How warm is it in Mykonos Town in July?

Daytime highs averaged 25.3 °C, night-time lows 23.9 °C. The highest value of the past 10 years was 30.2 °C (22 Jul 2026), the lowest 21.4 °C (15 Jul 2020).

How often does it rain in Mykonos Town in July?

On average there were 1.5 rain days (at least 1 mm) with 5.2 mm of precipitation in total. In 4 of 10 years there was no rain day at all.

How warm is the sea in Mykonos Town in July?

The sea temperature averaged 24.2 °C (open-sea point approx. 3 km from the town).

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Mykonos Town weather in July: temperature & rain

Photo: Pitichinaccio · CC BY 3.0

🇬🇷 Weather in Mykonos Town in July

This is what the weather in Mykonos Town (Mykonos, Greece) was like in July over the years 2017–2026.

Key facts at a glance

Prevailing weather: Sunny

Avg. daytime high

25.3 °C

23.9 °C – 26.4 °C

Avg. night-time low

23.9 °C

22.6 °C – 25.2 °C

Avg. rain days in period

1.5

5 % of days · ≥ 1.0 mm

Avg. precipitation in period

5.2 mm

0.2 mm – 13.7 mm

Avg. cloud cover

8 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

24.2 °C

Sea measuring point approx. 3 km from the location

Extremes: Highest temperature 30.2 °C (22 Jul 2026) · Lowest temperature 21.4 °C (15 Jul 2020) · Avg. daily peak wind 32 km/h

Weather mix of all days

287Sunny
7Partly cloudy
14Light rain
1Rain

Summary

On average 25.3 °C during the day and 23.9 °C at night.
On average 1.5 rain days (Rain day = at least 1.0 mm of precipitation) with 5.2 mm of precipitation in total.
In 4 of 10 years there was not a single rain day.
The sea averaged 24.2 °C.
Prevailing weather: Sunny.
Warmest year: 2018 (avg. 26.4 °C), coolest: 2022 (avg. 23.9 °C).
Wettest year: 2018 (13.7 mm), driest: 2025 (0.2 mm).
Extremes: 30.2 °C on 22 Jul 2026 and 21.4 °C on 15 Jul 2020.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max25.2°Avg. min23.8°
Rain days
2 Rain days
Precipitation
5.4 mm
Avg. cloud cover
–
Sea temperature
24.3 °C
Max 30.2 °C · Min 21.9 °C
2025
Avg. max25.9°Avg. min24.0°
Rain days
0 Rain days
Precipitation
0.2 mm
Avg. cloud cover
3 % cloudy
Sea temperature
24.1 °C
Max 29.8 °C · Min 22.2 °C
2024
Avg. max26.0°Avg. min24.4°
Rain days
1 Rain days
Precipitation
2.2 mm
Avg. cloud cover
10 % cloudy
Sea temperature
24.2 °C
Max 28.1 °C · Min 22.9 °C
2023
Avg. max26.1°Avg. min24.7°
Rain days
0 Rain days
Precipitation
0.7 mm
Avg. cloud cover
7 % cloudy
Sea temperature
25.1 °C
Max 29.6 °C · Min 22.8 °C
2022
Avg. max23.9°Avg. min22.6°
Rain days
2 Rain days
Precipitation
11.4 mm
Avg. cloud cover
4 % cloudy
Sea temperature
23.0 °C
Max 24.8 °C · Min 21.5 °C
2021
Avg. max25.9°Avg. min24.5°
Rain days
0 Rain days
Precipitation
1.0 mm
Avg. cloud cover
10 % cloudy
Sea temperature
24.8 °C
Max 28.3 °C · Min 23.4 °C
2020
Avg. max24.2°Avg. min23.0°
Rain days
0 Rain days
Precipitation
1.1 mm
Avg. cloud cover
5 % cloudy
Sea temperature
23.5 °C
Max 26.9 °C · Min 21.4 °C
2019
Avg. max24.8°Avg. min23.3°
Rain days
3 Rain days
Precipitation
9.1 mm
Avg. cloud cover
16 % cloudy
Sea temperature
24.2 °C
Max 28.5 °C · Min 22.0 °C
2018
Avg. max26.4°Avg. min25.2°
Rain days
3 Rain days
Precipitation
13.7 mm
Avg. cloud cover
10 % cloudy
Sea temperature
25.5 °C
Max 29.3 °C · Min 24.0 °C
2017
Avg. max25.0°Avg. min23.4°
Rain days
4 Rain days
Precipitation
7.5 mm
Avg. cloud cover
8 % cloudy
Sea temperature
23.7 °C
Max 28.0 °C · Min 22.2 °C

Frequently asked questions

How warm is it in Mykonos Town in July?: Daytime highs averaged 25.3 °C, night-time lows 23.9 °C. The highest value of the past 10 years was 30.2 °C (22 Jul 2026), the lowest 21.4 °C (15 Jul 2020).
How often does it rain in Mykonos Town in July?: On average there were 1.5 rain days (at least 1 mm) with 5.2 mm of precipitation in total. In 4 of 10 years there was no rain day at all.
How warm is the sea in Mykonos Town in July?: The sea temperature averaged 24.2 °C (open-sea point approx. 3 km from the town).

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis); Sea measuring point approx. 3 km from the location (37.450, 25.300)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)