Swedru weather in September

In September, Swedru sees average daytime highs of 29°C and overnight lows near 23°C, with 131 mm of rain across 25.1 wet days and about 12 hours of daylight. It is the 10th-warmest and 4th-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 2% 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 Swedru's 8th-clearest and 3rd-windiest month. For the whole year in context, see Swedru's year-round climate.

Daytime high
29°
10th warmest
Overnight low
23°
3rd coldest
Rainfall
131 mm
25.1 wet days
Daylight
12 hours
5:56 AM – 5:58 PM
Cloud cover
77%
8th clearest
Wind
9 km/h
3rd windiest
Solar energy
4.93 kWh/m²
Travel score
3.5
out of 10

Swedru is town in the Central region of Ghana.

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 Swedru reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Swedru

Once humidity and wind are folded in, September averages 17 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
17
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.

Swedru weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°3910.411.74.2
Feb33° / 25°4712.511.83.4
Mar33° / 25°7517.6123.0
Apr32° / 25°9419.512.13.0
May31° / 24°15825.512.22.9
Jun29° / 24°20625.812.33.3
Jul28° / 23°10622.712.34.1
Aug28° / 23°7320.512.24.5
Sep29° / 23°13125.1123.5
Oct30° / 23°14426.511.93.1
Nov31° / 24°842111.73.3
Dec31° / 24°4814.311.74.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11189
21189
31189
41288
51288
61288
71387
81387
91486
101486
111585
121684
131684
141684
151684
161684
171783
181783
191882
201882
211882
221882
231882
242080
252080
262179
272278
282278
292377
302377

Chance of precipitation in September

Any precipitation

Swedru gets around 131 mm of rain over 25.1 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 83% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
179
280
380
480
581
681
781
881
981
1081
1181
1281
1381
1481
1581
1682
1782
1883
1983
2084
2185
2285
2386
2486
2587
2687
2788
2888
2988
3089

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11990
21990
301000
401000
501000
61990
71990
81981
91981
101981
111981
121981
131981
141981
151981
161981
171972
181972
191972
201972
210982
220982
230973
240973
250973
260964
270964
280955
290955
300946

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:59 AM to 5:53 AM, and sunset from 6:06 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:596:06
212.15:596:05
312.15:596:05
412.15:596:04
512.15:596:04
612.15:586:03
712.15:586:03
812.15:586:02
912.15:586:02
1012.15:586:01
1112.15:576:01
1212.15:576:00
1312.05:576:00
1412.05:575:59
1512.05:565:59
1612.05:565:58
1712.05:565:57
1812.05:565:57
1912.05:565:56
2012.05:555:56
2112.05:555:55
2212.05:555:55
2312.05:555:54
2412.05:555:54
2512.05:545:53
2612.05:545:53
2712.05:545:52
2812.05:545:52
2912.05:545:51
3012.05:535:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.93 kWh/m².

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 5.81 kWh/m² in March across the year — September's 4.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Swedru

In seasonPeak

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

Swedru sees seasonal dust haze (January–April), heaviest in February.

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

Is September a good time to visit Swedru?

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

3.5
Sightseeing
5th-best month of the year
4.4
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Swedru.

What to pack for Swedru in September

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

In September, Swedru sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Swedru in September

The nearest coast averages about 24°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 20 km away) is warmest in May at about 28°C and coldest in August near 23°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Tropical
Jun27Warm
Jul24Warm
Aug23Refreshing
Sep24Warm
Oct27Warm
Nov28Tropical
Dec28Warm

UV index in Swedru 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 Swedru peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highMar 23UV 13Dec 17UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Swedru 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 Swedru is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 5.6× the cleanest month (October, 12 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorJan 1865 µg/m³Oct 1012 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb54Poor
Mar30Moderate
Apr28Moderate
May16Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Moderate
Oct12Good
Nov17Moderate
Dec49Poor
Location & terrain

Where is Swedru?

Swedru sits at 5.5°N, 0.7°W, 74 m above sea level, in Ghana. The nearest listed city is Winneba, 22 km away.

Gbawe

Topography around Swedru

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

Within 3 km, the terrain around Swedru has only modest variations in elevation — a maximum elevation change of 83 m around an average of 64 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 262 m; within 80 km, large variations in elevation — a maximum elevation change of 833 m.

The land around Swedru is covered by trees (50%) and artificial surfaces (41%) within 3 km, trees (77%) within 16 km, and trees (59%) and water (27%) within 80 km.

3 km
83 m
16 km
262 m
80 km
833 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Winneba 22 km · Buduburam 25 km · Apam 28 km · Kasoa 31 km · Amanfrom 33 km · Asamankese 36 km · Mandela 40 km · Gbawe 43 km

Ghana travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$3,257
2025
Happiness
4.6 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
1.8
per 100k, 2022
Road deaths
25.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 540
Religion
Christian 71%Muslim 20%other 5%traditionalist 3%

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 Swedru (5.5371°, -0.6998°, elevation 74 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. 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. 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).