Saint-Louis weather in October

In October, Saint-Louis sees average daytime highs of 22°C and overnight lows near 16°C, with 56 mm of rain across 13.4 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 24% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 48 min by month's end. Set against the rest of the year, October is Saint-Louis's 6th-clearest and 9th-windiest month. For the whole year in context, see Saint-Louis's year-round climate.

Daytime high
22°
7th warmest
Overnight low
16°
5th coldest
Rainfall
56 mm
13.4 wet days
Daylight
12 h 30 min
5:48 AM – 6:18 PM
Cloud cover
59%
6th clearest
Wind
7 km/h
9th windiest
Solar energy
6.71 kWh/m²
Travel score
6.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical October day in Saint-Louis reaches about 22°C in the afternoon and slips back to 16°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, October runs about 1°C warmer than September and about 1°C cooler than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12216
22216
32216
42216
52216
62216
72216
82216
92216
102216
112216
122216
132216
142216
152216
162216
172216
182216
192217
202217
212217
222317
232317
242317
252317
262317
272317
282317
292317
302317
312317

Saint-Louis weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 21°28023.913.24.5
Feb25° / 21°26422.712.74.4
Mar25° / 20°21221.312.25.0
Apr24° / 19°9318.211.55.6
May22° / 18°8617.1115.8
Jun20° / 16°5013.710.75.9
Jul20° / 15°4914.310.85.7
Aug20° / 15°4512.611.36.1
Sep21° / 15°451211.96.2
Oct22° / 16°5613.412.56.2
Nov24° / 18°9616.4135.8
Dec25° / 20°17421.613.35.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 25% of October, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25446
35446
45347
55347
65248
75149
85149
94951
105050
114951
124951
134951
144951
154951
164951
174951
184852
194852
204951
214852
224852
234852
244753
254654
264555
274555
284456
294357
304258
314258

Chance of precipitation in October

Any precipitation

Saint-Louis gets around 56 mm of rain over 13.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
442
542
642
742
842
942
1042
1142
1242
1342
1442
1541
1641
1741
1842
1942
2042
2143
2243
2343
2444
2544
2645
2746
2846
2947
3048
3148

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the comfortable band about 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11865170
21864180
31863190
41763200
51762210
61761220
71760230
81759240
91659250
101658260
111658260
121558270
131557271
141556281
151457281
161357291
171357291
181257301
191256311
201156321
211056322
221055332
231054342
24954352
25954352
26953362
27852373
28852373
29851383
30851383
31751393

Wind in October

Winds average 7 km/h in October.

Across October, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over October. Sunrise moves from 6:02 AM to 5:39 AM, and sunset from 6:13 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:026:13
212.26:016:13
312.26:006:14
412.35:596:14
512.35:586:14
612.35:576:15
712.35:566:15
812.35:556:15
912.45:546:16
1012.45:536:16
1112.45:536:16
1212.45:526:17
1312.45:516:17
1412.55:506:18
1512.55:496:18
1612.55:486:18
1712.55:486:19
1812.55:476:19
1912.65:466:20
2012.65:456:20
2112.65:456:20
2212.65:446:21
2312.65:436:21
2412.75:436:22
2512.75:426:22
2612.75:416:23
2712.75:416:23
2812.75:406:24
2912.75:406:24
3012.85:396:25
3112.85:396:25

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.71 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 7.11 kWh/m² in November across the year — October's 6.71 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.6Intense
106.6Intense
116.6Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
307.0Intense
317.0Intense
Planning a trip in October

Hazard calendar for Saint-Louis

In seasonPeak

None of Saint-Louis's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Saint-Louis sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Saint-Louis's monsoon runs December–March, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Saint-Louis?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
1st-best month of the year
4.4
Beach & pool
5th-best month of the year

October is a reasonable time to visit Saint-Louis for sightseeing.

What to pack for Saint-Louis in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Saint-Louis sees daytime highs around 22°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 13 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Saint-Louis in October

The nearest coast averages about 24°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 28°C and coldest in August near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Refreshing
Aug23Refreshing
Sep23Refreshing
Oct24Warm
Nov25Warm
Dec27Warm

UV index in Saint-Louis in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Louis peaks around January 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 17UV 16Jul 10UV 6
UV index (midday)Level
Jan17Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul6High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Saint-Louis?

Saint-Louis sits at 21.3°S, 55.4°E, 40 m above sea level, in Reunion. The nearest listed city is Saint-Pierre, 9.0 km away.

Saint-PierreLe TamponPiton Saint-LeuSaint-LeuSaint-JosephSaint-PaulLa PossessionLe Port

Topography around Saint-Louis

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Louis.

Within 3 km, the terrain around Saint-Louis has only modest variations in elevation — a maximum elevation change of 244 m around an average of 55 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,578 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.

The land around Saint-Louis is covered by trees (40%) and artificial surfaces (20%) within 3 km, water (43%) and trees (36%) within 16 km, and water (79%) within 80 km.

3 km
244 m
16 km
2,578 m
80 km
3,030 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Saint-Pierre 9.0 km · Le Tampon 11 km · Piton Saint-Leu 12 km · Saint-Leu 18 km · Saint-Joseph 24 km · Saint-Paul 34 km · La Possession 40 km · Le Port 41 km

Reunion travel facts

Power plugs
Type C / E
220 V · 50 Hz

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint-Louis (-21.2858°, 55.4112°, elevation 40 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).