Saint-Amand-les-Eaux weather in September

In September, Saint-Amand-les-Eaux sees average daytime highs of 19°C and overnight lows near 11°C, with 50 mm of rain across 9.8 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 18°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 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Saint-Amand-les-Eaux's 3rd-clearest and 9th-windiest month. For the whole year in context, see Saint-Amand-les-Eaux's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
50 mm
9.8 wet days
Daylight
12 h 24 min
6:29 AM – 6:52 PM
Cloud cover
67%
3rd clearest
Wind
12 km/h
9th windiest
Solar energy
3.19 kWh/m²
Travel score
6.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 18°C by the end.

A typical September day in Saint-Amand-les-Eaux 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 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12113
22113
32112
42112
52012
62012
72012
82012
92012
102012
112012
122012
132012
141912
151911
161911
171911
181911
191911
201911
211911
221911
231811
241811
251811
261811
271811
281810
291710
301710

How September really feels in Saint-Amand-les-Eaux

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.

Saint-Amand-les-Eaux weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6412.318.30.5
Feb / 5611.11.39.70.9
Mar11° / 5511.50.711.52.4
Apr14° / 4711.2013.54.0
May18° / 6312.2015.25.3
Jun21° / 12°6010.7016.16.1
Jul23° / 14°6311015.86.5
Aug23° / 14°6811.4014.36.5
Sep19° / 11°509.8012.46.0
Oct15° / 6011010.54.2
Nov10° / 6311.90.48.82.0
Dec / 7413.217.90.8

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 15% of September, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23466
33565
43565
53466
63466
73466
83367
93367
103268
113268
123367
133367
143268
153268
163367
173367
183367
193367
203367
213367
223367
233367
243367
253268
263268
273268
283070
292971
302971

Chance of precipitation in September

Any precipitation

Saint-Amand-les-Eaux gets around 50 mm of rain over 9.8 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
332
431
531
631
732
832
932
1032
1132
1233
1333
1433
1533
1633
1733
1833
1933
2033
2134
2234
2334
2434
2535
2635
2736
2836
2936
3036

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
35930101
46029101
56029101
66128101
7642790
8642790
9652690
10662590
11672580
12682480
13702370
14712270
15732160
16732160
17742150
18752050
19762040
20762040
21772030
22762130
23772120
24772120
25772120
26772120
27782110
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.

05101520151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 6:06 AM to 6:52 AM, and sunset from 7:26 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:067:26
213.36:077:24
313.26:097:22
413.16:117:19
513.16:127:17
613.06:147:15
713.06:157:13
812.96:177:10
912.86:187:08
1012.86:207:06
1112.76:217:03
1212.66:237:01
1312.66:256:59
1412.56:266:56
1512.46:286:54
1612.46:296:52
1712.36:316:50
1812.26:336:47
1912.26:346:45
2012.16:366:43
2112.06:376:40
2212.06:396:38
2311.96:406:36
2411.96:426:33
2511.86:446:31
2611.76:456:29
2711.76:476:26
2811.66:486:24
2911.56:506:22
3011.56:526:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.19 kWh/m².

For context, solar energy here swings from a low near 0.66 kWh/m² to a high of 5.34 kWh/m² in June across the year — September's 3.19 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.0Moderate
213.0Moderate
222.9Moderate
232.9Moderate
242.8Moderate
252.8Moderate
262.7Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Saint-Amand-les-Eaux?

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

6.0
Sightseeing
4th-best month of the year
2.7
Beach & pool
4th-best month of the year

September is a reasonable time to visit Saint-Amand-les-Eaux for sightseeing.

What to pack for Saint-Amand-les-Eaux in September

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

In September, Saint-Amand-les-Eaux sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Saint-Amand-les-Eaux 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 Saint-Amand-les-Eaux peaks around July 13 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Saint-Amand-les-Eaux 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 Saint-Amand-les-Eaux is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodApr 1316 µg/m³Dec 1010 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Good
Mar15Moderate
Apr16Moderate
May14Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Saint-Amand-les-Eaux?

Saint-Amand-les-Eaux sits at 50.4°N, 3.4°E, 20 m above sea level, in France. The nearest listed city is Valenciennes, 12 km away.

Topography around Saint-Amand-les-Eaux

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Amand-les-Eaux.

Within 3 km, the terrain around Saint-Amand-les-Eaux has only modest variations in elevation — a maximum elevation change of 36 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, significant variations in elevation — a maximum elevation change of 451 m.

The land around Saint-Amand-les-Eaux is covered by trees (40%), grassland (26%) and cropland (20%) within 3 km, cropland (34%), trees (33%) and grassland (20%) within 16 km, and cropland (53%) within 80 km.

3 km
36 m
16 km
181 m
80 km
451 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Valenciennes 12 km · Denain 13 km · Péruwelz 13 km · Tournai 18 km · Sin-le-Noble 23 km · Dour 25 km · Boussu 26 km · Douai 26 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

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 Saint-Amand-les-Eaux (50.4472°, 3.4308°, elevation 20 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).