Monthly climate in Altenau, Lower Saxony, Germany

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Altenau features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 18 °C (64 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 849 mm (33.4 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually. Altenau enjoys an average of 3334 hours of sunshine throughout the year, and daylight varies from 7 hours 52 minutes to 16 hours 33 minutes per day.

Monthly average temperatures in Altenau, Lower Saxony, Germany §

The warmest months in Altenau are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (63 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 2 °C (33 - 36 °F) throughout the day. On average each year, Altenau experiences 19 days above 25 °C (77.0 °F) and 73 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Altenau, Lower Saxony, Germany. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 12°C
(54°F)
16°C
(61°F)
20°C
(68°F)
25°C
(77°F)
28°C
(83°F)
31°C
(89°F)
34°C
(93°F)
34°C
(93°F)
30°C
(86°F)
24°C
(76°F)
18°C
(65°F)
12°C
(54°F)
Mean maximum 10°C
(50°F)
12°C
(54°F)
17°C
(62°F)
22°C
(72°F)
25°C
(77°F)
27°C
(81°F)
29°C
(85°F)
30°C
(87°F)
27°C
(81°F)
21°C
(70°F)
15°C
(60°F)
11°C
(52°F)
Average high 2°C
(37°F)
4°C
(39°F)
8°C
(46°F)
12°C
(54°F)
16°C
(62°F)
22°C
(71°F)
22°C
(72°F)
23°C
(73°F)
18°C
(65°F)
13°C
(56°F)
7°C
(45°F)
4°C
(39°F)
Daily mean 0°C
(33°F)
1°C
(34°F)
4°C
(39°F)
8°C
(46°F)
12°C
(54°F)
17°C
(63°F)
17°C
(64°F)
18°C
(64°F)
14°C
(57°F)
10°C
(50°F)
5°C
(41°F)
2°C
(36°F)
Average low -2°C
(29°F)
-2°C
(29°F)
0°C
(33°F)
3°C
(38°F)
7°C
(45°F)
12°C
(54°F)
13°C
(55°F)
13°C
(56°F)
9°C
(49°F)
7°C
(45°F)
3°C
(37°F)
0°C
(33°F)
Mean minimum -10°C
(14°F)
-9°C
(16°F)
-6°C
(21°F)
-4°C
(25°F)
0°C
(33°F)
6°C
(43°F)
8°C
(46°F)
7°C
(46°F)
4°C
(39°F)
1°C
(33°F)
-3°C
(27°F)
-6°C
(22°F)
Minimum -20°C
(-3°F)
-17°C
(2°F)
-15°C
(6°F)
-6°C
(22°F)
-1°C
(30°F)
2°C
(36°F)
5°C
(42°F)
6°C
(43°F)
0°C
(33°F)
-2°C
(29°F)
-5°C
(24°F)
-11°C
(12°F)

Compare climate in Altenau with other places

Compare temperature, precipitation, sunshine, UV index in Altenau, Lower Saxony, Germany with other places around the world.

Monthly average precipitation in Altenau, Lower Saxony, Germany §

Altenau usually has the most precipitation in June, July and August, with an average of 13 rainy days and 84 mm (3.3 inches) of precipitation per month. The driest months in Altenau are April, September and November. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Altenau, Lower Saxony, Germany. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 73 (2.9) 72 (2.8) 73 (2.9) 45 (1.8) 74 (2.9) 86 (3.4) 87 (3.4) 78 (3.1) 60 (2.4) 77 (3.0) 47 (1.9) 77 (3.0)
Average precipitation days (≥ 1 mm) 13 12 15 9 12 12 13 15 11 15 11 16

Monthly sunshine hours in Altenau, Lower Saxony, Germany §

The sunniest months in Altenau are May, June and July, when the sun shines an average of 12 hours 54 minutes a day. Least sunny months in Altenau: January, November and December receive an average of 4 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Altenau, Lower Saxony, Germany. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 98 193 267 344 382 399 406 381 314 251 168 127
Mean daily daylight hours 8h 23m 9h 57m 11h 55m 13h 54m 15h 39m 16h 33m 16h 4m 14h 30m 12h 35m 10h 36m 8h 49m 7h 52m

Solar UV radiation in Altenau, Lower Saxony, Germany §

Altenau experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Altenau UV Index data.

Average daily maximum UV levels by month for Altenau, Lower Saxony, Germany. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 4 5 7 8 8 7 6 4 2 1

Detailed Monthly Weather Insights for Altenau, Lower Saxony, Germany

Discover in-depth weather details for every month in Altenau. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Altenau's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.