Mauritius weather in September
Mauritius averages 26°C by day and 20°C at night in September, with the sea at 24°C and about 23 mm of rain in the month. It warms up by about 2°C into October.
Day
26°C
Night
20°C
Sea
24°C
Rain
23 mm
Flight from London
12h
What September feels like
September is hot in Mauritius: proper beach weather.
The sea is warm at 24°C: comfortable for long swims.
It is dry: only about 23 mm of rain in the month.
That is 6°C warmer than an average September day in London.
Of the 56 sun destinations we track, Mauritius is the #50 warmest in September.
Going to Mauritius in September?
Share the TikToks and Instagram Reels you've saved for Mauritius to Dream Trip. It finds the places, pins them on a map and builds your days around them.
Want it warmer in September?
These are hotter than Mauritius this month for at most an hour and a half more flying:
Mauritius weather by month
September is highlighted. Compare with August and October, or see the full year in Mauritius.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 30°C | 25°C | 28°C | 197 mm |
| February | 30°C | 25°C | 28°C | 163 mm |
| March | 30°C | 25°C | 29°C | 138 mm |
| April | 29°C | 24°C | 28°C | 80 mm |
| May | 28°C | 22°C | 28°C | 44 mm |
| June | 26°C | 21°C | 26°C | 28 mm |
| July | 25°C | 20°C | 25°C | 27 mm |
| August | 26°C | 20°C | 24°C | 23 mm |
| September | 26°C | 20°C | 24°C | 23 mm |
| October | 28°C | 21°C | 25°C | 42 mm |
| November | 29°C | 22°C | 27°C | 52 mm |
| December | 30°C | 24°C | 28°C | 110 mm |
Mauritius in September: quick answers
Is Mauritius hot in September?
September is hot in Mauritius: proper beach weather. Average highs are 26°C and lows 20°C.
Can you swim in Mauritius in September?
The sea is warm at 24°C: comfortable for long swims.
Does it rain in Mauritius in September?
It is dry: only about 23 mm of rain in the month.
What is the warmest month in Mauritius?
January, at an average high of 30°C. The coolest is July at 25°C.
How long is the flight to Mauritius from the UK?
About 12h direct from London, estimated from the 9,748 km distance. Check your airline for exact times.
Still choosing? See where is hot in September for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in September from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. Rain is the average monthly total. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Mauritius in September?
Save the restaurants, beaches and views you find on TikTok and Instagram for Mauritius straight to a map, then let Dream Trip turn them into a day-by-day plan.
