Climate guide for Heraklion, Greece

Heraklion in September

Weather, crowds & best time to visit

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September · Greece

Best time to visit Heraklion in September Weather, crowds & prices

Weather in Heraklion in September

Average temperature 25°C, 24 mm of rain, about 25 days with 6+ hours of sunshine and 67% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

September score

8.5/10

Ranked #5 of 12 months

Full year for Heraklion
Avg temp
25°C
Rainfall
24 mm
Humidity
67%
Days with 6h+ sun
25
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

September in Heraklion scores 8.5/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 25°C, 24 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.

Heraklion pairs the Minoan palace of Knossos with a Venetian harbour and Crete's best museum.

September in Heraklion — one of the year's strongest windows (5th)

At 25°C (77°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.

With around 24 mm of rain, any showers tend to pass through rather than settle in; about 25 days with 6+ hours of sunshine and 12.2 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Heraklion at 8.5/10 (5th of 12), just behind May at 9.8/10.

Pack light clothing, a hat and real sun protection.

Expect mid-season pricing, and crowds are moderate.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Heraklion in September?
In September, Heraklion averages 25°C, 24 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 8.5/10.
Is September a good time to visit Heraklion?
September earns a 8.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Heraklion in September?
Expect about 24 mm of rain in September. Average humidity is 67% and there are about 25 days with 6+ hours of sunshine.

Curated in Heraklion

Tickets & experiences

Things to do in Heraklion

Heraklion, Greece. Live activities and tours from GetYourGuide, matched to this destination.