Kostrena Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kostrena.
Climate overview of Kostrena
Temperatures in Kostrena, Primorje-Gorski Kotar County, Croatia, vary greatly throughout the year. August is the hottest month at 27°C (81°F), while January is the coldest at 6°C (43°F).
The city has a wet climate, receiving around 1731 mm (68 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from September to November, with warm summers and cold winters. November is the wettest month. July is the sunniest month, averaging 9.9 hours of sunshine per day.
Kostrena Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kostrena - and find the best time to visit.
Monthly Temperature in Kostrena
The climate in Kostrena is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 27°C (81°F) in August to a chilly 6°C (43°F) in January.
Nighttime temperatures range from 17°C (63°F) in August to 0°C (32°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kostrena
Kostrena has a notably wet climate with abundant precipitation, recording 1731 mm (68 in) of rain/snowfall per year. The seasons in Kostrena bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 222 mm (8.7 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 87 mm (3.4 in) over 12 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Kostrena Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Kostrena
In Kostrena, summer days are longer and more sunny, with daily sunshine hours peaking at 9.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Kostrena
The mean water temperature over the year ranges from 11°C (52°F) in January to 25°C (77°F) in August.
Water temperature over the year
Humidity in Kostrena by Month
The relative humidity is high throughout the year in Kostrena.
The city experiences its highest humidity in November, reaching 67%. In July, the humidity drops to its lowest level at 56%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Kostrena
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: July and August
- Most sunshine: July
- Best for swimming: June, July, August and September.
- Seasonal pattern: A distinct rainy season from September to November, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around 0°C (32°F).
Frequently asked questions about the climate in Kostrena
What is the best time to visit Kostrena?
July typically offers the most optimal weather in Kostrena. In contrast, January, February, March, October, November and December tend to have less optimal conditions. Kostrena has a distinct rainy season from September to November, with warm summers and cold winters.
What temperatures can I expect in Kostrena?
Daytime highs range from 6°C (43°F) in January to 27°C (81°F) in August. Nighttime lows range from 0°C (32°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Kostrena get?
Annual rainfall is around 1731 mm (68 in). November is the wettest month with 222 mm (8.7 in), while July is the driest with 87 mm (3.4 in).
How sunny is Kostrena?
Kostrena receives around 2,222 hours of sunshine per year. July is the sunniest month with 298 hours, while December is the cloudiest with just 100 hours. Overall, Kostrena enjoys abundant sunshine.
Kostrena 3-Day Forecast
Kostrena 3-Day Forecast
Kostrena on the map
Kostrena is highlighted - select any city to see its climate.
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