How warm is it in Heraklion in August?

Daytime highs averaged 28.4 °C, night-time lows 24.9 °C. The highest value of the past 10 years was 34.2 °C (6 Aug 2021), the lowest 22.1 °C (31 Aug 2017).

How often does it rain in Heraklion in August?

On average there were 1.6 rain days (at least 1 mm) with 6.4 mm of precipitation in total. In 4 of 10 years there was no rain day at all.

Photo: Jebulon · CC0

🇬🇷 Weather in Heraklion in August

This is what the weather in Heraklion (Crete, Greece) was like in August in 2017–2026.

Key facts at a glance

Prevailing weather: Sunny

Avg. daytime high

28.4 °C

27.1 °C – 29.5 °C

Avg. night-time low

24.9 °C

24.2 °C – 25.6 °C

Avg. rain days in period

1.6

5 % of days · ≥ 1.0 mm

Avg. precipitation in period

6.4 mm

1.0 mm – 15.8 mm

Avg. sunshine per day

n/a

Sunshine duration is not available from this data source.

Avg. sea temperature

–

Sea temperature unavailable for today (daily limit).

Extremes: Highest temperature 34.2 °C (6 Aug 2021) · Lowest temperature 22.1 °C (31 Aug 2017) · Avg. daily peak wind 24 km/h

Weather mix of all days

257Sunny
6Partly cloudy
16Light rain

Summary

On average 28.4 °C during the day and 24.9 °C at night.
On average 1.6 rain days (Rain day = at least 1.0 mm of precipitation) with 6.4 mm of precipitation in total.
In 4 of 10 years there was not a single rain day.
Prevailing: Sunny.
Warmest year: 2024 (avg. 29.5 °C), coolest: 2017 (avg. 27.1 °C).
Wettest year: 2022 (15.8 mm), driest: 2019 (1.0 mm).
Extremes: 34.2 °C on 6 Aug 2021 and 22.1 °C on 31 Aug 2017.

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. max28.4°Avg. min24.7°
Rain days
0 Rain days
Precipitation
2.8 mm
Avg. sunshine per day
n/a
Sea temperature
–
Max 31.6 °C · Min 23.4 °C
2025
Avg. max28.4°Avg. min24.8°
Rain days
0 Rain days
Precipitation
4.8 mm
Avg. cloud cover
16 % cloudy
Sea temperature
–
Max 31.5 °C · Min 23.7 °C
2024
Avg. max29.5°Avg. min25.6°
Rain days
0 Rain days
Precipitation
4.7 mm
Avg. cloud cover
15 % cloudy
Sea temperature
–
Max 33.6 °C · Min 24.1 °C
2023
Avg. max29.1°Avg. min25.4°
Rain days
2 Rain days
Precipitation
6.4 mm
Avg. cloud cover
17 % cloudy
Sea temperature
–
Max 31.7 °C · Min 24.3 °C
2022
Avg. max28.2°Avg. min24.5°
Rain days
5 Rain days
Precipitation
15.8 mm
Avg. cloud cover
17 % cloudy
Sea temperature
–
Max 30.2 °C · Min 23.7 °C
2021
Avg. max29.4°Avg. min25.3°
Rain days
1 Rain days
Precipitation
3.2 mm
Avg. cloud cover
11 % cloudy
Sea temperature
–
Max 34.2 °C · Min 23.9 °C
2020
Avg. max28.3°Avg. min24.7°
Rain days
1 Rain days
Precipitation
4.7 mm
Avg. cloud cover
11 % cloudy
Sea temperature
–
Max 31.0 °C · Min 24.0 °C
2019
Avg. max27.7°Avg. min24.5°
Rain days
0 Rain days
Precipitation
1.0 mm
Avg. cloud cover
12 % cloudy
Sea temperature
–
Max 31.6 °C · Min 23.2 °C
2018
Avg. max28.0°Avg. min25.2°
Rain days
4 Rain days
Precipitation
10.5 mm
Avg. cloud cover
17 % cloudy
Sea temperature
–
Max 29.4 °C · Min 24.0 °C
2017
Avg. max27.1°Avg. min24.2°
Rain days
3 Rain days
Precipitation
10.2 mm
Avg. cloud cover
17 % cloudy
Sea temperature
–
Max 29.3 °C · Min 22.1 °C

Frequently asked questions

How warm is it in Heraklion in August?: Daytime highs averaged 28.4 °C, night-time lows 24.9 °C. The highest value of the past 10 years was 34.2 °C (6 Aug 2021), the lowest 22.1 °C (31 Aug 2017).
How often does it rain in Heraklion in August?: On average there were 1.6 rain days (at least 1 mm) with 6.4 mm of precipitation in total. In 4 of 10 years there was no rain day at all.

Check your exact travel dates

Choose your travel period – we show the weather for exactly those days.

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. 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)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)