Saint-Louis weather in June

In June, Saint-Louis sees average daytime highs of 20°C and overnight lows near 16°C, with 50 mm of rain across 13.7 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 29% of the time in June, and the air most often feels comfortable.

Daylight stretches from about 10 h 48 min at the start of June to 10 h 42 min by month's end. Set against the rest of the year, June is Saint-Louis's 1st-clearest and 2nd-windiest month. For the whole year in context, see Saint-Louis's year-round climate.

Daytime high
20°
10th warmest
Overnight low
16°
4th coldest
Rainfall
50 mm
13.7 wet days
Daylight
10 h 42 min
6:57 AM – 5:40 PM
Cloud cover
51%
1st clearest
Wind
9 km/h
2nd windiest
Solar energy
3.93 kWh/m²
Travel score
5.9
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical June day in Saint-Louis reaches about 20°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 22°C. Set against its neighbours, June runs about 2°C cooler than May and about 1°C warmer than July.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12117
22116
32116
42116
52116
62116
72116
82116
92116
102116
112116
122116
132016
142016
152016
162016
172016
182016
192015
202015
212015
222015
232015
242015
252015
262015
272015
282015
292015
302015

Saint-Louis weather by month

How June compares with the rest of the year at a glance. June is the 10th-warmest and 9th-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 June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in June, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 37% of June, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36733
46733
56733
66733
76634
86634
96634
106634
116634
126634
136733
146733
156733
166733
176733
186733
196733
206733
216733
226733
236634
246634
256634
266535
276535
286535
296535
306436

Chance of precipitation in June

Any precipitation

Saint-Louis gets around 50 mm of rain over 13.7 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
148
248
347
447
547
646
746
845
945
1045
1144
1244
1344
1444
1544
1644
1744
1844
1944
2045
2145
2245
2346
2446
2547
2647
2747
2848
2948
3048

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the comfortable band about 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1846432
2948412
31049391
41151371
51252351
61353331
71454311
81456291
91557271
101658251
111758241
121759231
131859221
141960210
151961200
162060200
172061190
182160190
192161180
202260180
212261170
222360170
232361160
242461150
252560150
262561140
272661130
282761120
292861110
302961100

Wind in June

Winds average 9 km/h in June.

Across June, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 10 h 48 min at the start of June to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over June. Sunrise moves from 6:52 AM to 7:00 AM, and sunset from 5:40 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:525:40
210.86:525:40
310.86:535:40
410.86:535:40
510.86:535:40
610.86:545:40
710.86:545:39
810.76:555:39
910.76:555:39
1010.76:555:40
1110.76:565:40
1210.76:565:40
1310.76:565:40
1410.76:575:40
1510.76:575:40
1610.76:575:40
1710.76:585:40
1810.76:585:40
1910.76:585:40
2010.76:585:41
2110.76:595:41
2210.76:595:41
2310.76:595:41
2410.76:595:41
2510.76:595:42
2610.77:005:42
2710.77:005:42
2810.77:005:42
2910.77:005:43
3010.77:005:43

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 3.93 kWh/m² — the year's lowest.

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 — June's 3.93 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.0Moderate
84.0Moderate
94.0Moderate
104.0Moderate
114.0Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in June

Hazard calendar for Saint-Louis

In seasonPeak

None of Saint-Louis's seasonal hazards are active in June. 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 June a good time to visit Saint-Louis?

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

5.9
Sightseeing
4th-best month of the year
3.3
Beach & pool
10th-best month of the year

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

What to pack for Saint-Louis in June

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

In June, Saint-Louis sees daytime highs around 20°C and nights near 16°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Saint-Louis in June

The nearest coast averages about 25°C in June — 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 June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 6 — enough to warrant sun protection. 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
June 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).