Romorantin-Lanthenay weather in September

In September, Romorantin-Lanthenay sees average daytime highs of 22°C and overnight lows near 11°C, with 50 mm of rain across 7.8 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 20°C by the end. The sky is clear or mostly clear about 26% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Romorantin-Lanthenay's 3rd-clearest and 10th-windiest month. For the whole year in context, see Romorantin-Lanthenay's year-round climate.

Daytime high
22°
4th warmest
Overnight low
11°
9th coldest
Rainfall
50 mm
7.8 wet days
Daylight
12 h 18 min
6:37 AM – 6:57 PM
Cloud cover
61%
3rd clearest
Wind
11 km/h
10th windiest
Solar energy
3.74 kWh/m²
Travel score
6.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 20°C by the end.

A typical September day in Romorantin-Lanthenay reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 28°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12413
22413
32413
42413
52413
62412
72412
82312
92312
102312
112312
122312
132312
142212
152211
162211
172211
182211
192211
202211
212111
222111
232111
242111
252111
262111
272010
282010
292010
302010

How September really feels in Romorantin-Lanthenay

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.

Romorantin-Lanthenay weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6011.50.98.71.1
Feb / 5010.119.91.7
Mar13° / 5310.50.311.63.6
Apr16° / 5811013.34.9
May20° / 10°6911.5014.95.9
Jun24° / 13°519.3015.76.8
Jul26° / 15°518.3015.36.9
Aug26° / 15°468.2014.17.0
Sep22° / 11°507.8012.46.9
Oct17° / 6911.2010.65.1
Nov11° / 6612.10.19.12.7
Dec / 7012.40.78.31.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54555
64456
74456
84357
94357
104456
114357
124357
134258
144159
154159
164060
174060
184060
193961
203961
213763
223763
233664
243565
253466
263466
273367
283268
293169
303169

Chance of precipitation in September

Any precipitation

Romorantin-Lanthenay gets around 50 mm of rain over 7.8 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 27% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
122
222
322
422
523
623
723
824
924
1025
1125
1225
1326
1426
1527
1627
1727
1828
1928
2028
2128
2229
2329
2430
2531
2632
2733
2834
2935
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 (%)
16227101
2632791
3632791
4652780
5662770
6662770
7672760
8672760
9682750
10682750
11682750
12692740
13702640
14702640
15712540
16712540
17722530
18732430
19732430
20732430
21742330
22742330
23742330
24742330
25742240
26742240
27742240
28752140
29752140
30762040

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 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 102 minutes over September. Sunrise moves from 6:17 AM to 6:57 AM, and sunset from 7:29 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:177:29
213.16:187:27
313.16:197:25
413.06:217:23
513.06:227:21
612.96:247:18
712.96:257:16
812.86:267:14
912.76:287:12
1012.76:297:10
1112.66:307:08
1212.66:327:06
1312.56:337:04
1412.56:347:02
1512.46:367:00
1612.36:376:57
1712.36:396:55
1812.26:406:53
1912.26:416:51
2012.16:436:49
2112.06:446:47
2212.06:466:45
2311.96:476:43
2411.96:486:40
2511.86:506:38
2611.86:516:36
2711.76:536:34
2811.66:546:32
2911.66:556:30
3011.56:576:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.74 kWh/m².

For context, solar energy here swings from a low near 0.91 kWh/m² to a high of 5.74 kWh/m² in June across the year — September's 3.74 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.1Bright
84.1Bright
94.0Bright
104.0Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.6Moderate
183.6Moderate
193.5Moderate
203.5Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.2Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Romorantin-Lanthenay?

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

6.9
Sightseeing
2nd-best month of the year
4.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Romorantin-Lanthenay for sightseeing.

What to pack for Romorantin-Lanthenay in September

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

In September, Romorantin-Lanthenay sees daytime highs around 22°C and nights near 11°C. Worth packing: light clothes. About 8 days see rain.

light clothes

UV index in Romorantin-Lanthenay in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Romorantin-Lanthenay peaks around July 24 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 24UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun7High
Jul7High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Romorantin-Lanthenay?

Romorantin-Lanthenay sits at 47.4°N, 1.8°E, 95 m above sea level, in France. The nearest listed city is Vierzon, 29 km away.

Topography around Romorantin-Lanthenay

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

Within 3 km, the terrain around Romorantin-Lanthenay has only modest variations in elevation — a maximum elevation change of 44 m around an average of 100 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, significant variations in elevation — a maximum elevation change of 402 m.

The land around Romorantin-Lanthenay is covered by trees (46%), grassland (27%) and artificial surfaces (21%) within 3 km, trees (68%) within 16 km, and cropland (46%) and trees (39%) within 80 km.

3 km
44 m
16 km
98 m
80 km
402 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Vierzon 29 km · Blois 41 km · Olivet 56 km · Bourges 58 km · Orléans 61 km · Saint-Jean-de-la-Ruelle 61 km · Châteauroux 62 km · Saint-Jean-de-Braye 63 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 Romorantin-Lanthenay (47.3667°, 1.75°, elevation 95 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).