Roissy-en-Brie weather in May

In May, Roissy-en-Brie sees average daytime highs of 19°C and overnight lows near 10°C, with 65 mm of rain across 11.2 wet days and about 15 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

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

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Roissy-en-Brie's 6th-clearest and 8th-windiest month. For the whole year in context, see Roissy-en-Brie's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
8th coldest
Rainfall
65 mm
11.2 wet days
Daylight
15 hours
5:15 AM – 8:17 PM
Cloud cover
68%
6th clearest
Wind
12 km/h
8th windiest
Solar energy
5.28 kWh/m²
Travel score
5.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Roissy-en-Brie reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1178
2178
3178
4178
5178
6189
7189
8189
9189
10189
11189
12189
13189
14189
15199
16199
171910
181910
191910
201910
211910
222010
232010
242010
252011
262011
272011
282011
292011
302111
312111

How May really feels in Roissy-en-Brie

Once humidity and wind are folded in, May 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

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22872
32872
42872
52872
62872
72971
83070
93070
103070
113268
123268
133268
143268
153268
163268
173367
183367
193367
203466
213466
223466
233367
243367
253367
263367
273466
283466
293466
303466
313466

Chance of precipitation in May

Any precipitation

Roissy-en-Brie gets around 65 mm of rain over 11.2 wet days in May. 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 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
342
442
542
641
741
840
940
1039
1139
1239
1338
1438
1537
1636
1736
1835
1934
2034
2134
2234
2334
2434
2534
2634
2735
2835
2936
3037
3137

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May 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 (%)
19640
29640
39550
49460
59460
69370
79280
89280
99190
109190
1190100
1290100
1389101
1488111
1588111
1687121
1787121
1887121
1986131
2084142
2184142
2283152
2381163
2481163
2579174
2678184
2776195
2875205
2973216
3071227
3170237

Wind in May

Winds average 12 km/h in May.

Across May, 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.

051015151015202531
Wind speed (km/h)Feels
113light 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
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 5:38 AM to 4:59 AM, and sunset from 7:55 PM to 8:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:387:55
214.35:367:57
314.45:347:58
414.55:338:00
514.55:318:01
614.65:298:03
714.65:288:04
814.75:268:06
914.75:258:07
1014.85:238:08
1114.85:228:10
1214.95:208:11
1314.95:198:13
1414.95:178:14
1515.05:168:15
1615.05:158:17
1715.15:138:18
1815.15:128:19
1915.25:118:21
2015.25:108:22
2115.25:088:23
2215.35:078:25
2315.35:068:26
2415.45:058:27
2515.45:048:28
2615.45:038:29
2715.55:028:31
2815.55:018:32
2915.55:008:33
3015.64:598:34
3115.64:598:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.28 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 — May's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

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

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

5.7
Sightseeing
5th-best month of the year
2.3
Beach & pool
5th-best month of the year

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

What to pack for Roissy-en-Brie in May

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

In May, Roissy-en-Brie sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Roissy-en-Brie in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).