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Istria
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Istria Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Istria year round climate
- Spring (March–May): Average 46–62°F, mild climate with relatively high rainfall, especially in May. Common activities: Explore the Istrian countryside, enjoy local food and wine. Recommended clothing: Light jacket, comfortable trousers or skirt, comfortable shoes.
- Summer (June–August): Average 70–76°F, hot and dry with abundant sunshine. Common activities: Swimming, sunbathing, water sports, visiting historic towns. Recommended clothing: Light and breathable clothing, hat, sunglasses, sunscreen.
- Autumn (September–November): Average 64–46°F, pleasant climate, with the highest rainfall in September. Common activities: Stroll through vineyards, wine tasting, enjoy the autumnal countryside, visit museums and art galleries. Recommended clothing: Comfortable long-sleeved shirts, light jacket, comfortable shoes.
- Winter (December–February): Average 42–39°F, cold and humid climate with occasional rainfall. Common activities: Explore indoor attractions, enjoy local cuisine, indulge in comfortable indoor activities. Recommended clothing: Warm jacket, sweater, scarf, hat, gloves.
Istria climatological average
Annual average temperature: approx. 56.7°F / Annual rainfall: approx. 1204 mm / Summer humidity: 60%–70% / Rainiest month: September
Istria monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
39.6°F
75
February
42.4°F
52.2
March
46.8°F
73.2
April
51.8°F
71.8
May
62.4°F
128.7
June
70.7°F
84.9
July
76.1°F
56.2
August
75.6°F
108.9
September
64.8°F
179.8
October
59.7°F
134.4
November
46.9°F
119.5
December
43°F
119.9
Istria weather for the next seven days
5/15
Friday
Moderate rain
60.6°F/56.1°F
5/16
Saturday
Heavy rain
54.1°F/51.8°F
5/17
Sunday
Patchy rain nearby
61.8°F/51.9°F
5/18
Monday
Patchy rain nearby
63.8°F/53.4°F
5/19
Tuesday
Patchy rain nearby
66.2°F/54.6°F
5/20
Wednesday
Sunny
68.3°F/57.1°F
5/21
Thursday
Sunny
69.2°F/58.3°F
