Mbabane weather in September

In September, Mbabane sees average daytime highs of 23°C and overnight lows near 12°C, with 57 mm of rain across 9 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 8th-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 56% 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 Mbabane's 5th-clearest and 1st-windiest month. For the whole year in context, see Mbabane's year-round climate.

Daytime high
23°
7th warmest
Overnight low
12°
5th coldest
Rainfall
57 mm
9 wet days
Daylight
11 h 48 min
5:54 AM – 5:45 PM
Cloud cover
40%
5th clearest
Wind
9 km/h
1st windiest
Solar energy
5.07 kWh/m²
Travel score
7.4
out of 10

Mbabane is capital of Eswatini.

Density
508/km²
people per km²
Founded
1902

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 Mbabane reaches about 23°C in the afternoon and slips back to 12°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 30°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12311
22311
32311
42311
52311
62311
72311
82311
92312
102312
112312
122412
132412
142412
152412
162412
172412
182412
192412
202412
212412
222412
232412
242412
252412
262413
272413
282413
292413
302413

Mbabane weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°21719.713.55.3
Feb25° / 17°17616.612.95.5
Mar25° / 16°15916.812.26.0
Apr23° / 14°7811.311.46.9
May22° / 11°325.510.78.0
Jun20° / 183.510.48.1
Jul20° / 183.910.57.9
Aug22° / 10°325.511.17.9
Sep23° / 12°57911.87.4
Oct24° / 13°11215.712.66.1
Nov24° / 15°17118.613.35.4
Dec25° / 16°20819.913.65.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27822
37723
47723
57624
67624
77525
87426
97426
107327
117228
127129
137030
147030
156931
166832
176832
186733
196733
206733
216634
226634
236535
246436
256337
266238
276238
286139
296040
306040

Chance of precipitation in September

Any precipitation

Mbabane gets around 57 mm of rain over 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 30% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
122
223
323
423
524
625
725
826
926
1027
1128
1228
1329
1429
1530
1630
1730
1831
1931
2032
2133
2233
2334
2435
2536
2636
2737
2838
2938
3039

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19550
29460
39460
49460
59370
69370
79280
89190
99190
1090100
1189110
1288120
1387130
1486140
1585150
1683161
1782171
1880191
1979201
2077221
2176231
2273252
2372262
2471272
2569292
2667303
2765323
2863334
2962344
3061354

Wind in September

Winds average 9 km/h in September, the windiest month of the year.

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

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:12 AM to 5:38 AM, and sunset from 5:39 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:125:39
211.56:105:39
311.56:095:40
411.56:085:40
511.66:075:41
611.66:065:41
711.66:055:41
811.66:045:42
911.76:035:42
1011.76:015:43
1111.76:005:43
1211.75:595:44
1311.85:585:44
1411.85:575:44
1511.85:565:45
1611.85:545:45
1711.95:535:46
1811.95:525:46
1911.95:515:46
2012.05:505:47
2112.05:495:47
2212.05:475:48
2312.05:465:48
2412.15:455:49
2512.15:445:49
2612.15:435:50
2712.15:425:50
2812.25:405:50
2912.25:395:51
3012.25:385:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.07 kWh/m².

For context, solar energy here swings from a low near 3.63 kWh/m² to a high of 5.79 kWh/m² in January across the year — September's 5.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Mbabane

In seasonPeak

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

Mbabane's monsoon runs October–March, when most of the year's rain falls.

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

Is September a good time to visit Mbabane?

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

7.4
Sightseeing
5th-best month of the year
5.9
Beach & pool
1st-best month of the year

September is one of the better times to visit Mbabane for general sightseeing.

What to pack for Mbabane in September

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

In September, Mbabane sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Mbabane 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 Mbabane peaks around December 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeDec 18UV 13Jul 10UV 5
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar12Extreme
Apr7Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7High
Sep9Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Mbabane 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 Mbabane is worst in July — around 43 µg/m³ PM2.5 (poor), about 3.9× the cleanest month (January, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateJul 1942 µg/m³Jan 1611 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar18Moderate
Apr26Moderate
May34Moderate
Jun36Poor
Jul43Poor
Aug40Poor
Sep32Moderate
Oct21Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Mbabane?

Mbabane sits at 26.3°S, 31.1°E, 1,209 m above sea level, in Eswatini. The nearest listed city is Lobamba, 18 km away.

LobambaRedhillManziniFernieEmpuluzuLukwatiniNhlazatjeBarberton

Topography around Mbabane

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

Within 3 km, the terrain around Mbabane has significant variations in elevation — a maximum elevation change of 462 m around an average of 1,241 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 991 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,718 m.

The land around Mbabane is covered by trees (47%), grassland (29%) and artificial surfaces (20%) within 3 km, grassland (57%) and trees (29%) within 16 km, and grassland (44%) and trees (39%) within 80 km.

3 km
462 m
16 km
991 m
80 km
1,718 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Lobamba 18 km · Redhill 31 km · Manzini 32 km · Fernie 35 km · Empuluzu 36 km · Lukwatini 42 km · Nhlazatje 46 km · Barberton 59 km

Eswatini travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type M
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,108
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
38%
of population, 2024
Homicide rate
12.5
per 100k, 2021
Road deaths
33.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Christian 90%other 8%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 Mbabane (-26.3167°, 31.1333°, elevation 1,209 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).