Plaine Magnien weather in September

In September, Plaine Magnien sees average daytime highs of 23°C and overnight lows near 20°C, with 36 mm of rain across 10.7 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 39% 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 Plaine Magnien's 3rd-clearest and 4th-windiest month. For the whole year in context, see Plaine Magnien's year-round climate.

Daytime high
23°
10th warmest
Overnight low
20°
3rd coldest
Rainfall
36 mm
10.7 wet days
Daylight
11 h 54 min
6:07 AM – 6:00 PM
Cloud cover
46%
3rd clearest
Wind
23 km/h
4th windiest
Solar energy
5.69 kWh/m²
Travel score
6.9
out of 10

Plaine Magnien is human settlement in Mauritius.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Plaine Magnien reaches about 23°C in the afternoon and slips back to 20°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 24°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)
12320
22320
32320
42320
52320
62320
72320
82320
92320
102320
112320
122320
132320
142320
152320
162320
172320
182320
192320
202320
212320
222320
232320
242320
252320
262320
272320
282320
292320
302320

Plaine Magnien weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°19023.813.14.4
Feb27° / 25°1812312.74.2
Mar27° / 25°15222.912.14.7
Apr26° / 24°8919.711.55.3
May25° / 22°6314.4116.5
Jun23° / 21°3410.910.87.0
Jul23° / 20°3812.810.96.6
Aug22° / 20°3610.711.36.8
Sep23° / 20°3610.711.96.9
Oct24° / 21°329.312.57.3
Nov25° / 22°4812.1136.6
Dec27° / 24°10718.113.25.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 38% of September, with mostly cloudy or overcast conditions the remaining 23%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18020
28020
38020
48020
58020
67921
77921
87921
97822
107723
117723
127624
137525
147525
157525
167426
177426
187426
197525
207624
217624
227624
237624
247723
257723
267723
277822
287822
297822
307822

Chance of precipitation in September

Any precipitation

Plaine Magnien gets around 36 mm of rain over 10.7 wet days in September. 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 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1136
1236
1336
1436
1536
1636
1736
1835
1935
2035
2135
2235
2335
2435
2534
2634
2734
2834
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 57% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12295712
22295712
32295613
42295613
52295613
62285713
72285713
82285713
92275714
102275714
112275714
123275614
133265714
143265714
153255814
163255715
173245815
183235915
193235816
203225817
213215818
223215818
233205819
243205720
253195721
263195622
272195722
282185723
292185525
302175526

Wind in September

Winds average 23 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy

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 6:21 AM to 5:54 AM, and sunset from 5:57 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:215:57
211.66:205:57
311.66:205:57
411.66:195:57
511.76:185:58
611.76:175:58
711.76:165:58
811.76:155:58
911.76:145:59
1011.86:135:59
1111.86:125:59
1211.86:115:59
1311.86:106:00
1411.86:096:00
1511.96:086:00
1611.96:076:00
1711.96:066:00
1811.96:056:01
1911.96:046:01
2012.06:036:01
2112.06:026:01
2212.06:016:02
2312.06:006:02
2412.05:596:02
2512.15:586:02
2612.15:576:03
2712.15:566:03
2812.15:566:03
2912.15:556:03
3012.25:546:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.69 kWh/m².

For context, solar energy here swings from a low near 3.79 kWh/m² to a high of 7.29 kWh/m² in December across the year — September's 5.69 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.4Bright
75.4Bright
85.4Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
246.0Bright
256.0Intense
266.1Intense
276.1Intense
286.1Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Plaine Magnien

In seasonPeak

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

Plaine Magnien sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Plaine Magnien's monsoon runs December–April, 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 Plaine Magnien?

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

6.9
Sightseeing
3rd-best month of the year
5.3
Beach & pool
6th-best month of the year

September is a reasonable time to visit Plaine Magnien for sightseeing.

What to pack for Plaine Magnien in September

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

In September, Plaine Magnien sees daytime highs around 23°C and nights near 20°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 11 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Plaine Magnien 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 22 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
Oct24Refreshing
Nov25Warm
Dec27Warm

UV index in Plaine Magnien in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Plaine Magnien peaks around January 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 16Jun 23UV 6
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Plaine Magnien?

Plaine Magnien sits at 20.4°S, 57.7°E, 0 m above sea level, in Mauritius. The nearest listed city is Mahébourg, 4.0 km away.

MahébourgRose-BelleSouillacCurepipeBel Air Rivière SècheChemin-GrenierVacoas-PhoenixCentre de Flacq

Topography around Plaine Magnien

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Plaine Magnien.

Within 3 km, the terrain around Plaine Magnien has only modest variations in elevation — a maximum elevation change of 157 m around an average of 66 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 672 m; within 80 km, large variations in elevation — a maximum elevation change of 786 m.

The land around Plaine Magnien is covered by cropland (39%), trees (29%) and grassland (22%) within 3 km, water (45%) and trees (30%) within 16 km, and water (83%) within 80 km.

3 km
157 m
16 km
672 m
80 km
786 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Mahébourg 4.0 km · Rose-Belle 8.0 km · Souillac 19 km · Curepipe 20 km · Bel Air Rivière Sèche 21 km · Chemin-Grenier 22 km · Vacoas-Phoenix 25 km · Centre de Flacq 27 km

Mauritius travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E / G
230 V · 50 Hz
Prices
≈ 39% of US
price level, 2025
GDP per capita
$12,991
2025
Happiness
5.9 / 10
World Happiness, 2025
Homicide rate
2.3
per 100k, 2022
Road deaths
12.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Hindu 49%Roman Catholic 26%Muslim 17%other Christian 6%

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 Plaine Magnien (-20.4297°, 57.6697°, elevation 0 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).