Roissy-en-Brie weather in October

In October, Roissy-en-Brie sees average daytime highs of 16°C and overnight lows near 8°C, with 66 mm of rain across 11.5 wet days and about 10.5 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 14°C by the end. The sky is clear or mostly clear about 17% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of October to 9 h 42 min by month's end. Set against the rest of the year, October is Roissy-en-Brie's 8th-clearest and 6th-windiest month. For the whole year in context, see Roissy-en-Brie's year-round climate.

Daytime high
16°
6th warmest
Overnight low
7th coldest
Rainfall
66 mm
11.5 wet days
Daylight
10 h 30 min
7:19 AM – 5:50 PM
Cloud cover
71%
8th clearest
Wind
13 km/h
6th windiest
Solar energy
2.08 kWh/m²
Travel score
4.6
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 14°C by the end.

A typical October day in Roissy-en-Brie reaches about 16°C in the afternoon and slips back to 8°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11810
21810
31810
41810
51810
61710
71710
8179
9179
10179
11179
12169
13169
14169
15169
16168
17168
18158
19158
20158
21158
22158
23158
24148
25147
26147
27147
28147
29147
30137
31137

How October really feels in Roissy-en-Brie

Once humidity and wind are folded in, October 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

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

Roissy-en-Brie weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5811.90.98.50.7
Feb / 53101.29.81.2
Mar12° / 5511.10.611.63.0
Apr15° / 5310.60.113.44.5
May19° / 10°6511.20155.7
Jun22° / 13°5610.5015.96.4
Jul25° / 15°559.4015.56.9
Aug25° / 14°599.3014.27.0
Sep21° / 11°518.5012.46.5
Oct16° / 6611.5010.54.6
Nov10° / 62120.38.92.2
Dec / 7713.10.98.10.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33070
43070
53070
63169
73169
83169
93169
103169
113169
123268
133268
143268
153367
163367
173367
183367
193268
203367
213169
223169
233169
243169
253070
263070
273070
282971
292971
302971
312971

Chance of precipitation in October

Any precipitation

Roissy-en-Brie gets around 66 mm of rain over 11.5 wet days in October. 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 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
437
537
637
737
837
936
1036
1136
1236
1336
1436
1536
1636
1737
1837
1937
2037
2137
2237
2337
2438
2538
2638
2738
2838
2938
3038
3138

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
177212
278202
378202
478202
579192
680182
780182
882171
982171
1083161
1183161
1284151
1384151
1486140
1586140
1687130
1787130
1888120
1989110
2089110
2190100
2290100
239190
249190
259280
269370
279370
289460
299460
309550
319550

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over October. Sunrise moves from 6:55 AM to 7:42 AM, and sunset from 6:21 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:556:21
211.46:576:19
311.36:586:17
411.27:006:15
511.27:016:13
611.17:036:11
711.17:056:09
811.07:066:07
910.97:086:04
1010.97:096:02
1110.87:116:00
1210.87:125:58
1310.77:145:56
1410.67:155:54
1510.67:175:52
1610.57:195:50
1710.57:205:48
1810.47:225:46
1910.47:235:45
2010.37:255:43
2110.27:265:41
2210.27:285:39
2310.17:305:37
2410.17:315:35
2510.07:335:34
2610.07:345:32
279.97:365:30
289.87:385:28
299.87:395:27
309.77:415:25
319.77:425:23

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.08 kWh/m².

For context, solar energy here swings from a low near 0.77 kWh/m² to a high of 5.6 kWh/m² in June across the year — October's 2.08 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.6Moderate
32.6Moderate
42.5Moderate
52.5Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.0Moderate
192.0Moderate
202.0Dim
211.9Dim
221.9Dim
231.9Dim
241.8Dim
251.8Dim
261.7Dim
271.7Dim
281.7Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in October

Is October a good time to visit Roissy-en-Brie?

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

4.6
Sightseeing
6th-best month of the year
0.7
Beach & pool
6th-best month of the year

October is a reasonable time to visit Roissy-en-Brie for sightseeing.

What to pack for Roissy-en-Brie in October

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

In October, Roissy-en-Brie sees daytime highs around 16°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Roissy-en-Brie in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Roissy-en-Brie 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
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Roissy-en-Brie in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Roissy-en-Brie is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2316 µg/m³Nov 1711 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar16Moderate
Apr16Moderate
May14Moderate
Jun14Moderate
Jul11Good
Aug12Good
Sep12Good
Oct11Good
Nov11Good
Dec11Good
Location & terrain

Where is Roissy-en-Brie?

Roissy-en-Brie sits at 48.8°N, 2.6°E, 101 m above sea level, in France. The nearest listed city is Pontault-Combault, 3.0 km away.

Topography around Roissy-en-Brie

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Roissy-en-Brie.

Within 3 km, the terrain around Roissy-en-Brie has only modest variations in elevation — a maximum elevation change of 42 m around an average of 113 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 128 m; within 80 km, significant variations in elevation — a maximum elevation change of 262 m.

The land around Roissy-en-Brie is covered by trees (59%) and artificial surfaces (24%) within 3 km, trees (46%), artificial surfaces (25%) and cropland (20%) within 16 km, and cropland (53%) and trees (34%) within 80 km.

3 km
42 m
16 km
128 m
80 km
262 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Pontault-Combault 3.0 km · Ozoir-la-Ferrière 3.0 km · Marne La Vallée 5.0 km · Lognes 5.0 km · Le Plessis-Trévise 6.0 km · Torcy 7.0 km · Noisiel 7.0 km · Champs-sur-Marne 7.0 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 Roissy-en-Brie (48.7916°, 2.6475°, elevation 101 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).