Jena Weather

Jena has a humid continental climate ” title=”Inversion (meteorology)”>inversion in winter (quite cold nights under −20 °C (−4 °F)) and heat and inadequate air circulation in summer. Annual precipitation is 585 millimeters (23.0 in) with moderate rainfall throughout the year. Light snowfall mainly occurs from December through February, but snow cover does not usually remain for long. During the Middle Ages, Jena was famous for growing wine on its slopes. Nowadays, the next commercial wine-growing areas are situated 20 km (12 mi) down Saale river. Due to its distance to coastal areas and position in the Saale valley, wind speeds tend to be very low; predominant direction is SW.

Average Temperature
Jan
37 °F
3 °C
Feb
47 °F
9 °C
Mar
50 °F
10 °C
Apr
60 °F
16 °C
May
59 °F
15 °C
Jun
77 °F
25 °C
Jul
73 °F
23 °C
Aug
75 °F
24 °C
Sep
66 °F
19 °C
Oct
61 °F
16 °C
Nov
45 °F
7 °C
Dec
43 °F
6 °C
Humidity
Jan
75%
Feb
71%
Mar
70%
Apr
65%
May
73%
Jun
67%
Jul
66%
Aug
65%
Sep
70%
Oct
76%
Nov
82%
Dec
78%
Rain
Jan
28mm
Feb
6mm
Mar
25mm
Apr
18mm
May
41mm
Jun
202mm
Jul
31mm
Aug
40mm
Sep
28mm
Oct
29mm
Nov
24mm
Dec
19mm
Clouds
Jan
87%
Feb
71%
Mar
75%
Apr
38%
May
64%
Jun
39%
Jul
62%
Aug
57%
Sep
61%
Oct
70%
Nov
84%
Dec
72%
Sun
Jan
1UVI
Feb
2UVI
Mar
2UVI
Apr
4UVI
May
4UVI
Jun
7UVI
Jul
5UVI
Aug
5UVI
Sep
4UVI
Oct
2UVI
Nov
1UVI
Dec
0UVI