Zeerust weather in September

In September, Zeerust sees average daytime highs of 27°C and overnight lows near 13°C, with 14 mm of rain across 1.9 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 28°C by the end. The sky is clear or mostly clear about 78% 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 Zeerust's 5th-clearest and 2nd-windiest month. For the whole year in context, see Zeerust's year-round climate.

Daytime high
27°
7th warmest
Overnight low
13°
5th coldest
Rainfall
14 mm
1.9 wet days
Daylight
11 h 54 min
6:14 AM – 6:06 PM
Cloud cover
21%
5th clearest
Wind
12 km/h
2nd windiest
Solar energy
6.16 kWh/m²
Travel score
8.5
out of 10

Zeerust is town in South Africa.

Founded
1867

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 25°C in the first days to 28°C by the end.

A typical September day in Zeerust reaches about 27°C in the afternoon and slips back to 13°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, September runs about 4°C warmer than August and about 2°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12511
22511
32511
42611
52611
62611
72611
82612
92612
102612
112712
122712
132712
142712
152713
162713
172713
182713
192713
202713
212713
222813
232814
242814
252814
262814
272814
282814
292814
302814

Zeerust weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°9614.213.45.2
Feb28° / 18°9211.612.95.7
Mar27° / 17°7810.812.26.7
Apr25° / 13°435.711.48.0
May23° / 182.410.88.7
Jun20° / 91.310.48.5
Jul20° / 30.610.68.6
Aug23° / 61.411.19.1
Sep27° / 13°141.911.88.5
Oct29° / 16°45712.66.6
Nov29° / 17°7911.713.25.6
Dec29° / 18°10314.513.65.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 78% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3928
4928
5928
6928
7919
89010
99010
109010
119010
128911
138911
148812
158812
168713
178713
188713
198713
208614
218614
228614
238614
248614
258614
268614
278713
288713
298713
308614

Chance of precipitation in September

Any precipitation

Zeerust gets around 14 mm of rain over 1.9 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 7% and peaks near 12% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
17
27
37
47
57
67
76
86
96
106
116
126
136
146
156
166
176
186
196
207
217
227
237
248
258
269
2710
2810
2911
3012

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 99% 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
191000
201000
21991
22991
23991
24991
25982
26982
27973
28964
29955
30955

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

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 6:31 AM to 5:59 AM, and sunset from 6:00 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:316:00
211.56:306:00
311.56:296:00
411.56:286:01
511.66:276:01
611.66:266:02
711.66:256:02
811.66:246:02
911.76:226:03
1011.76:216:03
1111.76:206:04
1211.86:196:04
1311.86:186:04
1411.86:176:05
1511.86:166:05
1611.96:146:06
1711.96:136:06
1811.96:126:06
1911.96:116:07
2012.06:106:07
2112.06:096:08
2212.06:086:08
2312.06:066:08
2412.16:056:09
2512.16:046:09
2612.16:036:10
2712.16:026:10
2812.26:016:10
2912.26:006:11
3012.25:596:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.16 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 6.9 kWh/m² in December across the year — September's 6.16 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Bright
116.0Intense
126.0Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.4Intense
246.4Intense
256.4Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for Zeerust

In seasonPeak

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

Zeerust'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 Zeerust?

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

8.5
Sightseeing
4th-best month of the year
8.4
Beach & pool
1st-best month of the year

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

What to pack for Zeerust in September

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

In September, Zeerust sees daytime highs around 27°C and nights near 13°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Zeerust 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 Zeerust peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 14UV 14Jun 18UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Zeerust 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 Zeerust is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1220 µg/m³Dec 196 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar11Good
Apr14Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug18Moderate
Sep20Moderate
Oct12Moderate
Nov8Good
Dec6Good
Location & terrain

Where is Zeerust?

Zeerust sits at 25.5°S, 26.1°E, 1,213 m above sea level, in South Africa. The nearest listed city is Lobatse, 53 km away.

Topography around Zeerust

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

Within 3 km, the terrain around Zeerust has significant variations in elevation — a maximum elevation change of 315 m around an average of 1,248 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 444 m; within 80 km, large variations in elevation — a maximum elevation change of 770 m.

The land around Zeerust is covered by grassland (41%) and shrubs (23%) within 3 km, grassland (40%), shrubs (34%) and trees (23%) within 16 km, and grassland (44%) and shrubs (35%) within 80 km.

3 km
315 m
16 km
444 m
80 km
770 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Lobatse 53 km · Janeng 54 km · Mmabatho 56 km · Mafikeng 57 km · Itsoseng 64 km · Lichtenburg 69 km · Ramotswa 77 km · Koster 90 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 Zeerust (-25.537°, 26.0751°, elevation 1,213 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).