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Monthly climate in Romanshorn, Thurgau, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Romanshorn 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 -16 °C (3 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 1419 mm (55.9 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually.Romanshorn enjoys an average of 3515 hours of sunshine throughout the year, and daylight varies from 8 hours 28 minutes to 15 hours 54 minutes per day.

Monthly average temperatures in Romanshorn, Thurgau, Switzerland §

The warmest months in Romanshorn 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, Romanshorn experiences 31 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Romanshorn, 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 13°C
(55°F)		 16°C
(62°F)		 19°C
(67°F)		 24°C
(76°F)		 30°C
(85°F)		 33°C
(91°F)		 32°C
(90°F)		 33°C
(91°F)		 26°C
(80°F)		 22°C
(72°F)		 20°C
(68°F)		 13°C
(55°F)
Mean maximum 9°C
(48°F)		 14°C
(57°F)		 17°C
(63°F)		 22°C
(72°F)		 26°C
(78°F)		 27°C
(82°F)		 30°C
(86°F)		 31°C
(88°F)		 25°C
(77°F)		 21°C
(70°F)		 17°C
(63°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)		 15°C
(58°F)		 8°C
(47°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
(67°F)		 15°C
(59°F)		 11°C
(51°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -2°C
(28°F)		 -1°C
(31°F)		 1°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)		 -1°C
(31°F)
Mean minimum -8°C
(17°F)		 -8°C
(18°F)		 -5°C
(23°F)		 -2°C
(29°F)		 3°C
(38°F)		 8°C
(47°F)		 11°C
(52°F)		 10°C
(51°F)		 6°C
(43°F)		 3°C
(38°F)		 -1°C
(30°F)		 -7°C
(19°F)
Minimum -16°C
(3°F)		 -13°C
(9°F)		 -14°C
(6°F)		 -4°C
(24°F)		 0°C
(32°F)		 6°C
(43°F)		 11°C
(51°F)		 9°C
(49°F)		 4°C
(39°F)		 1°C
(34°F)		 -2°C
(28°F)		 -9°C
(16°F)

Compare climate in Romanshorn with other places

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

Monthly average precipitation in Romanshorn, Thurgau, Switzerland §

Romanshorn usually has the most precipitation in June, July and August, with an average of 15 rainy days and 157 mm (6.2 inches) of precipitation per month.The driest months in Romanshorn are February, April and November. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Romanshorn, 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) 109 (4.3) 83 (3.3) 98 (3.8) 76 (3.0) 142 (5.6) 152 (6.0) 146 (5.7) 175 (6.9) 117 (4.6) 118 (4.7) 73 (2.9) 131 (5.2)
Average precipitation days (≥ 1 mm) 12 12 16 9 16 15 16 14 12 13 11 19

Monthly sunshine hours in Romanshorn, Thurgau, Switzerland §

The sunniest months in Romanshorn are June, July and August, when the sun shines an average of 12 hours 35 minutes a day.Least sunny months in Romanshorn: January, November and December receive an average of 5 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Romanshorn, 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 154 223 291 348 358 380 405 372 315 275 213 176
Mean daily daylight hours 8h 54m 10h 14m 11h 55m 13h 39m 15h 8m 15h 54m 15h 30m 14h 10m 12h 31m 10h 48m 9h 16m 8h 28m

Solar UV radiation in Romanshorn, Thurgau, Switzerland §

Romanshorn 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, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Romanshorn UV Index data.

Average daily maximum UV levels by month for Romanshorn, 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 3 1