Photo: Henry Mühlpfordt · CC BY-SA 3.0 · Wikimedia Commons
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Climate guideThirty-year normals for Jena
Jena climate by month
Oceanic · CfbBest Jun · Aug–Sep
Annual mean10°day and night
Seasonal swing19°warmest vs coolest
Precipitation601 mm138 wet days a year
50.93° N, 11.59° EElevation 149 mUTC+1 · Central European Standard Time
When to goJena · weather score
Best timeJun · Aug–Sep
October: high / low15° / 6°
iSummary
What the weather is like
Jena has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 26° and nights 14°. January is the coolest month, with highs of 4° and lows of -2°. The difference between the warmest and the coolest month is about 19°.
About 601 mm of precipitation falls in an average year. July is the wettest month (74 mm, 14 wet days) and April the driest (44 mm, 8 wet days). Cloud cover ranges from 35% in August to 53% in December.
Compared with Berlin, the capital, Jena is 0.3° warmer on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 26° · July
- Coldest nights
- -2° · January
- Wettest month
- July
- Driest month
- April
- Clearest skies
- August · 35% cloud
- Longest day
- 16 h 30 min
- Shortest day
- 7 h 58 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 | 4° | 6° | 10° | 16° | 20° | 23° | 26° | 25° | 20° | 15° | 8° | 5° |
| Average low | -2° | -1° | 1° | 4° | 8° | 12° | 14° | 14° | 10° | 6° | 3° | 0° |
| Precipitation | 32 mm | 32 mm | 44 mm | 44 mm | 63 mm | 60 mm | 74 mm | 66 mm | 52 mm | 38 mm | 51 mm | 45 mm |
| Wet days (≥1 mm) | 13.2 | 10 | 11.2 | 8.4 | 12.5 | 12.2 | 13.8 | 12.4 | 9.4 | 10.2 | 10.9 | 13.6 |
| Cloud cover | 49% | 49% | 47% | 41% | 40% | 39% | 36% | 35% | 41% | 45% | 52% | 53% |
| Daylight | 8h 25 | 10h 02 | 11h 49 | 13h 48 | 15h 31 | 16h 30 | 16h 06 | 14h 36 | 12h 41 | 10h 47 | 8h 58 | 7h 58 |
| Month score | 19 | 27 | 25 | 63 | 66 | 67 | 63 | 67 | 73 | 52 | 23 | 16 |
ivMonth by month
Jena in every month
January19
4° / -2°
32 mm · 13.2 wet days
February27
6° / -1°
32 mm · 10 wet days
March25
10° / 1°
44 mm · 11.2 wet days
April63
16° / 4°
44 mm · 8.4 wet days
May66
20° / 8°
63 mm · 12.5 wet days
June67
23° / 12°
60 mm · 12.2 wet days
July63
26° / 14°
74 mm · 13.8 wet days
August67
25° / 14°
66 mm · 12.4 wet days
September73
20° / 10°
52 mm · 9.4 wet days
October52
15° / 6°
38 mm · 10.2 wet days
November23
8° / 3°
51 mm · 10.9 wet days
December16
5° / 0°
45 mm · 13.6 wet days