Which is the hottest month in Oia?

The hottest time of year in Oia is normally August. Expect maximum daytime temperatures to reach 27°C with moderate heat and humidity.

Which month has the most rain in Oia?

In terms of rainfall, January is usually the wettest month in Oia with 114mm on average. There are normally 11 days in January with some rain.

When is it sunniest in Oia?

The sunniest time of year in Oia is normally July with bright sunshine on average for 93% of daylight hours; that's 13 hours of sunshine per day.

When is the sea warmest in Oia?

The sea is usually at its warmest in Oia in August when the water temperature reaches 24°C.

Best time to visit Oia

Q: When is the best time to visit Oia?

The best time to visit Oia is May, June, July, August and September based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Find the best time to visit Oia and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Oia by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Santorini

TUI: up to 8% off holidays booked online

Sale

Book online with TUI & save up to 8% on holidays
FREE child places available for select holidays
Pay £0 deposits with direct debit & spread the cost

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

When is the best time to visit Oia?

The best time to visit Oia is May, June, July, August and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
1
Feb
1.5
Mar
3.5
Apr
5
May
5
Jun
5
Jul
5
Aug
5
Sep
4
Oct
2
Nov
0.5
Dec

Change criteria

Max Day Temperature (°C)

14
Jan
14
Feb
16
Mar
19
Apr
22
May
26
Jun
28
Jul
27
Aug
25
Sep
22
Oct
19
Nov
16
Dec

Hours of Sunshine (daily)

4
Jan
5
Feb
6
Mar
8
Apr
10
May
13
Jun
13
Jul
12
Aug
10
Sep
7
Oct
5
Nov
4
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Santorini (Oia) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)