Port Louis climate
Port Louis (Mauritius) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 25 °C78 °F, and about 676 mm27 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Port Louis climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2883 | 2780 | 2781 | 1285.0 |
| Feb | 2983 | 2781 | 2882 | 1164.5 |
| Mar | 2883 | 2780 | 2882 | 1224.8 |
| Apr | 2882 | 2679 | 2780 | 672.6 |
| May | 2679 | 2577 | 2678 | 411.6 |
| Jun | 2577 | 2374 | 2475 | 291.1 |
| Jul | 2475 | 2272 | 2374 | 261.0 |
| Aug | 2475 | 2272 | 2373 | 210.8 |
| Sep | 2475 | 2272 | 2374 | 240.9 |
| Oct | 2577 | 2373 | 2475 | 291.1 |
| Nov | 2679 | 2476 | 2577 | 291.2 |
| Dec | 2882 | 2678 | 2780 | 441.7 |
| Year | 2983 | 2272 | 2578 | 67627 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 79% | 60% | 6.6 | 13:13 |
| Feb | 79% | 58% | 6.3 | 12:47 |
| Mar | 78% | 57% | 5.7 | 12:15 |
| Apr | 78% | 53% | 5.0 | 11:39 |
| May | 75% | 50% | 4.2 | 11:10 |
| Jun | 73% | 54% | 3.8 | 10:55 |
| Jul | 73% | 57% | 4.0 | 11:01 |
| Aug | 73% | 56% | 4.7 | 11:26 |
| Sep | 73% | 51% | 5.7 | 12:01 |
| Oct | 75% | 49% | 6.5 | 12:36 |
| Nov | 75% | 48% | 7.0 | 13:06 |
| Dec | 76% | 50% | 7.1 | 13:21 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Port Louis is like
The warmest month is February, with an average high of 29 °C83 °F and a low of 27 °C81 °F. The coldest is August, when highs average 24 °C75 °F and lows 22 °C72 °F. Seasonal differences are small — just 4.8 °C8.7 °F between the warmest and the coolest month.
Annual precipitation is moderate at about 676 mm27 in. The wettest three-month stretch is January–March, which brings 54% of the annual total. The wettest month is January (128 mm5.0 in), the driest is August (21 mm0.8 in).
Relative humidity ranges from 73% in August to 79% in January. The clearest skies (lowest average cloud amount, 48%) are typical of November. Average wind speed near the ground ranges from 18 km/h (11 mph) in November to 24 km/h (15 mph) in June. Daylight lasts from about 10.9 hours in June to 13.3 hours in December.
Best time to visit Port Louis
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–December: average highs of 24 °C75 °F to 28 °C82 °F with 21 mm0.8 in to 67 mm2.6 in of precipitation per month.
The most challenging month is January, which is humid (79% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Port Louis
- Wetter months (January–April) — highs 2882 to 29 °C83 °F, lows 2679 to 27 °C81 °F, about 108 mm4.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (May–December) — highs 2475 to 28 °C82 °F, lows 2272 to 26 °C78 °F, about 30 mm1.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Port Louis compares
Places in other countries with the most similar temperature and rainfall pattern: Saint-Paul (Reunion, BSh), Saint-Denis (Reunion, Aw) and Vilankulo (Mozambique, BSh).
The same NASA POWER grid cell also contains Beau Bassin-Rose Hill (pop. 111,355). Their long-term averages in this dataset are essentially the same as for Port Louis, so they do not have separate pages.
Nearby places
- Vacoas 15 km · 23 °C73 °F · 716 mm28 in
- Saint-Denis 228 km · 25 °C77 °F · 793 mm31 in
- Saint-Paul 250 km · 26 °C78 °F · 632 mm25 in
- Toamasina 879 km · 25 °C77 °F · 1,952 mm77 in
- Antananarivo 1,053 km · 18 °C64 °F · 2,383 mm94 in
- Fianarantsoa 1,092 km · 18 °C65 °F · 1,774 mm70 in
- Antsirabe 1,094 km · 17 °C62 °F · 1,910 mm75 in
- Antsiranana 1,236 km · 26 °C78 °F · 1,104 mm43 in
Frequently asked questions
What is the warmest month in Port Louis?
February is the warmest month in Port Louis, with an average high of 29 °C (83 °F) and an average low of 27 °C (81 °F).
What is the coldest month in Port Louis?
August is the coldest month, with an average high of 24 °C (75 °F) and an average low of 22 °C (72 °F).
When does it rain the most in Port Louis?
January is the wettest month with about 128 mm (5.0 in) of precipitation; August is the driest with about 21 mm (0.8 in).
What is the best time to visit Port Louis?
Judging by long-term averages, the most comfortable months are April–December.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.