Saint-Benoît weather in September

In September, Saint-Benoît sees average daytime highs of 20°C and overnight lows near 18°C, with 40 mm of rain across 10.3 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 12th-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 54% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Saint-Benoît's 2nd-clearest and 4th-windiest month. For the whole year in context, see Saint-Benoît's year-round climate.

Daytime high
20°
10th warmest
Overnight low
18°
3rd coldest
Rainfall
40 mm
10.3 wet days
Daylight
11 h 54 min
6:15 AM – 6:08 PM
Cloud cover
40%
2nd clearest
Wind
17 km/h
4th windiest
Solar energy
5.82 kWh/m²
Travel score
6.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Saint-Benoît reaches about 20°C in the afternoon and slips back to 18°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 21°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12018
22018
32018
42018
52018
62018
72018
82018
92018
102018
112018
122018
132018
142018
152018
162018
172018
182018
192018
202018
212018
222018
232018
242018
252018
262018
272018
282018
292019
302019

Saint-Benoît weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 23°22319.313.15.4
Feb25° / 23°23119.712.75.1
Mar25° / 23°22320.212.15.4
Apr24° / 22°8715.411.56.2
May22° / 21°9516.2116.1
Jun21° / 19°5813.110.76.3
Jul20° / 18°5814.510.86.0
Aug20° / 18°5112.111.36.3
Sep20° / 18°4010.311.96.6
Oct21° / 19°4810.312.56.7
Nov22° / 20°6410.5136.8
Dec24° / 22°12915.613.36.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 35% of September, with mostly cloudy or overcast conditions the remaining 12%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
29010
39010
49010
59010
69010
79010
89010
99010
108911
118911
128812
138812
148713
158713
168713
178713
188713
198713
208713
218713
228713
238812
248812
258812
268812
278911
288911
298911
308911

Chance of precipitation in September

Any precipitation

Saint-Benoît gets around 40 mm of rain over 10.3 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
338
438
537
637
736
836
935
1035
1134
1234
1334
1434
1534
1634
1734
1834
1934
2034
2134
2233
2333
2433
2533
2633
2733
2833
2933
3033

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1651421
2650431
3650431
4649441
5649451
6648451
7647461
8647471
9646471
10645481
11645481
12644491
13643492
14643502
15542512
16541522
17540532
18539542
19538552
20537562
21536563
22435583
23434593
24433603
25333604
26332614
27331615
28331615
29230626
30230617

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:30 AM to 6:01 AM, and sunset from 6:04 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:306:04
211.66:296:04
311.66:286:05
411.66:276:05
511.76:266:05
611.76:256:05
711.76:246:06
811.76:236:06
911.76:226:06
1011.86:216:06
1111.86:206:07
1211.86:196:07
1311.86:186:07
1411.86:176:07
1511.96:166:08
1611.96:156:08
1711.96:146:08
1811.96:136:08
1911.96:126:09
2012.06:116:09
2112.06:106:09
2212.06:096:09
2312.06:086:10
2412.06:076:10
2512.16:066:10
2612.16:056:10
2712.16:046:11
2812.16:036:11
2912.16:026:11
3012.26:016:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.82 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 7.15 kWh/m² in December across the year — September's 5.82 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.4Bright
45.4Bright
55.4Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.7Bright
125.7Bright
135.7Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
195.9Bright
206.0Bright
216.0Bright
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.2Intense
276.2Intense
286.2Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Saint-Benoît

In seasonPeak

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

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

Saint-Benoît'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 September a good time to visit Saint-Benoît?

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

6.6
Sightseeing
3rd-best month of the year
3.4
Beach & pool
10th-best month of the year

September is a reasonable time to visit Saint-Benoît for sightseeing.

What to pack for Saint-Benoît in September

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

In September, Saint-Benoît sees daytime highs around 20°C and nights near 18°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Saint-Benoît in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) 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
Feb28Warm
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Refreshing
Aug23Refreshing
Sep23Refreshing
Oct24Warm
Nov25Warm
Dec27Warm

UV index in Saint-Benoît in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (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-Benoît 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-Benoît?

Saint-Benoît sits at 21.0°S, 55.7°E, 17 m above sea level, in Reunion. The nearest listed city is Saint-André, 11 km away.

Saint-AndréSainte-SuzanneSainte-MarieSaint-DenisLe TamponSaint-JosephLa PossessionSaint-Pierre

Topography around Saint-Benoît

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

Within 3 km, the terrain around Saint-Benoît has only modest variations in elevation — a maximum elevation change of 138 m around an average of 31 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,036 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.

The land around Saint-Benoît is covered by water (43%) and trees (30%) within 3 km, water (45%) and trees (44%) within 16 km, and water (79%) within 80 km.

3 km
138 m
16 km
2,036 m
80 km
3,030 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Saint-André 11 km · Sainte-Suzanne 18 km · Sainte-Marie 23 km · Saint-Denis 33 km · Le Tampon 34 km · Saint-Joseph 39 km · La Possession 41 km · Saint-Pierre 42 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-Benoît (-21.0379°, 55.7155°, elevation 17 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).