Climate averages 1991–2020
Port Louis weather
in January.
A hot, very wet month: one of the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Port Louis: daytime highs average 29.5°C and nights cool to about 25.4°C. By daytime temperature it is one of the warmest months of the year.
Expect about 188 mm of rain on roughly 23 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 12 min on an average January day.
The nearest other city in this atlas is Vacoas (15 km away). In January its highs average 27.7°C, 1.8°C cooler than Port Louis, with 188 mm of rain.
Among the 2 cities listed in Mauritius, Port Louis ranks 1st of 2 for the warmest January highs and joint 1st of 2 for the driest January (rainfall, lowest first). The mean January high of those 2 cities is 28.6°C; Port Louis is 0.9°C warmer than that mean.
From January to February, average highs fall by 0.1°C to 29.5°C, and monthly rainfall falls from 188 mm to 170 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Port Louis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.5°C25.4°C | 25.4°C | 188 | 22.7 | 13.213 h |
| February | 29.5°C25.6°C | 25.6°C | 170 | 22.1 | 12.813 h |
| March | 29.2°C25.3°C | 25.3°C | 139 | 21.6 | 12.212 h |
| April | 28.5°C24.4°C | 24.4°C | 67 | 16.2 | 11.612 h |
| May | 26.9°C22.8°C | 22.8°C | 43 | 11.1 | 11.211 h |
| June | 25.3°C21.2°C | 21.2°C | 21 | 7.1 | 10.911 h |
| July | 24.5°C20.3°C | 20.3°C | 21 | 8.1 | 11.011 h |
| August | 24.6°C20.1°C | 20.1°C | 24 | 7.1 | 11.411 h |
| September | 25.4°C20.4°C | 20.4°C | 26 | 7.2 | 12.012 h |
| October | 26.8°C21.5°C | 21.5°C | 26 | 7.4 | 12.513 h |
| November | 28.1°C22.9°C | 22.9°C | 43 | 10.8 | 13.113 h |
| December | 29.3°C24.5°C | 24.5°C | 97 | 16.9 | 13.313 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Vacoas in JanuaryMauritius · 15 kmHigh 27.7°C · Low 23.1°C · 188 mm rain
- Saint-Denis in JanuaryReunion · 228 kmHigh 28.1°C · Low 24.9°C · 249 mm rain
- Saint-Pierre in JanuaryReunion · 248 kmHigh 29.7°C · Low 25.3°C · 278 mm rain
- Saint-Paul in JanuaryReunion · 250 kmHigh 28.1°C · Low 24.6°C · 183 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Port Louis) is explained once on the Port Louis year overview and on the Sources, method and limits page.
Vacoas lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.