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Monthly climate in Altnau, Thurgau, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Altnau features a oceanic climate (Cfb).Temperatures typically range between 0 °C (33 °F) and 19 °C (67 °F) through the year, but rarely can drop to -14 °C (7 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 1491 mm (58.7 inches) and receives 176 rainy days on the 1 mm (0.04 inches) threshold annually.Altnau enjoys an average of 3465 hours of sunshine throughout the year, and daylight varies from 8 hours 29 minutes to 15 hours 53 minutes per day.

Monthly average temperatures in Altnau, Thurgau, Switzerland §

The warmest months in Altnau are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (65 - 67 °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 - 37 °F) throughout the day. On average each year, Altnau experiences 30 days above 25 °C (77.0 °F) and 66 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Altnau, Thurgau, Switzerland.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 14°C
(57°F)		 18°C
(65°F)		 19°C
(66°F)		 24°C
(76°F)		 29°C
(85°F)		 32°C
(91°F)		 33°C
(91°F)		 33°C
(91°F)		 27°C
(80°F)		 23°C
(73°F)		 19°C
(67°F)		 12°C
(54°F)
Mean maximum 9°C
(48°F)		 14°C
(58°F)		 17°C
(63°F)		 22°C
(72°F)		 26°C
(79°F)		 27°C
(81°F)		 30°C
(86°F)		 31°C
(88°F)		 25°C
(77°F)		 21°C
(70°F)		 16°C
(62°F)		 11°C
(52°F)
Average high 3°C
(38°F)		 6°C
(43°F)		 10°C
(50°F)		 14°C
(58°F)		 17°C
(63°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 19°C
(67°F)		 14°C
(58°F)		 8°C
(46°F)		 4°C
(40°F)
Daily mean 0°C
(33°F)		 2°C
(37°F)		 5°C
(42°F)		 9°C
(49°F)		 13°C
(56°F)		 18°C
(65°F)		 19°C
(67°F)		 19°C
(66°F)		 15°C
(59°F)		 10°C
(51°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -2°C
(29°F)		 -1°C
(31°F)		 2°C
(35°F)		 5°C
(41°F)		 9°C
(49°F)		 14°C
(58°F)		 15°C
(60°F)		 15°C
(60°F)		 12°C
(53°F)		 8°C
(46°F)		 3°C
(38°F)		 -0°C
(32°F)
Mean minimum -7°C
(20°F)		 -8°C
(18°F)		 -4°C
(24°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(48°F)		 11°C
(52°F)		 10°C
(51°F)		 6°C
(43°F)		 3°C
(38°F)		 -1°C
(30°F)		 -6°C
(22°F)
Minimum -14°C
(7°F)		 -13°C
(9°F)		 -14°C
(8°F)		 -6°C
(22°F)		 -0°C
(32°F)		 7°C
(44°F)		 10°C
(51°F)		 9°C
(49°F)		 4°C
(40°F)		 2°C
(35°F)		 -2°C
(29°F)		 -7°C
(19°F)

Compare climate in Altnau with other places

Compare temperature, precipitation, sunshine, UV index in Altnau, Thurgau, Switzerland with other places around the world.

Monthly average precipitation in Altnau, Thurgau, Switzerland §

Altnau usually has the most precipitation in June, July and August, with an average of 17 rainy days and 174 mm (6.8 inches) of precipitation per month.The driest months in Altnau are February, April and November. On average, 78 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Altnau, Thurgau, Switzerland.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) 106 (4.2) 85 (3.3) 100 (3.9) 79 (3.1) 147 (5.8) 168 (6.6) 159 (6.3) 194 (7.7) 128 (5.0) 119 (4.7) 72 (2.8) 135 (5.3)
Average precipitation days (≥ 1 mm) 12 12 16 11 17 17 18 17 13 14 11 18

Monthly sunshine hours in Altnau, Thurgau, Switzerland §

The sunniest months in Altnau are June, July and August, when the sun shines an average of 12 hours 32 minutes a day.Least sunny months in Altnau: January, November and December receive an average of 5 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Altnau, Thurgau, Switzerland.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 149 217 287 348 356 377 403 372 314 269 199 168
Mean daily daylight hours 8h 55m 10h 15m 11h 56m 13h 39m 15h 7m 15h 53m 15h 29m 14h 10m 12h 30m 10h 48m 9h 17m 8h 29m

Solar UV radiation in Altnau, Thurgau, Switzerland §

Altnau experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure.January, November 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 Altnau UV Index data.

Average daily maximum UV levels by month for Altnau, Thurgau, Switzerland.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) 2 3 5 6 8 9 9 8 6 4 2 1