 mph
August 8.8 mph

Mafia Island on a weather map

Mafia Island
+82°F
W 12 mph
Feels like: +86°F
Precip.: 24%
Places in Tanzania:
Name
°F
+68°F
+84°F
+81°F
+82°F
+64°F
+82°F
+82°F
+82°F
+70°F
+81°F
+86°F
+91°F
+84°F
+81°F
+82°F
24 Hours Forecast
Mafia Island
Local time: 11:18
September 15, tuesday
1200
82°F
W
12 mph
1500
82°F
W
12 mph
1800
77°F
W
13 mph
2100
75°F
W
12 mph
September 16, wednesday
0000
75°F
W
11 mph
0300
75°F
NW
10 mph
0600
72°F
NW
6 mph
0900
77°F
NW
11 mph
Units of measurement: °C / °F