Montereau-Fault-Yonne weather in August

In August, Montereau-Fault-Yonne sees average daytime highs of 25°C and overnight lows near 14°C, with 56 mm of rain across 8.8 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Montereau-Fault-Yonne's 1st-clearest and 12th-windiest month. For the whole year in context, see Montereau-Fault-Yonne's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
56 mm
8.8 wet days
Daylight
14 h 06 min
5:48 AM – 7:57 PM
Cloud cover
59%
1st clearest
Wind
11 km/h
12th windiest
Solar energy
4.87 kWh/m²
Travel score
7.0
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical August day in Montereau-Fault-Yonne reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 31°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52615
62615
72615
82615
92615
102615
112615
122615
132515
142515
152515
162515
172514
182514
192514
202514
212514
222514
232414
242414
252414
262414
272414
282413
292313
302313
312313

How August really feels in Montereau-Fault-Yonne

Once humidity and wind are folded in, August 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

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

Montereau-Fault-Yonne weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5811.718.60.7
Feb / 529.71.39.91.3
Mar12° / 5211.10.511.63.1
Apr15° / 5110.5013.44.6
May19° / 10°6311.40155.8
Jun23° / 13°5110015.86.6
Jul25° / 15°548.7015.57.0
Aug25° / 14°568.8014.17.0
Sep21° / 11°508.2012.46.6
Oct16° / 6611.1010.64.7
Nov10° / 6111.70.392.3
Dec / 7512.70.98.20.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34654
44654
54654
64654
74654
84654
94555
104555
114654
124654
134654
144654
154654
164654
174654
184654
194654
204654
214555
224555
234456
244456
254357
264456
274456
284357
294357
304357
314357

Chance of precipitation in August

Any precipitation

Montereau-Fault-Yonne gets around 56 mm of rain over 8.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
429
529
629
729
830
930
1030
1130
1230
1330
1429
1529
1629
1729
1829
1929
2028
2128
2228
2328
2427
2527
2626
2726
2825
2925
3025
3124

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13840193
23840193
33939193
43939193
54038193
64038193
74137193
84137193
94237193
104236193
114236193
124236193
134236192
144336192
154336192
164336192
174336192
184436192
194436182
204535182
214635181
224734181
234833171
244933171
255132161
265231161
275430151
285430151
295629141
305828131
315828131

Wind in August

Winds average 11 km/h in August, the calmest month.

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

051015151015202531
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
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 5:27 AM to 6:09 AM, and sunset from 8:21 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.95:278:21
214.95:298:20
314.85:308:18
414.85:318:17
514.75:338:15
614.75:348:14
714.65:358:12
814.65:378:11
914.55:388:09
1014.55:398:07
1114.45:418:06
1214.45:428:04
1314.35:448:02
1414.35:458:00
1514.25:467:59
1614.15:487:57
1714.15:497:55
1814.05:517:53
1914.05:527:51
2013.95:537:49
2113.95:557:47
2213.85:567:45
2313.85:587:44
2413.75:597:42
2513.66:017:40
2613.66:027:38
2713.56:037:36
2813.56:057:33
2913.46:067:31
3013.46:087:29
3113.36:097:27

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.87 kWh/m².

For context, solar energy here swings from a low near 0.79 kWh/m² to a high of 5.65 kWh/m² in June across the year — August's 4.87 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.7Bright
204.7Bright
214.7Bright
224.6Bright
234.6Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.2Bright
314.2Bright
Planning a trip in August

Is August a good time to visit Montereau-Fault-Yonne?

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

7.0
Sightseeing
1st-best month of the year
6.3
Beach & pool
2nd-best month of the year

August is one of the better times to visit Montereau-Fault-Yonne for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Montereau-Fault-Yonne in August

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

In August, Montereau-Fault-Yonne sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Montereau-Fault-Yonne in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Montereau-Fault-Yonne peaks around July 15 at about 7 (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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 15UV 7Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Montereau-Fault-Yonne in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Montereau-Fault-Yonne 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 Montereau-Fault-Yonne?

Montereau-Fault-Yonne sits at 48.4°N, 3.0°E, 50 m above sea level, in France. The nearest listed city is Avon, 17 km away.

Topography around Montereau-Fault-Yonne

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Montereau-Fault-Yonne.

Within 3 km, the terrain around Montereau-Fault-Yonne has only modest variations in elevation — a maximum elevation change of 107 m around an average of 70 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 167 m; within 80 km, significant variations in elevation — a maximum elevation change of 316 m.

The land around Montereau-Fault-Yonne is covered by cropland (34%), trees (22%) and artificial surfaces (22%) within 3 km, trees (43%) and cropland (43%) within 16 km, and cropland (56%) and trees (32%) within 80 km.

3 km
107 m
16 km
167 m
80 km
316 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Avon 17 km · Fontainebleau 19 km · Dammarie-les-Lys 27 km · Melun 28 km · Le Mée-sur-Seine 29 km · Sens 32 km · Savigny-le-Temple 34 km · Moissy-Cramayel 37 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 Montereau-Fault-Yonne (48.3833°, 2.95°, elevation 50 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).