Monkey Bay weather in September

In September, Monkey Bay sees average daytime highs of 27°C and overnight lows near 22°C, with 1 mm of rain across 0.3 wet days and about 11.9 hours of daylight. It is the 7th-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 82% of the time in September, and the air most often feels humid.

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 Monkey Bay's 1st-clearest and 7th-windiest month. For the whole year in context, see Monkey Bay's year-round climate.

Daytime high
27°
7th warmest
Overnight low
22°
5th coldest
Rainfall
1 mm
0.3 wet days
Daylight
11 h 54 min
5:37 AM – 5:32 PM
Cloud cover
22%
1st clearest
Wind
13 km/h
7th windiest
Solar energy
6.34 kWh/m²
Travel score
8.7
out of 10

Monkey Bay is human settlement in 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 Monkey Bay reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52621
62622
72622
82622
92622
102622
112622
122722
132722
142722
152722
162722
172722
182723
192723
202723
212723
222823
232823
242823
252823
262823
272823
282823
292823
302824

Monkey Bay weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°37727.612.73.8
Feb27° / 24°28122.412.54.2
Mar27° / 24°21822.112.14.7
Apr27° / 23°559.311.77.1
May26° / 21°51.711.48.7
Jun24° / 20°31.111.29.1
Jul23° / 19°41.511.38.8
Aug24° / 20°10.411.59.2
Sep27° / 22°10.311.98.7
Oct29° / 24°132.112.37.1
Nov29° / 25°619.212.75.6
Dec28° / 25°27324.212.84.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1946
2946
3946
4946
5946
6946
7946
8946
9946
10937
11928
12928
13928
14928
15928
16928
17928
18928
19928
20928
21928
22928
23937
24937
25937
26937
27937
28928
29928
30928

Chance of precipitation in September

Any precipitation

Monkey Bay gets around 1 mm of rain over 0.3 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 1% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
111
121
131
141
151
161
171
181
191
201
211
221
232
242
252
262
272
283
293
303

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1436546
2436546
3435556
4433576
5432577
6431578
7330598
8328609
9327619
103266110
113256111
123246211
132236411
142226412
152216413
162206513
172186614
181176715
191166716
201156816
211146817
221136818
231136818
241126819
251116919
261116820
271116721
281116721
291116622
301116523

Wind in September

Winds average 13 km/h in September.

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

051015151015202530
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
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 5:48 AM to 5:26 AM, and sunset from 5:32 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:485:32
211.75:485:32
311.75:475:32
411.85:465:32
511.85:455:32
611.85:455:32
711.85:445:32
811.85:435:32
911.85:425:32
1011.85:425:32
1111.95:415:32
1211.95:405:32
1311.95:395:32
1411.95:395:32
1511.95:385:32
1611.95:375:32
1711.95:365:32
1811.95:355:32
1912.05:355:32
2012.05:345:32
2112.05:335:33
2212.05:325:33
2312.05:325:33
2412.05:315:33
2512.05:305:33
2612.15:295:33
2712.15:295:33
2812.15:285:33
2912.15:275:33
3012.15:265:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.34 kWh/m².

For context, solar energy here swings from a low near 4.63 kWh/m² to a high of 6.74 kWh/m² in October across the year — September's 6.34 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Intense
56.0Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.2Intense
116.2Intense
126.2Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.4Intense
186.4Intense
196.4Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
Planning a trip in September

Hazard calendar for Monkey Bay

In seasonPeak

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

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

Monkey Bay'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 Monkey Bay?

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

8.7
Sightseeing
4th-best month of the year
8.7
Beach & pool
2nd-best month of the year

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

What to pack for Monkey Bay in September

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

In September, Monkey Bay sees daytime highs around 27°C and nights near 22°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Monkey Bay 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 Monkey Bay peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 20UV 15Jun 19UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov12Extreme
Dec14Extreme

Air quality in Monkey Bay 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 Monkey Bay is worst in August — around 46 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (December, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodAug 2346 µg/m³Dec 219 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr14Moderate
May17Moderate
Jun22Moderate
Jul28Moderate
Aug46Poor
Sep45Poor
Oct28Moderate
Nov13Moderate
Dec9Good
Location & terrain

Where is Monkey Bay?

Monkey Bay sits at 14.1°S, 34.9°E, 484 m above sea level, in Malawi. The nearest listed city is Mangochi, 58 km away.

MangochiSalimaDedzaMandimbaNtcheuLichingaUlonguéBalaka

Topography around Monkey Bay

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

Within 3 km, the terrain around Monkey Bay has significant variations in elevation — a maximum elevation change of 486 m around an average of 540 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 660 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,695 m.

The land around Monkey Bay is covered by water (32%) and trees (26%) within 3 km, water (65%) within 16 km, and cropland (29%), water (25%) and grassland (20%) within 80 km.

3 km
486 m
16 km
660 m
80 km
1,695 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Mangochi 58 km · Salima 60 km · Dedza 71 km · Mandimba 85 km · Ntcheu 87 km · Lichinga 92 km · Ulongué 93 km · Balaka 100 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 Monkey Bay (-14.0824°, 34.9165°, elevation 484 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).