Manzini weather in September

In September, Manzini sees average daytime highs of 27°C and overnight lows near 15°C, with 36 mm of rain across 6 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 57% 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 Manzini's 5th-clearest and 1st-windiest month. For the whole year in context, see Manzini's year-round climate.

Daytime high
27°
8th warmest
Overnight low
15°
5th coldest
Rainfall
36 mm
6 wet days
Daylight
11 h 48 min
5:53 AM – 5:44 PM
Cloud cover
39%
5th clearest
Wind
10 km/h
1st windiest
Solar energy
4.9 kWh/m²
Travel score
7.5
out of 10

Manzini is city in Eswatini.

Founded
1885

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 27°C through the month.

A typical September day in Manzini reaches about 27°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 33°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12613
22614
32614
42614
52614
62614
72614
82614
92614
102614
112614
122714
132714
142714
152715
162715
172715
182715
192715
202715
212715
222715
232715
242715
252715
262715
272715
282715
292716
302716

Manzini weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°1321513.54.7
Feb29° / 20°10712.212.95.0
Mar29° / 19°9310.912.25.7
Apr27° / 17°496.811.47.3
May26° / 13°243.510.78.5
Jun24° / 10°112.210.49.1
Jul23° / 10°142.110.59.0
Aug25° / 12°223.811.18.5
Sep27° / 15°36611.87.5
Oct27° / 16°7210.712.66.5
Nov28° / 18°12013.613.35.7
Dec29° / 19°12414.713.65.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% 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 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27822
37723
47723
57624
67624
77525
87426
97426
107327
117129
127129
137030
146931
156931
166733
176634
186634
196535
206535
216535
226436
236337
246238
256238
266139
276040
285941
295842
305743

Chance of precipitation in September

Any precipitation

Manzini gets around 36 mm of rain over 6 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 20% and peaks near 27% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
113
214
314
414
515
615
716
816
917
1018
1118
1219
1319
1420
1520
1621
1721
1821
1922
2022
2123
2223
2324
2424
2525
2625
2726
2826
2927
3027

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 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732520
2722620
3722620
4722620
5712720
6692830
7682930
8673030
9663130
10653230
11633340
12623440
13613540
14603550
15583660
16573760
17553870
18523990
195040100
204840110
214740120
224541140
234441150
244341160
254240180
264040190
273940200
283840220
293739231
303739241

Wind in September

Winds average 10 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 10 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
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 6:11 AM to 5:37 AM, and sunset from 5:38 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:115:38
211.56:105:38
311.56:085:39
411.56:075:39
511.66:065:39
611.66:055:40
711.66:045:40
811.66:035:41
911.76:025:41
1011.76:005:42
1111.75:595:42
1211.75:585:42
1311.85:575:43
1411.85:565:43
1511.85:555:44
1611.85:535:44
1711.95:525:45
1811.95:515:45
1911.95:505:45
2012.05:495:46
2112.05:485:46
2212.05:465:47
2312.05:455:47
2412.15:445:48
2512.15:435:48
2612.15:425:49
2712.15:415:49
2812.25:395:49
2912.25:385:50
3012.25:375:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.9 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.71 kWh/m² in January across the year — September's 4.9 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Hazard calendar for Manzini

In seasonPeak

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

Manzini'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 Manzini?

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

7.5
Sightseeing
5th-best month of the year
7.4
Beach & pool
4th-best month of the year

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

What to pack for Manzini in September

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

In September, Manzini sees daytime highs around 27°C and nights near 15°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Manzini 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 Manzini 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 Manzini 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 Manzini 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 Manzini?

Manzini sits at 26.5°S, 31.4°E, 601 m above sea level, in Eswatini. The nearest listed city is Lobamba, 18 km away.

LobambaMbabaneFernieRedhillEmpuluzuLukwatiniNhlazatjePiet Retief

Topography around Manzini

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

Within 3 km, the terrain around Manzini has significant variations in elevation — a maximum elevation change of 298 m around an average of 611 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,009 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,824 m.

The land around Manzini is covered by trees (33%), artificial surfaces (27%) and grassland (25%) within 3 km, grassland (42%) and trees (26%) within 16 km, and trees (42%) and grassland (40%) within 80 km.

3 km
298 m
16 km
1,009 m
80 km
1,824 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Lobamba 18 km · Mbabane 32 km · Fernie 60 km · Redhill 61 km · Empuluzu 64 km · Lukwatini 74 km · Nhlazatje 78 km · Piet Retief 80 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 Manzini (-26.4988°, 31.38°, elevation 601 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).