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Saint-Louis weather

La Réunion (974) · 54,941 inhabitants · Friday, October 30 · updated 00:03

Air: Good Low storm risk · Sun

19°

Clear sky

Feels like 19°C

Wind

8 km/h

Gusts

9 km/h

Humidity

51 %

Pressure

1017 hPa

Clouds

5 %

Storm

Rise 02:36 Set 15:27 Day 12 h 51 min UV 11 · Extreme

Morning, afternoon, evening

Trend

Night

Clear sky

20°17°

Feels like 22°

Wind ↑ NNE 9 km/h

Humidity 56 %

Morning

Clear sky

25°22°

Feels like 28°

Wind ↑ N 11 km/h

Humidity 52 %

Afternoon

Clear sky

23°21°

Feels like 28°

Wind ↑ W 3 km/h

Humidity 70 %

💧 0.2 mm

Evening

Clear sky

20°19°

Feels like 20°

Wind ↑ N 10 km/h

Humidity 71 %

💧 0.1 mm

01:00

17°

ENE 0

04:00

20°

NNE 9

07:00

22°

N 1

10:00

25°

SSE 11

13:00

23°

0.1mm

W 1

16:00

21°

0.1mm

SW 3

19:00

19°

0.1mm

N 2

22:00

20°

N 10

Saint-Louis forecast in charts · next 7 days

The week ahead: highs and lows

≈ A week close to the usual temperatures

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Saint-Louis climate: what a normal year looks like

Swimmers find the warmest sea in February (28 °C) and the coolest in August (23 °C).

The hottest stretch is February, when afternoons average 25 °C; the coldest is July, when nights average 15 °C.

A normal year brings roughly 1,580 mm of rain — more than 79% of the towns of 20,000+ people we compared it with.

Afternoons climb to 25 °C only from January to March, with a typical peak of 25 °C in January.

Forecast highs for the coming week average 23 °C, 1 °C warmer than a normal October (22 °C).

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall	Sea
Jan	25 °C	21 °C	286 mm	27 °C
Feb	25 °C	21 °C	275 mm	28 °C
Mar	25 °C	21 °C	225 mm	28 °C
Apr	24 °C	20 °C	104 mm	27 °C
May	22 °C	18 °C	99 mm	26 °C
Jun	21 °C	16 °C	62 mm	25 °C
Jul	20 °C	15 °C	61 mm	24 °C
Aug	20 °C	15 °C	57 mm	23 °C
Sep	21 °C	15 °C	57 mm	23 °C
Oct	22 °C	17 °C	67 mm	24 °C
Nov	23 °C	18 °C	106 mm	25 °C
Dec	25 °C	20 °C	183 mm	26 °C
Whole year	23 °C	18 °C	1,580 mm	25 °C

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 21.23° S, 55.42° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Saint-Louis: pollution and pollen

1/6

Good

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.54µg/m³

PM106µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Saint-Louis

Rain observed over the last two hours by official weather radars around Saint-Louis, followed by the radar forecast for the next hour where the weather service provides one.

Full-screen rain radar and next-hour rain on RainAtlas

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Saint-Louis yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Saint-Louis

Waning gibbous

79 % illuminated · 19.3 days

Rise 05:59 Set 17:06

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Wed 11/11 3%

Moonrise and moonset in local time (Europe/Paris); phase and lit fraction from a synodic calculation.

Sea and tides near Saint-Louis

Tide station used: L'étang-Salé · 5 km away

🌊 Sea surface

25.0 °C

satellite, 30/10

Sea state

Smooth

waves 0.8 m

Period

10 s

Swell

0.5 m

ThuThu 29/10

Low tide 07:57 0.2 m

High tide 14:07 0.7 m

Low tide 20:54 0.1 m

TodayFri 30/10

High tide 03:15 0.5 m

Low tide 08:37 0.3 m

High tide 14:46 0.6 m

Low tide 21:52 0.2 m

TomorrowSat 31/10

High tide 04:30 0.5 m

Low tide 09:27 0.4 m

High tide 15:35 0.6 m

Low tide 23:16 0.2 m

SunSun 01/11

High tide 07:07 0.5 m

Indicative heights above chart datum. Coefficient: 20 for the weakest tides, 120 for the strongest.

Look up a past day in Saint-Louis

Curious about the weather in Saint-Louis on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Saint-Louis weather at a glance

This page gathers everything about the weather in Saint-Louis, La Réunion (974): conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is 19 °C (feels like 19 °C) and the wind blows at 8 km/h.

Expected range today: 17 °C to 25 °C and a dry sky; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms, plus the tide times for L'étang-Salé.

Other big cities nearby

Saint-Pierre 13 km 18°

Le Tampon 15 km 19°

Saint-Paul 23 km 22°

Saint-Denis 31 km 19°

Saint-André 37 km 23°

Saint-Louis weather data for developers

Use the Saint-Louis forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

Create a free key

Where does this forecast come from? Our engine, checked every day against 1125 weather stations