Climate guideThirty-year normals for Hem, France
Hem climate by month
Oceanic · CfbBest May–Jun · Sep
Annual mean11°day and night
Seasonal swing15°warmest vs coolest
Precipitation806 mm154 wet days a year
50.65° N, 3.19° EElevation 31 mUTC+1 · Central European Standard Time
When to goHem · weather score
Best timeMay–Jun · Sep
October: high / low15° / 8°
iSummary
What the weather is like
Hem has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 24° and nights 14°. January is the coolest month, with highs of 7° and lows of 2°. The difference between the warmest and the coolest month is about 15°.
About 806 mm of precipitation falls in an average year. December is the wettest month (77 mm, 15 wet days) and April the driest (52 mm, 10 wet days). Cloud cover ranges from 36% in July to 54% in December.
Compared with Paris, the capital, Hem is 2.3° cooler on a August afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 24° · August
- Coldest nights
- 2° · January
- Wettest month
- December
- Driest month
- April
- Clearest skies
- July · 36% cloud
- Longest day
- 16 h 27 min
- Shortest day
- 8 h 00 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° | 8° | 11° | 15° | 19° | 21° | 24° | 24° | 20° | 15° | 10° | 7° |
| Average low | 2° | 2° | 4° | 6° | 9° | 12° | 14° | 14° | 11° | 8° | 5° | 3° |
| Precipitation | 68 mm | 52 mm | 64 mm | 52 mm | 66 mm | 70 mm | 71 mm | 67 mm | 67 mm | 76 mm | 76 mm | 77 mm |
| Wet days (≥1 mm) | 14.1 | 12.6 | 11.2 | 9.8 | 12 | 11.9 | 14.7 | 13.8 | 11.4 | 13.1 | 14.3 | 14.8 |
| Cloud cover | 51% | 49% | 47% | 42% | 42% | 41% | 36% | 36% | 41% | 45% | 50% | 54% |
| Daylight | 8h 27 | 10h 03 | 11h 49 | 13h 47 | 15h 29 | 16h 27 | 16h 03 | 14h 34 | 12h 41 | 10h 47 | 9h 00 | 8h 00 |
| Month score | 16 | 20 | 31 | 56 | 67 | 67 | 65 | 65 | 69 | 48 | 18 | 15 |
ivMonth by month
Hem in every month
January16
7° / 2°
68 mm · 14.1 wet days
February20
8° / 2°
52 mm · 12.6 wet days
March31
11° / 4°
64 mm · 11.2 wet days
April56
15° / 6°
52 mm · 9.8 wet days
May67
19° / 9°
66 mm · 12 wet days
June67
21° / 12°
70 mm · 11.9 wet days
July65
24° / 14°
71 mm · 14.7 wet days
August65
24° / 14°
67 mm · 13.8 wet days
September69
20° / 11°
67 mm · 11.4 wet days
October48
15° / 8°
76 mm · 13.1 wet days
November18
10° / 5°
76 mm · 14.3 wet days
December15
7° / 3°
77 mm · 14.8 wet days