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Climate · Port Louis

Port Louis in September

Warm and mostly dry, as the days lengthen.

Typical weather, averaged over 30 years

September in Port Louis is warm: highs near 81°F, lows near 67°F. Rain falls on about two days a week, more often as the month goes on, and the days lengthen by 25 minutes from the first week to the last.September in Port Louis is warm: highs near 27°C, lows near 19°C. Rain falls on about two days a week, more often as the month goes on, and the days lengthen by 25 minutes from the first week to the last.

High
81°F27°Caverage
Low
67°F19°Caverage
Wet days
2a week · 27% of days
Daylight
12h 01mon average

Is September a good time to visit Port Louis?

Yes. September is one of Port Louis's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 81°F in September, against 79°F to 88°F through the year.Highs near 27°C in September, against 26°C to 31°C through the year.

Chance of a wet day

27% of days in September, against 25% to 82% through the year.

Cloud cover

24% cover in September, against 24% to 64% through the year.

Daylight

12h 01m in September, against 10h 56m to 13h 20m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August79°26°low 67°low 19°2 wet days a weekRain on about two days a week.
  2. September81°27°low 67°low 19°2 wet days a weekRain on about two days a week.
  3. October83°28°low 69°low 21°2 wet days a weekRain on about two days a week.

Where Port Louis sits, in September

Indian/Mauritius
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:07 AMsets 6:04 PM
Above the sea
10 mlow-lying
Latitude
20.2°Ssouthern hemisphere
Nearest of ours
Centre de Flacq23 km east

The land around Port Louis, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Mauritius in September

high · low · wet days
See September on the planning mapThe whole year in Port Louis

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Port Louis. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (10 m) against the climate model's (258 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (10 m) against the climate model's (258 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.