Measurements:
°C
°F
Umag
48°F
SW 4 mph
Feels like: 46°F
Precip: 0%
World Resorts Croatia Umag Weather September Weather in Umag

Umag Weather: September

Average Day Temperature: 76.8°F
Average Night Temperature: 67.2°F
Sea Water Temperature: 77.3°F
Number of Sunny Days: 19 days
Sunshine Hours: 11.8 - 13.3 hours
Number of Rainy Days: 6 days
Precipitation Totals: 3.7 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 82°F. The lowest night temperature was 59°F. The average values for day and night temperatures during September were 75.9°F и 67.9°F respectivly.

Umag Water Sea Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Umag was 78.6°F. The maximum and minimum values were 75.6°F and 80.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Umag is 3.7 in. It makes september the most rainy month of the year.

Wind Speed in September, mph

The average wind speed in September is 6.8 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Umag in September is 9.1 hours.

Best Time to Visit Umag
The most sunny months:
August 24 days
July 23 days
June 22 days
The most warm months:
August 85.8 °F
July 84.9 °F
June 79.8 °F
Warmest sea temperature:
August 82.3 °F
July 81.8 °F
September 77.3 °F
The most cold months:
January 47.1 °F
February 48.8 °F
December 50.1 °F
The most rainy months:
November 6 days
September 6 days
May 5 days
The most windy months:
March 7 mph
February 7 mph
November 7 mph

Umag on the Weather Map

Croatia Resorts:
NAME
Baska Voda +56
Brela +56
Dubrovnik +56
Istria +48
Klek +54
Makarska +50
Omis +54
Porec +48
Pula +48
Rijeka +38
Rovinj +48
Split +54
Trogir +56
Zadar +52
Zagreb +40
24 Hours Weather Forecast
Umag
Local time: 09:31
05 dec, friday
1200 52°F
S
5 mph
1500 52°F
S
7 mph
1800 48°F
SW
8 mph
2100 46°F
SW
8 mph
06 dec, saturday
0000 46°F
SW
4 mph
0300 46°F
SW
5 mph
0600 46°F
SW
4 mph
0900 48°F
SW
4 mph