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Istria weather in September

Thinking about venturing to Istria this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Istria in September?

Istria is a region in Croatia. September in Istria generally has temperatures that range from pleasant to warm, with precipitation levels ranging from high to heavy.

The average highest temperatures fluctuate between pleasant in Jurdani at 21°C to warm in Radovani at 24°C. Nighttime temperatures generally drop to 16°C in Radovani and 13°C in Jurdani.

In September, precipitation varies across different areas. From high rainfall in Rovinj with an average of 122 mm to heavy rainfall in Mošćenička Draga with 232 mm. The days are mostly sunny, with an average total of around 210 hours of sunshine in Pula. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For a closer look at September's conditions in Istria, see the map below. For a more detailed look at Istria's yearly weather, check out our Istria climate page.

Where to go in Istria in September

Find the average weather conditions in September for the most popular destinations in Istria on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Istria

What is the weather like in September for the 5 most popular destinations in Istria?

Average weather in Pula

In September Pula generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.

Pula
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
23°C 
270 hours 
61 mm 
11 days 
23°C 
19°C 
210 hours 
134 mm 
11 days 
October   >> October
>>  
19°C 
15°C 
150 hours 
146 mm 
12 days 
Climate in Pula

Average weather in Rovinj

In September Rovinj generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.

Rovinj
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
23°C 
302 hours 
64 mm 
11 days 
24°C 
19°C 
233 hours 
122 mm 
11 days 
October   >> October
>>  
19°C 
15°C 
177 hours 
125 mm 
12 days 
Climate in Rovinj

Average weather in Poreč

In September Poreč generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.

Poreč
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
22°C 
302 hours 
69 mm 
11 days 
24°C 
19°C 
233 hours 
125 mm 
11 days 
October   >> October
>>  
19°C 
14°C 
177 hours 
129 mm 
11 days 
Climate in Poreč

Average weather in Medulin

In September Medulin generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.

Medulin
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
23°C 
270 hours 
61 mm 
11 days 
23°C 
19°C 
210 hours 
139 mm 
11 days 
October   >> October
>>  
19°C 
15°C 
150 hours 
153 mm 
12 days 
Climate in Medulin

Average weather in Umag

In September Umag generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.

Umag
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
23°C 
299 hours 
75 mm 
11 days 
24°C 
19°C 
223 hours 
144 mm 
11 days 
October   >> October
>>  
19°C 
15°C 
166 hours 
153 mm 
11 days 
Climate in Umag

Is your destination not in the list? Have a look at other destinations in Istria, in Croatia.

Is September the best time to visit Istria?

Given the typically pleasant weather conditions in Pula, September might be a good time to visit Istria. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Istria is in May, June, July and August with generally perfect weather in Pula. On the other hand, the months of January and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Istria. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Croatia? Get detailed historical weather averages for many cities in Croatia.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.