Climate guideThirty-year normals for Chelles, Île-de-France
Chelles climate by month
Oceanic · CfbBest Jun–Jul · Sep
Annual mean12°day and night
Seasonal swing16°warmest vs coolest
Precipitation708 mm141 wet days a year
48.88° N, 2.59° EElevation 44 mUTC+2 · Central European Summer Time
When to goChelles · weather score
Best timeJun–Jul · Sep
October: high / low17° / 9°
iSummary
What the weather is like
Chelles has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 26° and nights 15°. January is the coolest month, with highs of 7° and lows of 2°. The difference between the warmest and the coolest month is about 16°.
About 708 mm of precipitation falls in an average year. January is the wettest month (58 mm, 13 wet days) and September the driest (49 mm, 9 wet days). Cloud cover ranges from 34% in July to 54% in December.
Compared with Paris, the capital, Chelles is 0.1° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 26° · August
- Coldest nights
- 2° · January
- Wettest month
- January
- Driest month
- September
- Clearest skies
- July · 34% cloud
- Longest day
- 16 h 09 min
- Shortest day
- 8 h 17 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 7° | 9° | 13° | 16° | 20° | 24° | 26° | 26° | 22° | 17° | 11° | 8° |
| Average low | 2° | 2° | 4° | 6° | 10° | 13° | 15° | 15° | 11° | 9° | 5° | 3° |
| Precipitation | 58 mm | 48 mm | 54 mm | 52 mm | 72 mm | 59 mm | 65 mm | 58 mm | 49 mm | 69 mm | 56 mm | 68 mm |
| Wet days (≥1 mm) | 13.3 | 11.6 | 12.1 | 10 | 12.9 | 11.4 | 11.3 | 11.4 | 9.3 | 12.2 | 12.3 | 13.1 |
| Cloud cover | 53% | 48% | 45% | 42% | 41% | 38% | 34% | 34% | 38% | 46% | 49% | 54% |
| Daylight | 8h 42 | 10h 11 | 11h 50 | 13h 41 | 15h 16 | 16h 09 | 15h 47 | 14h 25 | 12h 39 | 10h 52 | 9h 12 | 8h 17 |
| Month score | 17 | 23 | 38 | 63 | 65 | 70 | 68 | 68 | 75 | 58 | 26 | 17 |
ivMonth by month
Chelles in every month
January17
7° / 2°
58 mm · 13.3 wet days
February23
9° / 2°
48 mm · 11.6 wet days
March38
13° / 4°
54 mm · 12.1 wet days
April63
16° / 6°
52 mm · 10 wet days
May65
20° / 10°
72 mm · 12.9 wet days
June70
24° / 13°
59 mm · 11.4 wet days
July68
26° / 15°
65 mm · 11.3 wet days
August68
26° / 15°
58 mm · 11.4 wet days
September75
22° / 11°
49 mm · 9.3 wet days
October58
17° / 9°
69 mm · 12.2 wet days
November26
11° / 5°
56 mm · 12.3 wet days
December17
8° / 3°
68 mm · 13.1 wet days