Lokossa weather in September

In September, Lokossa sees average daytime highs of 29°C and overnight lows near 23°C, with 169 mm of rain across 25.3 wet days and about 12 hours of daylight. It is the 10th-warmest and 2nd-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 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 11 h 54 min by month's end. Set against the rest of the year, September is Lokossa's 9th-clearest and 7th-windiest month. For the whole year in context, see Lokossa's year-round climate.

Daytime high
29°
10th warmest
Overnight low
23°
3rd coldest
Rainfall
169 mm
25.3 wet days
Daylight
12 hours
6:46 AM – 6:49 PM
Cloud cover
82%
9th clearest
Wind
7 km/h
7th windiest
Solar energy
4.19 kWh/m²
Travel score
3.2
out of 10

Lokossa is commune of Benin.

Density
182/km²
people per km²

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 Lokossa 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 28°C and 31°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)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
233023
243023
253023
263023
273023
283023
293023
303023

How September really feels in Lokossa

Once humidity and wind are folded in, September averages 28 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
28
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.

Lokossa weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°195.811.74.2
Feb33° / 25°358.611.83.3
Mar33° / 25°6715.6122.8
Apr33° / 25°10019.412.12.8
May31° / 24°16624.912.32.7
Jun30° / 23°18826.412.43.0
Jul29° / 23°13923.512.33.7
Aug28° / 23°12320.512.24.1
Sep29° / 23°16925.3123.2
Oct30° / 23°15925.811.93.0
Nov32° / 24°6216.511.73.5
Dec32° / 24°256.711.64.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5595
6595
7595
8595
9595
10694
11694
12694
13694
14694
15793
16793
17793
18892
19892
20991
21991
221090
231090
241090
251189
261189
271189
281288
291288
301288

Chance of precipitation in September

Any precipitation

Lokossa gets around 169 mm of rain over 25.3 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 85% and peaks near 86% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
181
282
382
482
582
683
783
883
983
1084
1184
1284
1385
1485
1585
1685
1786
1886
1986
2086
2186
2286
2386
2486
2586
2686
2786
2886
2986
3086

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11981
21981
31981
41981
50991
60991
70991
80991
90982
100982
110982
120982
130982
140982
150982
160973
170973
180973
190964
200964
210955
220946
230946
240937
250928
260919
2709010
2808911
2908812
3008713

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over September. Sunrise moves from 6:49 AM to 6:44 AM, and sunset from 6:57 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:496:57
212.16:496:56
312.16:496:56
412.16:496:55
512.16:486:55
612.16:486:54
712.16:486:54
812.16:486:53
912.16:486:52
1012.16:476:52
1112.16:476:51
1212.16:476:51
1312.16:476:50
1412.06:476:50
1512.06:476:49
1612.06:466:49
1712.06:466:48
1812.06:466:47
1912.06:466:47
2012.06:466:46
2112.06:456:46
2212.06:456:45
2312.06:456:45
2412.06:456:44
2512.06:456:44
2612.06:456:43
2712.06:446:42
2812.06:446:42
2912.06:446:41
3011.96:446:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.19 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.53 kWh/m² in March across the year — September's 4.19 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Lokossa

In seasonPeak

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

Lokossa 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 Lokossa?

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

3.2
Sightseeing
7th-best month of the year
4.2
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Lokossa.

What to pack for Lokossa in September

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

In September, Lokossa sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

Sea temperature near Lokossa 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 58 km away) is warmest in May at about 29°C and coldest in August near 24°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
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul25Warm
Aug24Warm
Sep26Warm
Oct27Warm
Nov28Tropical
Dec28Tropical

UV index in Lokossa 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 Lokossa peaks around April 9 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highExtremeExtremeVery highApr 9UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Air quality in Lokossa 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 Lokossa is worst in January — around 111 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (August, 28 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 14109 µg/m³Aug 1228 µg/m³
PM2.5 (µg/m³)Level
Jan111Unhealthy
Feb87Unhealthy
Mar49Poor
Apr48Poor
May37Poor
Jun34Moderate
Jul29Moderate
Aug28Moderate
Sep33Moderate
Oct46Poor
Nov52Poor
Dec99Unhealthy
Location & terrain

Where is Lokossa?

Lokossa sits at 6.6°N, 1.7°E, 47 m above sea level, in Benin. The nearest listed city is Athiémé, 8.0 km away.

Topography around Lokossa

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

Within 3 km, the terrain around Lokossa has only modest variations in elevation — a maximum elevation change of 62 m around an average of 33 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 112 m; within 80 km, significant variations in elevation — a maximum elevation change of 271 m.

The land around Lokossa is covered by trees (51%) and artificial surfaces (22%) within 3 km, trees (65%) within 16 km, and trees (34%) and shrubs (20%) within 80 km.

3 km
62 m
16 km
112 m
80 km
271 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Athiémé 8.0 km · 19 km · Dogbo 19 km · Tabligbo 25 km · Djakotomé 29 km · Toviklin 31 km · Comé 32 km · Aplahoué 33 km

Benin travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,658
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
1.1
per 100k, 2017
Road deaths
26.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 406
Religion
Muslim 28%Roman Catholic 26%Protestant 14%Vodoun 12%

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 Lokossa (6.6387°, 1.7167°, elevation 47 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).