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Istria in May: weather, sea & travel advice

Istria in May is especially suited to city breaks and active holidays and hiking. Days are around 20 °C (mild), and the sea is about 17 °C. With about 8 rainy days it is moderate.

Küstenstadt Rovinj in IstrienIstria · MayPhoto: ---=XEON=--- · CC BY 3.0

Climate facts

Day
20 °C
Night
14 °C
Sea
17 °C
Rainy days
8 rainy days
Sun
8 h/day
Humidity
74 %

Suitability by travel type

BeachLimited56/100
City breakExcellent93/100
ActiveExcellent89/100
FamilyLimited58/100

In favour

  • No particular highlights.

To consider

  • Sea still cool (17 °C)

All months at a glance

Daytime temperature°C
8
J
8
F
12
M
16
A
20
M
24
J
27
J
28
A
23
S
18
O
14
N
9
D
Rainy daysdays
7
J
6
F
7
M
8
A
8
M
7
J
4
J
5
A
6
S
8
O
10
N
8
D

Similar destinations in May

Frequently asked questions

How warm is Istria in May?

Daytime highs average around 20 °C, with nights around 14 °C.

Can you swim in Istria in May?

The sea is about 17 °C (cold).

Does it rain a lot in Istria in May?

On the long-term average, expect about 8 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.