Modimolle weather in September

In September, Modimolle sees average daytime highs of 28°C and overnight lows near 14°C, with 14 mm of rain across 2.7 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 29°C by the end. The sky is clear or mostly clear about 75% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Modimolle's 5th-clearest and 2nd-windiest month. For the whole year in context, see Modimolle's year-round climate.

Daytime high
28°
6th warmest
Overnight low
14°
5th coldest
Rainfall
14 mm
2.7 wet days
Daylight
11 h 54 min
6:05 AM – 5:56 PM
Cloud cover
24%
5th clearest
Wind
10 km/h
2nd windiest
Solar energy
6.06 kWh/m²
Travel score
7.9
out of 10

Modimolle is town.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 29°C by the end.

A typical September day in Modimolle reaches about 28°C in the afternoon and slips back to 14°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°C. Set against its neighbours, September runs about 4°C warmer than August and about 1°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12612
22612
32612
42712
52712
62712
72713
82713
92713
102713
112713
122813
132813
142813
152814
162814
172814
182814
192814
202814
212814
222814
232815
242815
252915
262915
272915
282915
292915
302915

Modimolle weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°11713.513.45.4
Feb29° / 19°879.712.95.8
Mar27° / 17°869.812.26.7
Apr25° / 14°435.911.47.8
May23° / 10°142.610.88.9
Jun21° / 50.910.58.8
Jul21° / 30.610.68.8
Aug24° / 10°41.311.19.2
Sep28° / 14°142.711.87.9
Oct29° / 16°57912.66.1
Nov28° / 17°10513.313.25.5
Dec28° / 18°13515.713.55.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1919
2919
3919
49010
59010
69010
79010
88911
98911
108911
118911
128911
138812
148812
158713
168713
178713
188713
198713
208713
218614
228614
238614
248416
258416
268416
278317
288317
298317
308119

Chance of precipitation in September

Any precipitation

Modimolle gets around 14 mm of rain over 2.7 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 10% and peaks near 19% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
26
36
46
56
66
76
87
97
107
117
127
137
147
157
167
178
188
199
2010
2110
2211
2312
2413
2514
2615
2716
2817
2918
3019

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
19991
20991
21991
22982
23982
24973
25964
26964
27955
28946
29928
30919

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over September. Sunrise moves from 6:21 AM to 5:50 AM, and sunset from 5:51 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:215:51
211.56:205:51
311.56:195:52
411.66:185:52
511.66:175:52
611.66:165:53
711.66:155:53
811.76:145:54
911.76:135:54
1011.76:125:54
1111.76:115:55
1211.86:095:55
1311.86:085:55
1411.86:075:56
1511.86:065:56
1611.96:055:56
1711.96:045:57
1811.96:035:57
1911.96:025:58
2012.06:015:58
2112.05:595:58
2212.05:585:59
2312.05:575:59
2412.15:565:59
2512.15:556:00
2612.15:546:00
2712.15:536:01
2812.25:526:01
2912.25:516:01
3012.25:506:02

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.06 kWh/m².

For context, solar energy here swings from a low near 4 kWh/m² to a high of 6.64 kWh/m² in December across the year — September's 6.06 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Modimolle

In seasonPeak

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

Modimolle's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Modimolle?

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

7.9
Sightseeing
5th-best month of the year
8.4
Beach & pool
1st-best month of the year

September is one of the better times to visit Modimolle for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Modimolle in September

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

In September, Modimolle sees daytime highs around 28°C and nights near 14°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Modimolle in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Modimolle peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 14Jun 16UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul6High
Aug8Very high
Sep9Very high
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Modimolle in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Modimolle is worst in July — around 79 µg/m³ PM2.5 (unhealthy), about 5.7× the cleanest month (January, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1179 µg/m³Jan 1114 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb20Moderate
Mar29Moderate
Apr47Poor
May71Unhealthy
Jun77Unhealthy
Jul79Unhealthy
Aug69Unhealthy
Sep57Unhealthy
Oct31Moderate
Nov20Moderate
Dec15Moderate
Location & terrain

Where is Modimolle?

Modimolle sits at 24.7°S, 28.4°E, 1,177 m above sea level, in South Africa. The nearest listed city is Bela Bela, 24 km away.

Topography around Modimolle

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

Within 3 km, the terrain around Modimolle has only modest variations in elevation — a maximum elevation change of 92 m around an average of 1,182 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, large variations in elevation — a maximum elevation change of 1,099 m.

The land around Modimolle is covered by shrubs (32%), grassland (29%) and artificial surfaces (21%) within 3 km, shrubs (52%) and grassland (29%) within 16 km, and shrubs (53%) and grassland (27%) within 80 km.

3 km
92 m
16 km
514 m
80 km
1,099 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Bela Bela 24 km · Mookgophong 38 km · Vaalwater 53 km · Vaalbank 68 km · Siyabuswa 80 km · Hammanskraal 80 km · Mokopane 83 km · Somaroboro 84 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Modimolle (-24.7°, 28.4°, elevation 1,177 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).