Warri weather in September

In September, Warri sees average daytime highs of 28°C and overnight lows near 23°C, with 331 mm of rain across 29.7 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 28°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 Warri's 12th-clearest and 6th-windiest month. For the whole year in context, see Warri's year-round climate.

Daytime high
28°
10th warmest
Overnight low
23°
4th coldest
Rainfall
331 mm
29.7 wet days
Daylight
12 hours
6:30 AM – 6:32 PM
Cloud cover
90%
12th clearest
Wind
6 km/h
6th windiest
Solar energy
3.51 kWh/m²
Travel score
2.9
out of 10

Warri is Local government areas in Delta State,in Nigeria..

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 28°C through the month.

A typical September day in Warri reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°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 on par with August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Warri

Once humidity and wind are folded in, September averages 10 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
10
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.

Warri 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
Jan32° / 23°5914.111.73.5
Feb32° / 24°9618.611.82.8
Mar32° / 25°19827.3122.4
Apr31° / 24°26728.412.12.3
May31° / 24°32429.712.22.5
Jun29° / 23°33029.512.32.8
Jul28° / 23°32929.212.33.3
Aug28° / 23°27427.912.23.5
Sep28° / 23°33129.7122.9
Oct30° / 23°35730.711.92.6
Nov31° / 23°17825.311.72.8
Dec32° / 23°6215.411.73.7

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 2% of September, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1397
2397
3397
4298
5298
6298
7298
8298
9298
10298
11298
12199
13199
14199
15199
16199
17199
18199
19199
20199
21298
22298
23298
24298
25298
26298
27298
28298
29298
30298

Chance of precipitation in September

Any precipitation

Warri gets around 331 mm of rain over 29.7 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 99% and peaks near 100% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
297
397
498
598
698
798
898
998
1098
1198
1298
1399
1499
1599
1699
1799
1899
1999
2099
2199
2299
2399
24100
25100
26100
27100
28100
29100
30100

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1973
2964
3964
4964
5964
6964
7955
8955
9955
10946
11946
12937
13937
14928
15919
16919
179010
188911
198812
208713
218614
228515
238416
248317
258218
268218
278119
288020
297921
307822

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
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 6:34 AM to 6:28 AM, and sunset from 6:40 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:346:40
212.16:336:39
312.16:336:39
412.16:336:38
512.16:336:38
612.16:336:37
712.16:326:37
812.16:326:36
912.16:326:36
1012.16:326:35
1112.16:326:35
1212.16:316:34
1312.06:316:34
1412.06:316:33
1512.06:316:33
1612.06:306:32
1712.06:306:32
1812.06:306:31
1912.06:306:31
2012.06:306:30
2112.06:296:30
2212.06:296:29
2312.06:296:29
2412.06:296:28
2512.06:296:28
2612.06:286:27
2712.06:286:27
2812.06:286:26
2912.06:286:26
3012.06:286:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.51 kWh/m².

For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 5.1 kWh/m² in January across the year — September's 3.51 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Hazard calendar for Warri

In seasonPeak

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

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

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

Is September a good time to visit Warri?

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

2.9
Sightseeing
5th-best month of the year
3.5
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Warri.

What to pack for Warri in September

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

In September, Warri sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. About 30 days see rain.

light clothesrain gear

Sea temperature near Warri in September

The nearest coast averages about 27°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 44 km away) is warmest in March at about 30°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
Mar30Tropical
Apr30Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug26Warm
Sep27Warm
Oct28Warm
Nov29Tropical
Dec29Tropical

UV index in Warri 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 Warri peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 22UV 13Dec 22UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Warri 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 Warri is worst in January — around 118 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (August, 30 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 16116 µg/m³Aug 1630 µg/m³
PM2.5 (µg/m³)Level
Jan118Unhealthy
Feb101Unhealthy
Mar63Unhealthy
Apr57Unhealthy
May49Poor
Jun43Poor
Jul35Moderate
Aug30Moderate
Sep35Poor
Oct47Poor
Nov57Unhealthy
Dec102Unhealthy
Location & terrain

Where is Warri?

Warri sits at 5.5°N, 5.8°E, 6 m above sea level, in Nigeria. The nearest listed city is Ughelli, 28 km away.

KwaleYenagoaBenin CityAgborOgwashi-Uku

Topography around Warri

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

Within 3 km, the terrain around Warri has only modest variations in elevation — a maximum elevation change of 19 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 156 m.

The land around Warri is covered by artificial surfaces (55%) within 3 km, trees (41%) and mangroves (24%) within 16 km, and trees (53%) within 80 km.

3 km
19 m
16 km
38 m
80 km
156 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Ughelli 28 km · Burutu 32 km · Sapele 43 km · Kwale 79 km · Yenagoa 87 km · Benin City 92 km · Agbor 95 km · Ogwashi-Uku 113 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 Warri (5.5174°, 5.7501°, elevation 6 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).