Rijau weather in September

In September, Rijau sees average daytime highs of 30°C and overnight lows near 23°C, with 151 mm of rain across 19.6 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 3rd-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 6% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Rijau's 10th-clearest and 11th-windiest month. For the whole year in context, see Rijau's year-round climate.

Daytime high
30°
11th warmest
Overnight low
23°
6th coldest
Rainfall
151 mm
19.6 wet days
Daylight
12 h 06 min
6:31 AM – 6:35 PM
Cloud cover
74%
10th clearest
Wind
7 km/h
11th windiest
Solar energy
4.77 kWh/m²
Travel score
3.8
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 Rijau 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 28°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112923
122923
132923
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How September really feels in Rijau

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.

Rijau weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 20°0011.44.0
Feb37° / 23°00.111.62.3
Mar39° / 26°20.511.90.9
Apr38° / 27°184.212.20.9
May35° / 26°651112.52.2
Jun32° / 24°8012.112.63.5
Jul30° / 23°15821.812.63.6
Aug29° / 23°27926.512.43.4
Sep30° / 23°15119.612.13.8
Oct32° / 22°397.411.84.3
Nov35° / 21°00.111.53.5
Dec34° / 20°0011.44.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11090
21189
31288
41387
51387
61486
71585
81684
91783
101882
112080
122080
132278
142377
152377
162575
172674
182674
192872
202971
212971
223169
233169
243367
253466
263565
273664
283763
293763
303763

Chance of precipitation in September

Any precipitation

Rijau gets around 151 mm of rain over 19.6 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 65% and peaks near 81% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
181
280
379
478
577
675
774
873
972
1071
1170
1269
1368
1467
1566
1665
1764
1863
1962
2061
2160
2259
2357
2456
2555
2653
2752
2850
2949
3048

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1991
2991
3991
4982
5982
6982
7982
8982
9973
10973
11973
12964
13964
14955
15955
16946
17946
18937
19937
20928
21928
22919
23919
249010
259010
268911
278911
288812
298812
308713

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 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
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 6:32 AM to 6:31 AM, and sunset from 6:45 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:326:45
212.26:326:45
312.26:326:44
412.26:326:43
512.26:326:43
612.26:326:42
712.26:326:41
812.16:326:41
912.16:326:40
1012.16:326:39
1112.16:326:39
1212.16:326:38
1312.16:326:37
1412.16:326:36
1512.16:326:36
1612.16:316:35
1712.16:316:34
1812.06:316:34
1912.06:316:33
2012.06:316:32
2112.06:316:32
2212.06:316:31
2312.06:316:30
2412.06:316:30
2512.06:316:29
2612.06:316:28
2711.96:316:28
2811.96:316:27
2911.96:316:26
3011.96:316:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.77 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 6.82 kWh/m² in March across the year — September's 4.77 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.6Bright
94.6Bright
104.6Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Rijau

In seasonPeak

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

Rijau's monsoon runs July–September, when most of the year's rain falls.

Rijau sees seasonal dust haze (January–June), heaviest in March.

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

Is September a good time to visit Rijau?

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

3.8
Sightseeing
4th-best month of the year
5.2
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Rijau.

What to pack for Rijau in September

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

In September, Rijau sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Rijau 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 Rijau peaks around August 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 18UV 12Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb8Very high
Mar11Extreme
Apr11Extreme
May10Very high
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec7High

Air quality in Rijau 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 Rijau is worst in February — around 103 µg/m³ PM2.5 (unhealthy), about 5.4× the cleanest month (July, 19 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModeratePoorUnhealthyFeb 12102 µg/m³Jul 2319 µg/m³
PM2.5 (µg/m³)Level
Jan95Unhealthy
Feb103Unhealthy
Mar86Unhealthy
Apr62Unhealthy
May35Moderate
Jun27Moderate
Jul19Moderate
Aug20Moderate
Sep26Moderate
Oct45Poor
Nov62Unhealthy
Dec89Unhealthy
Location & terrain

Where is Rijau?

Rijau sits at 11.1°N, 5.3°E, 358 m above sea level, in Nigeria. The nearest listed city is Zuru, 37 km away.

KontagoraGummiTeginaJegaTambuwalSofo-Birnin-Gwari

Topography around Rijau

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

Within 3 km, the terrain around Rijau has only modest variations in elevation — a maximum elevation change of 160 m around an average of 367 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 236 m; within 80 km, significant variations in elevation — a maximum elevation change of 509 m.

The land around Rijau is covered by cropland (52%) and shrubs (22%) within 3 km, cropland (85%) within 16 km, and cropland (66%) within 80 km.

3 km
160 m
16 km
236 m
80 km
509 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Zuru 37 km · Ibeto 70 km · Kontagora 81 km · Gummi 117 km · Tegina 154 km · Jega 157 km · Tambuwal 159 km · Sofo-Birnin-Gwari 167 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 Rijau (11.1039°, 5.2556°, elevation 358 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).