Bethal weather in September

In September, Bethal sees average daytime highs of 24°C and overnight lows near 10°C, with 23 mm of rain across 3.8 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 67% 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 Bethal's 5th-clearest and 1st-windiest month. For the whole year in context, see Bethal's year-round climate.

Daytime high
24°
6th warmest
Overnight low
10°
5th coldest
Rainfall
23 mm
3.8 wet days
Daylight
11 h 48 min
6:01 AM – 5:52 PM
Cloud cover
29%
5th clearest
Wind
13 km/h
1st windiest
Solar energy
5.93 kWh/m²
Travel score
8.5
out of 10

Bethal is place in Mpumalanga, South Africa.

Founded
1898

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 23°C in the first days to 25°C by the end.

A typical September day in Bethal reaches about 24°C in the afternoon and slips back to 10°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, September runs about 3°C warmer than August and on par with October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1238
2238
3239
4239
5239
6239
7249
8249
9249
10249
112410
122410
132410
142410
152410
162410
172410
182410
192510
202510
212511
222511
232511
242511
252511
262511
272511
282511
292511
302511

How September really feels in Bethal

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bethal weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 15°13216.213.56.0
Feb25° / 15°9412.412.96.4
Mar24° / 13°9010.812.27.1
Apr22° / 10°426.511.47.5
May20° / 152.710.78.1
Jun18° / 70.910.47.9
Jul18° / 60.810.57.9
Aug21° / 122.411.18.4
Sep24° / 10°233.811.88.5
Oct25° / 12°9112.212.66.9
Nov24° / 13°1121513.36.1
Dec25° / 14°14517.813.65.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18812
28812
38713
48713
58713
68614
78614
88515
98416
108416
118416
128218
138218
148218
158119
168119
178119
188020
197921
207921
217921
227921
237822
247822
257723
267723
277624
287624
297525
307426

Chance of precipitation in September

Any precipitation

Bethal gets around 23 mm of rain over 3.8 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 14% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
110
210
310
410
511
611
711
811
911
1011
1112
1212
1312
1412
1512
1612
1712
1812
1913
2013
2114
2214
2315
2416
2517
2618
2719
2820
2921
3023

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 100% 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
211000
221000
231000
241000
251000
261000
271000
281000
29991
30991

Wind in September

Winds average 13 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2813light breeze
2913light breeze
3013light 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 6:18 AM to 5:45 AM, and sunset from 5:45 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:185:45
211.56:175:46
311.56:165:46
411.56:155:47
511.66:145:47
611.66:135:48
711.66:125:48
811.66:105:48
911.76:095:49
1011.76:085:49
1111.76:075:50
1211.76:065:50
1311.86:055:51
1411.86:035:51
1511.86:025:51
1611.86:015:52
1711.96:005:52
1811.95:595:53
1911.95:585:53
2012.05:565:54
2112.05:555:54
2212.05:545:54
2312.05:535:55
2412.15:525:55
2512.15:515:56
2612.15:495:56
2712.15:485:57
2812.25:475:57
2912.25:465:58
3012.25:455:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.93 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 6.66 kWh/m² in December across the year — September's 5.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Bethal

In seasonPeak

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

Bethal's rainy season runs October–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 Bethal?

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

8.5
Sightseeing
1st-best month of the year
7.1
Beach & pool
1st-best month of the year

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

What to pack for Bethal in September

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

In September, Bethal sees daytime highs around 24°C and nights near 10°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Bethal 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 Bethal peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 20UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Bethal 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 Bethal is worst in July — around 87 µg/m³ PM2.5 (unhealthy), about 3.6× the cleanest month (January, 24 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1286 µg/m³Jan 1024 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb31Moderate
Mar39Poor
Apr56Unhealthy
May73Unhealthy
Jun83Unhealthy
Jul87Unhealthy
Aug72Unhealthy
Sep55Poor
Oct35Moderate
Nov26Moderate
Dec25Moderate
Location & terrain

Where is Bethal?

Bethal sits at 26.5°S, 29.5°E, 1,661 m above sea level, in South Africa. The nearest listed city is Trichardt, 24 km away.

Topography around Bethal

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

Within 3 km, the terrain around Bethal has only modest variations in elevation — a maximum elevation change of 78 m around an average of 1,655 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 186 m; within 80 km, significant variations in elevation — a maximum elevation change of 540 m.

The land around Bethal is covered by grassland (53%) and artificial surfaces (25%) within 3 km, grassland (52%) and cropland (45%) within 16 km, and grassland (58%) and cropland (38%) within 80 km.

3 km
78 m
16 km
186 m
80 km
540 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Trichardt 24 km · Kriel 31 km · Secunda 31 km · Thubelihle 32 km · Kinross 38 km · eMbalenhle 41 km · Hendrina 42 km · Ermelo 52 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 Bethal (-26.4579°, 29.4655°, elevation 1,661 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).