Saint-Leu weather in August

In August, Saint-Leu sees average daytime highs of 21°C and overnight lows near 19°C, with 28 mm of rain across 7.5 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 54% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 11 hours at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is Saint-Leu's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Saint-Leu's year-round climate.

Daytime high
21°
12th warmest
Overnight low
19°
1st coldest
Rainfall
28 mm
7.5 wet days
Daylight
11 h 18 min
6:45 AM – 6:01 PM
Cloud cover
39%
3rd clearest
Wind
10 km/h
3rd windiest
Solar energy
4.99 kWh/m²
Travel score
7.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical August day in Saint-Leu reaches about 21°C in the afternoon and slips back to 19°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 23°C. Set against its neighbours, August runs on par with July and on par with September.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12119
22119
32119
42118
52118
62118
72118
82118
92118
102118
112118
122118
132118
142118
152118
162118
172118
182219
192219
202219
212219
222219
232219
242219
252219
262219
272219
282219
292219
302219
312219

Saint-Leu weather by month

How August compares with the rest of the year at a glance. August is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°20622.713.14.7
Feb26° / 24°18718.912.75.0
Mar26° / 24°15417.612.15.6
Apr25° / 23°6012.111.56.6
May24° / 21°458.5117.5
Jun22° / 20°246.310.77.7
Jul22° / 19°185.810.87.6
Aug21° / 19°287.511.37.3
Sep22° / 19°32911.97.1
Oct23° / 20°441212.56.8
Nov24° / 21°6713.4136.5
Dec25° / 23°1241913.35.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 32% of August, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38812
48812
58812
68812
78713
88713
98713
108713
118713
128713
138713
148713
158713
168713
178713
188614
198614
208614
218515
228515
238515
248515
258416
268416
278416
288416
298416
308416
318416

Chance of precipitation in August

Any precipitation

Saint-Leu gets around 28 mm of rain over 7.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
121
221
321
421
522
622
722
822
922
1022
1122
1223
1323
1424
1524
1625
1725
1825
1926
2026
2126
2227
2327
2427
2527
2627
2727
2827
2927
3027
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11255303
21255303
31255303
41255303
51255303
61256293
71256293
81256293
91256293
101257292
111157302
121157302
131157302
141156312
151254322
161255321
171254331
181254331
191254331
201353331
211353331
221353331
231353331
241353331
251352341
261352341
271352341
281352341
291352341
301351351
311351351

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 hours at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 6:54 AM to 6:32 AM, and sunset from 5:56 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:545:56
211.06:545:56
311.16:535:56
411.16:535:57
511.16:525:57
611.16:525:57
711.16:515:58
811.16:505:58
911.16:505:59
1011.26:495:59
1111.26:485:59
1211.26:486:00
1311.26:476:00
1411.26:466:00
1511.36:466:01
1611.36:456:01
1711.36:446:01
1811.36:436:02
1911.36:436:02
2011.36:426:02
2111.46:416:03
2211.46:406:03
2311.46:396:03
2411.46:386:04
2511.46:386:04
2611.56:376:04
2711.56:366:04
2811.56:356:05
2911.56:346:05
3011.56:336:05
3111.66:326:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.01 kWh/m² to a high of 7.21 kWh/m² in November across the year — August's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in August

Hazard calendar for Saint-Leu

In seasonPeak

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

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

Saint-Leu'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 August a good time to visit Saint-Leu?

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

7.3
Sightseeing
4th-best month of the year
4.8
Beach & pool
11th-best month of the year

August is one of the better times to visit Saint-Leu for general sightseeing.

What to pack for Saint-Leu in August

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

In August, Saint-Leu sees daytime highs around 21°C and nights near 19°C. Worth packing: sun protection. About 8 days see rain.

sun protection

Sea temperature near Saint-Leu in August

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

The sea at the nearest coast (about 18 km away) is warmest in February at about 28°C and coldest in August near 24°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
Mar28Tropical
Apr28Warm
May27Warm
Jun25Warm
Jul24Warm
Aug24Refreshing
Sep24Refreshing
Oct24Warm
Nov26Warm
Dec27Warm

UV index in Saint-Leu in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (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-Leu 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
Jan16Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May8Very high
Jun6High
Jul6High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Saint-Leu?

Saint-Leu sits at 21.2°S, 55.3°E, 10 m above sea level, in Reunion. The nearest listed city is Piton Saint-Leu, 6.0 km away.

Piton Saint-LeuSaint-PaulSaint-LouisLe PortLe TamponSaint-PierreLa PossessionSaint-Denis

Topography around Saint-Leu

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

Within 3 km, the terrain around Saint-Leu has large variations in elevation — a maximum elevation change of 724 m around an average of 162 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,871 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.

The land around Saint-Leu is covered by water (41%) and trees (39%) within 3 km, water (47%) and trees (31%) within 16 km, and water (78%) within 80 km.

3 km
724 m
16 km
2,871 m
80 km
3,030 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Piton Saint-Leu 6.0 km · Saint-Paul 18 km · Saint-Louis 18 km · Le Port 26 km · Le Tampon 27 km · Saint-Pierre 27 km · La Possession 27 km · Saint-Denis 36 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-Leu (-21.1706°, 55.2882°, elevation 10 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).