Mulanje weather in September

In September, Mulanje sees average daytime highs of 27°C and overnight lows near 16°C, with 13 mm of rain across 2.3 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°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 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Mulanje's 1st-clearest and 2nd-windiest month. For the whole year in context, see Mulanje's year-round climate.

Daytime high
27°
4th warmest
Overnight low
16°
5th coldest
Rainfall
13 mm
2.3 wet days
Daylight
11 h 54 min
5:35 AM – 5:30 PM
Cloud cover
30%
1st clearest
Wind
8 km/h
2nd windiest
Solar energy
6.04 kWh/m²
Travel score
8.0
out of 10

Mulanje is place in Southern Region, Malawi.

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 28°C by the end.

A typical September day in Mulanje reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52615
62615
72616
82716
92716
102716
112716
122716
132716
142716
152716
162716
172817
182817
192817
202817
212817
222817
232817
242817
252817
262817
272817
282917
292918
302918

Mulanje weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°33525.512.84.1
Feb27° / 20°22419.512.54.7
Mar27° / 19°16219.112.15.2
Apr25° / 17°5510.211.66.9
May24° / 15°164.811.38.2
Jun22° / 13°164.711.17.8
Jul22° / 13°236.111.17.5
Aug24° / 14°123.111.58.5
Sep27° / 16°132.311.98.0
Oct29° / 18°264.812.46.3
Nov30° / 20°8410.712.75.1
Dec28° / 20°23221.612.94.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28515
38515
48515
58515
68515
78515
88515
98515
108515
118515
128515
138614
148614
158614
168713
178713
188713
198812
208812
218812
228812
238812
248812
258713
268614
278614
288614
298614
308515

Chance of precipitation in September

Any precipitation

Mulanje gets around 13 mm of rain over 2.3 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 8% and peaks near 10% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
18
28
37
47
57
67
77
87
97
108
118
128
137
147
157
167
177
187
197
207
217
228
238
248
258
269
279
289
299
3010

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 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1712630
2712630
3702730
4692830
5692830
6682930
7663040
8653140
9653140
10643240
11643240
12633340
13613450
14603550
15593650
16583750
17573850
18553960
19544060
20544060
21524170
22514270
23494380
24484480
25464590
264445100
274346110
284246120
294146120
304046131

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 5:47 AM to 5:23 AM, and sunset from 5:28 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:475:28
211.75:465:28
311.75:465:28
411.75:455:29
511.75:445:29
611.85:435:29
711.85:425:29
811.85:425:29
911.85:415:29
1011.85:405:29
1111.85:395:29
1211.85:385:29
1311.95:375:29
1411.95:375:29
1511.95:365:30
1611.95:355:30
1711.95:345:30
1811.95:335:30
1912.05:325:30
2012.05:325:30
2112.05:315:30
2212.05:305:30
2312.05:295:30
2412.05:285:30
2512.15:285:31
2612.15:275:31
2712.15:265:31
2812.15:255:31
2912.15:245:31
3012.15:235:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.04 kWh/m².

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.4 kWh/m² in October across the year — September's 6.04 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
136.0Bright
146.0Intense
156.0Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Mulanje

In seasonPeak

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

Mulanje's monsoon runs December–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 Mulanje?

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

8.0
Sightseeing
3rd-best month of the year
8.3
Beach & pool
1st-best month of the year

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

What to pack for Mulanje in September

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

In September, Mulanje sees daytime highs around 27°C and nights near 16°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Mulanje in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mulanje peaks around January 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 15UV 15Jun 20UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep11Extreme
Oct13Extreme
Nov13Extreme
Dec15Extreme

Air quality in Mulanje 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 Mulanje is worst in September — around 65 µg/m³ PM2.5 (unhealthy), about 3.1× the cleanest month (January, 21 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateSep 1064 µg/m³Jan 1321 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb27Moderate
Mar31Moderate
Apr37Poor
May51Poor
Jun55Poor
Jul59Unhealthy
Aug62Unhealthy
Sep65Unhealthy
Oct43Poor
Nov27Moderate
Dec23Moderate
Location & terrain

Where is Mulanje?

Mulanje sits at 16.0°S, 35.5°E, 609 m above sea level, in Malawi. The nearest listed city is Milange, 30 km away.

BlantyreZombaNsanjeLiwondeMwanzaBalakaMorrumbala

Topography around Mulanje

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

Within 3 km, the terrain around Mulanje has significant variations in elevation — a maximum elevation change of 482 m around an average of 653 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,463 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,917 m.

The land around Mulanje is covered by trees (43%) and cropland (32%) within 3 km, cropland (49%) and trees (22%) within 16 km, and cropland (47%) within 80 km.

3 km
482 m
16 km
2,463 m
80 km
2,917 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Milange 30 km · Blantyre 59 km · Zomba 74 km · Nsanje 102 km · Liwonde 111 km · Mwanza 115 km · Balaka 131 km · Morrumbala 144 km

Malawi travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 53% of US
price level, 2025
GDP per capita
$672
2025
Happiness
3.3 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
1.8
per 100k, 2012
Road deaths
33.4
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 465
Religion
Protestant 34%other Christian 27%Roman Catholic 17%Muslim 14%

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 Mulanje (-16.0316°, 35.5°, elevation 609 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).