Istria in September: weather, sea & travel advice
Istria in September is especially suited to city breaks, family holidays, active holidays and hiking and beach holidays. Days are around 23 °C (mild), and the sea is about 23 °C. With about 6 rainy days it is dry.
Istria · SeptemberPhoto: ---=XEON=--- · CC BY 3.0Climate facts
- Day
- 23 °C
- Night
- 17 °C
- Sea
- 23 °C
- Rainy days
- 6 rainy days
- Sun
- 6 h/day
- Humidity
- 70 %
Suitability by travel type
BeachExcellent84/100
City breakExcellent97/100
ActiveExcellent88/100
FamilyExcellent89/100
In favour
- No particular highlights.
To consider
- No significant drawbacks.
All months at a glance
8J
8F
12M
16A
20M
24J
27J
28A
23S
18O
14N
9D
7J
6F
7M
8A
8M
7J
4J
5A
6S
8O
10N
8D
Similar destinations in September
Frequently asked questions
How warm is Istria in September?
Daytime highs average around 23 °C, with nights around 17 °C.
Can you swim in Istria in September?
The sea is about 23 °C (swimmable).
Does it rain a lot in Istria in September?
On the long-term average, expect about 6 rainy days.
When is the best time to visit Istria?
The most favourable months are usually the ones highlighted on the overview page. Values are historical averages, not a forecast.