Rios Settlers in United States in the 19th Century. Ramon Rios, who landed in Puerto Rico in 1803 CITATION [CLOSE]
Vienna Weather in January 2018. Vienna in January. Vienna weather in January is extremely cold with temperatures of (-2Â°) and 4Â° degrees, as result gloves and warm clothes are recommended. Since there are on average 16 rainy days in Vienna in January and chances for rain are high, it is recommended to take an umbrella with you.
Key weather averages for Vienna in September. 1  21. 21Â°C max day temperature. 2  6. 6 hours of sunshine per day. 3  10. 10 days with some rainfall. 4  11. 11Â°C min night temperature. 5  13. 13 hours of daylight per day. 6  0. No heat & humidity. 7  42. 42 mm of monthly rainfall. 8  4. 4 (Moderate) UV index.