Dedza weather in September

In September, Dedza sees average daytime highs of 25°C and overnight lows near 14°C, with 6 mm of rain across 1.5 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 66% 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 Dedza's 1st-clearest and 2nd-windiest month. For the whole year in context, see Dedza's year-round climate.

Daytime high
25°
4th warmest
Overnight low
14°
5th coldest
Rainfall
6 mm
1.5 wet days
Daylight
11 h 54 min
5:39 AM – 5:35 PM
Cloud cover
29%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
6.53 kWh/m²
Travel score
8.7
out of 10

Dedza is human settlement.

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 24°C in the first days to 26°C by the end.

A typical September day in Dedza reaches about 25°C in the afternoon and slips back to 14°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 28°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°151015202530
Avg high (°C)Avg low (°C)
12412
22413
32413
42413
52413
62413
72413
82413
92513
102513
112514
122514
132514
142514
152514
162514
172514
182514
192614
202614
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615

Dedza weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 17°34727.712.83.9
Feb25° / 17°25922.412.54.4
Mar25° / 17°20122.212.14.9
Apr24° / 15°5410.211.77.0
May23° / 12°133.611.38.2
Jun21° / 10°51.611.28.1
Jul21° / 10°62.211.27.9
Aug23° / 11°51.311.58.6
Sep25° / 14°61.511.98.7
Oct27° / 16°326.212.37.5
Nov27° / 18°10013.912.76.0
Dec25° / 17°26824.912.84.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58614
68614
78614
88614
98515
108515
118515
128515
138515
148416
158515
168515
178515
188515
198614
208614
218713
228713
238713
248713
258713
268713
278713
288713
298713
308713

Chance of precipitation in September

Any precipitation

Dedza gets around 6 mm of rain over 1.5 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 5% and peaks near 9% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
55
65
75
85
95
105
115
125
135
145
155
165
175
184
194
204
215
225
235
246
256
267
277
288
299
309

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19820
29730
39730
49730
59640
69640
79640
89550
99550
109550
119550
129550
139550
149550
159550
169550
179550
189640
199640
209640
219550
229550
239550
249460
259460
269370
279181
289091
2989101
3088111

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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 5:51 AM to 5:29 AM, and sunset from 5:34 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:515:34
211.75:505:34
311.75:495:34
411.85:495:34
511.85:485:34
611.85:475:34
711.85:465:34
811.85:465:34
911.85:455:34
1011.85:445:34
1111.95:435:34
1211.95:425:34
1311.95:425:34
1411.95:415:35
1511.95:405:35
1611.95:395:35
1711.95:395:35
1811.95:385:35
1912.05:375:35
2012.05:365:35
2112.05:355:35
2212.05:355:35
2312.05:345:35
2412.05:335:35
2512.05:325:35
2612.15:325:35
2712.15:315:35
2812.15:305:35
2912.15:295:35
3012.15:295:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.53 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.88 kWh/m² in October across the year — September's 6.53 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.2Intense
46.2Intense
56.2Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.6Intense
186.6Intense
196.6Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
Planning a trip in September

Hazard calendar for Dedza

In seasonPeak

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

Dedza sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Dedza's monsoon runs December–March, when most of the year's rain falls.

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

Is September a good time to visit Dedza?

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

8.7
Sightseeing
1st-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Dedza in September

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

In September, Dedza sees daytime highs around 25°C and nights near 14°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Dedza in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dedza peaks around January 19 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 19UV 16Jun 19UV 9
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Dedza 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 Dedza is worst in September — around 33 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1232 µg/m³Dec 2310 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr15Moderate
May19Moderate
Jun21Moderate
Jul24Moderate
Aug30Moderate
Sep33Moderate
Oct24Moderate
Nov14Moderate
Dec10Good
Location & terrain

Where is Dedza?

Dedza sits at 14.4°S, 34.3°E, 1,608 m above sea level, in Malawi. The nearest listed city is Ulongué, 38 km away.

NtcheuSalimaMonkey BayLilongweBalakaMangochiMponela

Topography around Dedza

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

Within 3 km, the terrain around Dedza has large variations in elevation — a maximum elevation change of 638 m around an average of 1,607 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,124 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,693 m.

The land around Dedza is covered by cropland (49%) and trees (20%) within 3 km, cropland (73%) within 16 km, and cropland (54%) within 80 km.

3 km
638 m
16 km
1,124 m
80 km
1,693 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Ulongué 38 km · Ntcheu 59 km · Salima 68 km · Monkey Bay 71 km · Lilongwe 75 km · Balaka 95 km · Mangochi 101 km · Mponela 114 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 Dedza (-14.3779°, 34.3332°, elevation 1,608 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).