Nijmegen weather in September

In September, Nijmegen sees average daytime highs of 19°C and overnight lows near 11°C, with 61 mm of rain across 10.9 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 18% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Nijmegen's 4th-clearest and 9th-windiest month. For the whole year in context, see Nijmegen's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
61 mm
10.9 wet days
Daylight
12 h 24 min
6:19 AM – 6:43 PM
Cloud cover
67%
4th clearest
Wind
12 km/h
9th windiest
Solar energy
3 kWh/m²
Travel score
5.7
out of 10

Nijmegen is city in the Netherlands.

Air quality
Moderate
PM2.5 10.8 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 17°C by the end.

A typical September day in Nijmegen reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12113
22012
32012
42012
52012
62012
72012
82012
92012
102012
112012
121912
131911
141911
151911
161911
171911
181911
191911
201811
211811
221811
231811
241810
251810
261810
271710
281710
291710
301710

How September really feels in Nijmegen

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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Nijmegen weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6612.61.38.10.2
Feb / 5711.21.79.60.6
Mar10° / 5611.30.811.52.2
Apr14° / 4710.3013.64.1
May18° / 5911.7015.45.5
Jun21° / 12°6511.7016.45.9
Jul23° / 14°7813.30166.2
Aug22° / 14°7612.6014.46.2
Sep19° / 11°6110.9012.45.7
Oct14° / 6411.5010.44.0
Nov / 6211.90.48.61.8
Dec / 72131.67.60.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33565
43565
53664
63664
73664
83664
93664
103664
113565
123763
133664
143664
153664
163664
173664
183664
193664
203565
213565
223466
233466
243466
253367
263268
273169
283169
292971
302971

Chance of precipitation in September

Any precipitation

Nijmegen gets around 61 mm of rain over 10.9 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 37% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
237
337
436
536
636
736
836
936
1036
1136
1236
1336
1435
1535
1635
1736
1836
1936
2036
2137
2237
2338
2438
2539
2639
2740
2840
2941
3041

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15632111
25831101
35931100
46030100
5613090
6622990
7622990
8632890
9632890
10652780
11662680
12662680
13682570
14692470
15712360
16722350
17732250
18742240
19742240
20752230
21752230
22762220
23762220
24762220
25762220
26772210
27772210
28782110
29782110
30792010

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over September. Sunrise moves from 5:54 AM to 6:43 AM, and sunset from 7:19 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:547:19
213.35:567:16
313.35:577:14
413.25:597:12
513.16:017:09
613.16:027:07
713.06:047:04
812.96:067:02
912.96:077:00
1012.86:096:57
1112.76:116:55
1212.76:126:52
1312.66:146:50
1412.56:166:48
1512.56:176:45
1612.46:196:43
1712.36:216:40
1812.36:226:38
1912.26:246:35
2012.16:266:33
2112.16:286:31
2212.06:296:28
2311.96:316:26
2411.86:336:23
2511.86:346:21
2611.76:366:19
2711.66:386:16
2811.66:396:14
2911.56:416:11
3011.46:436:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3 kWh/m².

For context, solar energy here swings from a low near 0.58 kWh/m² to a high of 5.19 kWh/m² in June across the year — September's 3 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.5Moderate
33.5Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.2Moderate
113.2Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.0Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.8Moderate
212.8Moderate
222.7Moderate
232.7Moderate
242.6Moderate
252.6Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Nijmegen?

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

5.7
Sightseeing
4th-best month of the year
2.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Nijmegen for sightseeing.

What to pack for Nijmegen in September

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

In September, Nijmegen sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Nijmegen in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nijmegen peaks around July 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 6Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Nijmegen?

Nijmegen sits at 51.8°N, 5.9°E, 25 m above sea level, in The Netherlands. The nearest listed city is Lindenholt, 4.0 km away.

Topography around Nijmegen

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

Within 3 km, the terrain around Nijmegen has only modest variations in elevation — a maximum elevation change of 72 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 109 m; within 80 km, only modest variations in elevation — a maximum elevation change of 187 m.

The land around Nijmegen is covered by artificial surfaces (46%) and trees (25%) within 3 km, grassland (38%) and trees (23%) within 16 km, and grassland (36%), trees (28%) and cropland (22%) within 80 km.

3 km
72 m
16 km
109 m
80 km
187 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Lindenholt 4.0 km · Beuningen 6.0 km · Elst 9.0 km · Groesbeek 9.0 km · Wijchen 10 km · Huissen 12 km · Arnhem 16 km · Duiven 16 km

The Netherlands travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 84% of US
price level, 2025
GDP per capita
$73,684
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 624
Religion
none 54%Roman Catholic 20%Protestant 15%other 6%

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 Nijmegen (51.8425°, 5.8528°, elevation 25 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).