Climate averages 1991–2020

Saint-Pierre 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.

Average high 29.7°C Daytime mean, January

Average low 25.3°C Night-time mean, January

Rainfall 278 mm 24 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a hot month in Saint-Pierre: daytime highs average 29.7°C and nights cool to about 25.3°C. By daytime temperature it is one of the warmest months of the year.

Expect about 278 mm of rain on roughly 24 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 16 min on an average January day.

The nearest other city in this atlas is Saint-Paul (42 km away). In January its highs average 28.1°C, 1.7°C cooler than Saint-Pierre, with 183 mm of rain.

Among the 3 cities listed in Reunion, Saint-Pierre ranks 1st of 3 for the warmest January highs and 3rd of 3 for the driest January (rainfall, lowest first). The mean January high of those 3 cities is 28.6°C; Saint-Pierre is 1.1°C warmer than that mean.

From January to February, average highs stay level at 29.7°C, and monthly rainfall falls from 278 mm to 266 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Saint-Pierre climate table

1991–2020

Monthly climate averages for Saint-Pierre, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	29.7°C25.3°C	25.3°C	278	23.9	13.313 h
February	29.7°C25.5°C	25.5°C	266	22.9	12.813 h
March	29.4°C25.0°C	25.0°C	211	21.3	12.212 h
April	28.5°C23.9°C	23.9°C	93	18.2	11.612 h
May	26.7°C22.1°C	22.1°C	86	17.1	11.111 h
June	25.0°C20.3°C	20.3°C	50	13.7	10.911 h
July	24.2°C19.4°C	19.4°C	49	14.3	11.011 h
August	24.5°C19.2°C	19.2°C	45	12.6	11.411 h
September	25.5°C19.6°C	19.6°C	45	12.0	12.012 h
October	26.8°C20.9°C	20.9°C	56	13.4	12.613 h
November	28.0°C22.4°C	22.4°C	96	16.4	13.113 h
December	29.2°C24.3°C	24.3°C	174	21.6	13.413 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

Distance from Saint-Pierre

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Saint-Pierre) is explained once on the Saint-Pierre year overview and on the Sources, method and limits page.