Annual Weather Averages in Portoroz
Portoroz is 19 miles from Opatija, so the actual climate in Opatija can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Opatija
High Temp: 85 °F
Low Temp: 34 °F
Mean Temp: 58 °F
Precipitation: 3.14"
Humidity: 72%
Dew Point: 47 °F
Wind: 11 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Opatija
High Temp: 49 °F
Low Temp: 34 °F
Mean Temp: 41 °F
Precipitation: 2.13"
Humidity: 77%
Dew Point: 34 °F
Wind: 10 mph
Pressure: 30.10 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Opatija
High Temp: 51 °F
Low Temp: 35 °F
Mean Temp: 43 °F
Precipitation: 2.48"
Humidity: 72%
Dew Point: 33 °F
Wind: 11 mph
Pressure: 30.07 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Opatija
High Temp: 57 °F
Low Temp: 39 °F
Mean Temp: 48 °F
Precipitation: 2.23"
Humidity: 68%
Dew Point: 37 °F
Wind: 12 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Opatija
High Temp: 65 °F
Low Temp: 46 °F
Mean Temp: 55 °F
Precipitation: 2.57"
Humidity: 68%
Dew Point: 44 °F
Wind: 12 mph
Pressure: 29.94 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Opatija
High Temp: 73 °F
Low Temp: 53 °F
Mean Temp: 63 °F
Precipitation: 2.92"
Humidity: 68%
Dew Point: 52 °F
Wind: 12 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Opatija
High Temp: 81 °F
Low Temp: 60 °F
Mean Temp: 70 °F
Precipitation: 2.94"
Humidity: 67%
Dew Point: 59 °F
Wind: 12 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Opatija
High Temp: 85 °F
Low Temp: 63 °F
Mean Temp: 74 °F
Precipitation: 2.32"
Humidity: 64%
Dew Point: 61 °F
Wind: 12 mph
Pressure: 29.94 "Hg
Visibility: 11 mi
August Climate & Weather Averages in Opatija
High Temp: 85 °F
Low Temp: 63 °F
Mean Temp: 74 °F
Precipitation: 2.88"
Humidity: 66%
Dew Point: 62 °F
Wind: 12 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Opatija
High Temp: 76 °F
Low Temp: 57 °F
Mean Temp: 66 °F
Precipitation: 4.93"
Humidity: 72%
Dew Point: 56 °F
Wind: 12 mph
Pressure: 30.00 "Hg
Visibility: 11 mi
October Climate & Weather Averages in Opatija
High Temp: 67 °F
Low Temp: 50 °F
Mean Temp: 59 °F
Precipitation: 4.13"
Humidity: 78%
Dew Point: 51 °F
Wind: 11 mph
Pressure: 30.05 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Opatija
High Temp: 58 °F
Low Temp: 44 °F
Mean Temp: 51 °F
Precipitation: 4.74"
Humidity: 80%
Dew Point: 44 °F
Wind: 11 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Opatija
High Temp: 51 °F
Low Temp: 37 °F
Mean Temp: 44 °F
Precipitation: 3.48"
Humidity: 79%
Dew Point: 37 °F
Wind: 10 mph
Pressure: 30.08 "Hg
Visibility: 9 mi