Port Louis climate

Name: Port Louis
Address: MU

Port Louis is warmest in January, with average highs of 30 °C, and coldest in August, when nights average 20 °C. January is the wettest month (194 mm) and June the driest (30 mm). Figures are 1991–2020 climate normals.

Across a full year Port Louis averages 976 mm of rain and 297 days above 25 °C.

Mauritius · population 155,226 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month January 30 °C
Coldest month August 20 °C
Driest month June 30 mm
Wettest month January 194 mm
Least cloud June 41 % cloud
Hottest on record March 33 °C
Coldest on record September 17 °C
Warmest sea February 28 °C

What to expectPort Louis through the year

Port Louis has a clear annual cycle: average daily highs run from 25 °C in August to 30 °C in January, a swing of 5.2 °C in mean temperature across the year.

Counted across a normal year, 297 days a year reach 25 °C, 36 of them reach 30 °C. The warmest reading in the 1991–2020 record is 33 °C, in March.

Rain is strongly seasonal. January averages 194 mm against 30 mm in June — 6.6 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Port Louis is warmest in February at 28 °C and coldest in August at 24 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	29.5 °C	194 mm	63 %
February	29.5 °C	179 mm	62 %
March	29.2 °C	149 mm	59 %
April	28.5 °C	87 mm	51 %
May	26.9 °C	59 mm	43 %
June	25.3 °C	30 mm	41 %
July	24.5 °C	33 mm	43 %
August	24.6 °C	35 mm	43 %
September	25.5 °C	34 mm	43 %
October	26.8 °C	33 mm	45 %
November	28.2 °C	44 mm	46 %
December	29.3 °C	99 mm	53 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	29.5 °C	25.2 °C	27.2 °C	32.2 °C	21.7 °C	31	10
February	29.5 °C	25.4 °C	27.2 °C	32.5 °C	21.9 °C	28	8
March	29.2 °C	25.1 °C	26.9 °C	32.7 °C	21.3 °C	31	6
April	28.5 °C	24.2 °C	26.1 °C	31.9 °C	21.0 °C	30	2
May	26.9 °C	22.6 °C	24.5 °C	29.7 °C	18.8 °C	29	0
June	25.3 °C	21.0 °C	22.9 °C	28.9 °C	17.6 °C	18	0
July	24.5 °C	20.1 °C	22.1 °C	27.8 °C	17.3 °C	9	0
August	24.6 °C	19.9 °C	22.0 °C	27.8 °C	17.0 °C	11	0
September	25.5 °C	20.1 °C	22.6 °C	29.0 °C	16.9 °C	20	0
October	26.8 °C	21.3 °C	23.8 °C	30.5 °C	17.2 °C	29	0
November	28.2 °C	22.7 °C	25.2 °C	32.7 °C	17.1 °C	30	2
December	29.3 °C	24.3 °C	26.6 °C	32.5 °C	20.9 °C	31	8

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	194 mm	23	13 h/day	63 %	79 %	24 km/h	27.6 °C
February	179 mm	23	13 h/day	62 %	81 %	25 km/h	28.0 °C
March	149 mm	22	12 h/day	59 %	80 %	24 km/h	27.9 °C
April	87 mm	18	12 h/day	51 %	78 %	25 km/h	27.5 °C
May	59 mm	13	11 h/day	43 %	76 %	25 km/h	26.5 °C
June	30 mm	9	11 h/day	41 %	72 %	28 km/h	25.1 °C
July	33 mm	11	11 h/day	43 %	72 %	30 km/h	24.0 °C
August	35 mm	10	11 h/day	43 %	71 %	29 km/h	23.5 °C
September	34 mm	9	12 h/day	43 %	70 %	28 km/h	23.6 °C
October	33 mm	9	13 h/day	45 %	71 %	27 km/h	24.2 °C
November	44 mm	11	13 h/day	46 %	71 %	24 km/h	25.3 °C
December	99 mm	17	13 h/day	53 %	74 %	24 km/h	26.8 °C

Where Port Louis ranks

Ranking	Position	Value
Warmest sea temperatures in Africa in February	30th of 50	28 °C
Warmest sea temperatures in Africa in January	32nd of 50	28 °C
Best beach destinations in Africa in November	33rd of 50	84/100
Best beach destinations in Africa in October	37th of 50	87/100
Best beach destinations in Africa in April	41st of 50	73/100
Best beach destinations in Africa in March	41st of 50	71/100

Planning a trip? See the best time to visit Port Louis.

QuestionsCommon questions about Port Louis’s climate

When is the best time to visit Port Louis?

That depends on what you want, so the honest answer is a comparison rather than a single month. July, August, September sit closest to 20 °C on average, January is the warmest month and June the driest. The month-by-month table above has the full picture.

How hot does Port Louis get?

In January, the warmest month, daily highs average 30 °C. About 36 days a year pass 30 °C. The highest value in the 1991–2020 record is 33 °C.

How cold does it get in winter?

Nights average 20 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Port Louis?

January, averaging 194 mm over 23 days with rain. The driest month is June with 30 mm. The year as a whole averages 976 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Port Louis rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -20.162°, 57.499° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.