Kwale weather in September

In September, Kwale sees average daytime highs of 30°C and overnight lows near 23°C, with 271 mm of rain across 28.5 wet days and about 12 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Kwale's 12th-clearest and 7th-windiest month. For the whole year in context, see Kwale's year-round climate.

Daytime high
30°
10th warmest
Overnight low
23°
5th coldest
Rainfall
271 mm
28.5 wet days
Daylight
12 hours
6:28 AM – 6:30 PM
Cloud cover
88%
12th clearest
Wind
5 km/h
7th windiest
Solar energy
3.79 kWh/m²
Travel score
2.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Kwale reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How September really feels in Kwale

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kwale weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 23°21511.73.1
Feb35° / 24°419.211.82.4
Mar34° / 24°12019.8122.2
Apr33° / 24°18523.612.12.4
May32° / 24°24027.612.32.4
Jun30° / 23°27028.512.32.7
Jul29° / 23°25928.412.33.1
Aug29° / 23°24026.812.23.2
Sep30° / 23°27128.5122.8
Oct30° / 23°25628.411.92.7
Nov32° / 23°8514.611.73.4
Dec34° / 23°184.611.73.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 3% of September, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7298
8298
9298
10298
11298
12397
13397
14397
15397
16397
17397
18496
19496
20496
21496
22496
23496
24496
25496
26496
27496
28496
29496
30496

Chance of precipitation in September

Any precipitation

Kwale gets around 271 mm of rain over 28.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 95% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
494
594
695
795
895
995
1095
1195
1295
1395
1495
1595
1695
1795
1895
1996
2096
2196
2296
2396
2496
2596
2696
2796
2896
2996
3096

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1991
2982
3982
4982
5982
6982
7982
8982
9973
10973
11973
12973
13973
14964
15964
16964
17964
18964
19964
20955
21955
22955
23955
24946
25946
26937
27928
28928
29919
309010

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 6 minutes over September. Sunrise moves from 6:31 AM to 6:25 AM, and sunset from 6:37 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:316:37
212.16:306:37
312.16:306:36
412.16:306:36
512.16:306:35
612.16:306:35
712.16:306:34
812.16:296:34
912.16:296:33
1012.16:296:33
1112.16:296:32
1212.16:296:32
1312.06:286:31
1412.06:286:31
1512.06:286:30
1612.06:286:30
1712.06:276:29
1812.06:276:28
1912.06:276:28
2012.06:276:27
2112.06:276:27
2212.06:266:26
2312.06:266:26
2412.06:266:25
2512.06:266:25
2612.06:266:24
2712.06:256:24
2812.06:256:23
2912.06:256:23
3012.06:256:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.79 kWh/m².

For context, solar energy here swings from a low near 3.57 kWh/m² to a high of 5.37 kWh/m² in January across the year — September's 3.79 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in September

Hazard calendar for Kwale

In seasonPeak

In September, Kwale sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kwale's rainy season runs April–October, when most of the year's rain falls.

Kwale sees seasonal dust haze (December–April), heaviest in February.

Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Kwale?

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

2.8
Sightseeing
6th-best month of the year
3.7
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Kwale.

What to pack for Kwale in September

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

In September, Kwale sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Kwale 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 Kwale peaks around March 24 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highMar 24UV 12Jan 11UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Kwale 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 Kwale is worst in January — around 201 µg/m³ PM2.5 (very unhealthy), about 3.5× the cleanest month (August, 58 µg/m³).

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

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyVery unhealthyJan 11201 µg/m³Aug 1058 µg/m³
PM2.5 (µg/m³)Level
Jan201Very unhealthy
Feb171Very unhealthy
Mar100Unhealthy
Apr98Unhealthy
May83Unhealthy
Jun73Unhealthy
Jul59Unhealthy
Aug58Unhealthy
Sep70Unhealthy
Oct92Unhealthy
Nov108Unhealthy
Dec197Very unhealthy
Location & terrain

Where is Kwale?

Kwale sits at 5.7°N, 6.4°E, 22 m above sea level, in Nigeria. The nearest listed city is Oguta, 42 km away.

Topography around Kwale

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

Within 3 km, the terrain around Kwale has only modest variations in elevation — a maximum elevation change of 23 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 37 m; within 80 km, significant variations in elevation — a maximum elevation change of 383 m.

The land around Kwale is covered by grassland (49%) and artificial surfaces (26%) within 3 km, trees (58%) and grassland (38%) within 16 km, and trees (69%) and grassland (21%) within 80 km.

3 km
23 m
16 km
37 m
80 km
383 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Oguta 42 km · Atani 49 km · Ihiala 50 km · Ogwashi-Uku 53 km · Ughelli 53 km · Ozubulu 54 km · Onitsha 63 km · Asaba 64 km

Nigeria travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 13% of US
price level, 2025
GDP per capita
$1,224
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
15.7
per 100k, 2023
Road deaths
20.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 569
Religion
Muslim 54%other Christian 35%Roman Catholic 11%other 1%

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 Kwale (5.7077°, 6.434°, elevation 22 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).