Pemba weather in September

In September, Pemba sees average daytime highs of 29°C and overnight lows near 22°C, with 11 mm of rain across 3.4 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 81% of the time in September, and the air most often feels muggy.

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 Pemba's 1st-clearest and 8th-windiest month. For the whole year in context, see Pemba's year-round climate.

Daytime high
29°
9th warmest
Overnight low
22°
4th coldest
Rainfall
11 mm
3.4 wet days
Daylight
11 h 54 min
5:14 AM – 5:10 PM
Cloud cover
25%
1st clearest
Wind
11 km/h
8th windiest
Solar energy
6.17 kWh/m²
Travel score
7.0
out of 10

Pemba is city in Mozambique.

Founded
1904

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 29°C through the month.

A typical September day in Pemba reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72821
82821
92821
102921
112921
122921
132921
142921
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922

How September really feels in Pemba

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Pemba weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°25224.912.73.1
Feb30° / 25°21323.112.43.0
Mar30° / 25°20624.712.13.3
Apr30° / 24°9516.411.74.6
May29° / 23°23611.46.4
Jun28° / 21°103.411.37.6
Jul27° / 21°92.911.37.9
Aug28° / 21°114.211.67.7
Sep29° / 22°113.411.97.0
Oct30° / 23°185.212.36.0
Nov31° / 25°42912.64.9
Dec31° / 25°1662012.73.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7937
8946
9937
10946
11946
12946
13946
14946
15946
16946
17946
18946
19946
20937
21946
22946
23946
24946
25946
26946
27937
28937
29937
30937

Chance of precipitation in September

Any precipitation

Pemba gets around 11 mm of rain over 3.4 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 11% and peaks near 12% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
112
212
312
412
512
612
712
812
912
1012
1112
1212
1312
1412
1511
1611
1711
1810
1910
2010
2110
2210
2311
2411
2511
2611
2712
2812
2912
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1113824
2113815
3112825
4112816
5111826
6111826
7110827
8110827
909838
1009829
1108839
12078310
13078211
14068212
15068113
16058114
17057916
18047818
19047620
20047521
21037324
22037126
23036928
24036730
25036433
26036235
27036037
28035740
29035542
30035344

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:25 AM to 5:04 AM, and sunset from 5:10 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:255:10
211.85:255:10
311.85:245:10
411.85:235:10
511.85:225:10
611.85:225:10
711.85:215:10
811.85:205:10
911.85:205:10
1011.95:195:10
1111.95:185:10
1211.95:175:10
1311.95:175:10
1411.95:165:10
1511.95:155:10
1611.95:145:10
1711.95:145:10
1812.05:135:10
1912.05:125:10
2012.05:115:10
2112.05:115:10
2212.05:105:10
2312.05:095:10
2412.05:085:10
2512.05:085:10
2612.15:075:10
2712.15:065:10
2812.15:065:10
2912.15:055:10
3012.15:045:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.17 kWh/m².

For context, solar energy here swings from a low near 4.55 kWh/m² to a high of 6.91 kWh/m² in November across the year — September's 6.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
76.0Bright
86.0Bright
96.0Intense
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for Pemba

In seasonPeak

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

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

Pemba'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 Pemba?

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

7.0
Sightseeing
4th-best month of the year
8.7
Beach & pool
1st-best month of the year

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

What to pack for Pemba in September

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

In September, Pemba sees daytime highs around 29°C and nights near 22°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Pemba in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in March at about 29°C and coldest in August near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Pemba 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 Pemba peaks around February 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 highExtremeFeb 11UV 15Jun 21UV 9
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec14Extreme
Location & terrain

Where is Pemba?

Pemba sits at 13.0°S, 40.5°E, 50 m above sea level, in Mozambique. The nearest listed city is Macomia, 92 km away.

Namapa-eratiMontepuezNacalaMuedaMocímboa da PraiaMocímboa

Topography around Pemba

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

Within 3 km, the terrain around Pemba has only modest variations in elevation — a maximum elevation change of 105 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 142 m; within 80 km, large variations in elevation — a maximum elevation change of 672 m.

The land around Pemba is covered by water (41%) and artificial surfaces (37%) within 3 km, water (55%) and grassland (24%) within 16 km, and water (36%) and trees (32%) within 80 km.

3 km
105 m
16 km
142 m
80 km
672 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Macomia 92 km · Chiúre 92 km · Namapa-erati 111 km · Montepuez 165 km · Nacala 178 km · Mueda 180 km · Mocímboa da Praia 181 km · Mocímboa 185 km

Mozambique travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / M
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$627
2025
Happiness
5.3 / 10
World Happiness, 2025
Safe drinking water
28%
of population, 2024
Homicide rate
3.6
per 100k, 2011
Road deaths
30
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 465
Religion
Catholic 27%Islam 19%Pentecostal 17%Saio/Zione 16%

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 Pemba (-12.974°, 40.5177°, elevation 50 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).