Grožnjan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grožnjan.
Climate overview of Grožnjan
Grožnjan, in Croatia's Istria region, experiences significant temperature changes throughout the year. Warm summers transition to cold winters, while the area receives high precipitation levels spread across the seasons. The town is known for its galleries, craft workshops, and it is a cultural retreat in the Istrian hills. Let's explore the climate details to provide you with a complete overview on when to visit.
Grožnjan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grožnjan — and find the best time to visit.
Monthly Temperature in Grožnjan
Visitors to Grožnjan can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 29°C (84°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 21°C (70°F) in August to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grožnjan
Grožnjan is known for its substantial rainfall, with annual precipitation reaching 1231 mm (48 in). The seasons in Grožnjan bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 160 mm (6.3 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 58 mm (2.3 in) over 11 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Grožnjan 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 Grožnjan
In Grožnjan, summer days are longer and more sunny, with daily sunshine hours peaking at 10.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Grožnjan by Month
The relative humidity is moderate throughout the year in Grožnjan.
The city experiences its highest humidity in January, reaching 67%. In July, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Grožnjan
The weather does bring rainfall during this period, between 58 mm (2.3 in) and 148 mm (5.8 in).
Plan accordingly for November, when conditions bring the heaviest precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Grožnjan
What is the best time to visit Grožnjan?
May, June, July and August typically offer the most optimal weather in Grožnjan. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Grožnjan?
Daytime highs range from 9°C (48°F) in January to 29°C (84°F) in August. Nighttime lows range from 3°C (37°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Grožnjan get?
Annual rainfall is around 1231 mm (48 in). November is the wettest month with 160 mm (6.3 in), while July is the driest with 58 mm (2.3 in).
How sunny is Grožnjan?
Grožnjan receives around 2,348 hours of sunshine per year. July is the sunniest month with 317 hours, while December is the cloudiest with just 95 hours. Overall, Grožnjan enjoys abundant sunshine.
Grožnjan 3-Day Forecast
Grožnjan 3-Day Forecast
Grožnjan on the map
Grožnjan is highlighted — select any city to see its climate.
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