Mafia Island weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Mafia Island in September. Check more long-term weather averages for Mafia Island in September before you book your next holiday to Tanzania in 2025/2026.

  • 30°C maximum daytime temperature in September in Mafia Island30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 4 days with some rainfall in September in Mafia Island4
    4 days with some rainfall
  • 19°C minimum night-time temperature in September in Mafia Island19
    19°C min night temperature
  • 12 hours of daylight per day in September in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in September in Mafia IslandH
    High heat & humidity
  • 23 mm monthly rainfall in September in Mafia Island23
    23 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Mafia Island11
    11+ (Extreme) UV index
  • 26°C sea temperature in September in Mafia Island26
    26°C sea temperature

More about Mafia Island

Mafia Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Tanzania

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The September weather guide for Tanzania (Mafia Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

How hot is it in Mafia Island in September?

Daytime temperatures usually reach 30°C in Mafia Island in September with high heat and humidity, falling to 19°C at night.

How sunny is it in Mafia Island in September?

There are normally 9 hours of bright sunshine each day in Mafia Island in September - that's 71% of daylight hours.

How warm is the sea around Mafia Island in September?

The average sea temperature around Mafia Island in September is 26°C.

Does it rain in Mafia Island in September?

There are usually 4 days with some rain in Mafia Island in September and the average monthly rainfall is 23mm.

Mafia Island September sunrise & sunset times

Browse the sunrise and sunset times for Mafia Island in September 2025. Select a month to view Mafia Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:22 18:20
Monday, 15th September 2025 06:14 18:18
Tuesday, 30th September 2025 06:06 18:16

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^