Hersonissos Weather in September

During September, Hersonissos experiences high daytime temperatures of 28°C (82°F) and cooler nights around 21°C (70°F). Some rainfall is typical during this period.

Rainfall in Hersonissos in September

Typically around a single day of rainfall are expected, averaging 17 mm (0.7 in) for the month. Any rain that does arrive tends to come in a single sharp spell rather than prolonged drizzle.

Temperature in Hersonissos in September

September tends to be one of the perfect months in Hersonissos, with 28°C (82°F) in the afternoon and 21°C (70°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Hersonissos in September

Expect a lot of sunshine this month, with about 276 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Hersonissos in September

Average wind conditions reach 2 m/s (4 knots) in September. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.

Average water temperature in September

The water temperature is 25°C (77°F), which most people find very comfortable. A good month for swimming and water sports.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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• January
• February
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• May
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• October
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• December

For a detailed overview over the year and the best time to visit Greece, check out our Hersonissos's climate page.

Hersonissos Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 28°C (82°F)  

Water Temperature 25°C (77°F) *  

Chance of Rain 4%  

Precipitation 17 mm (0.7 in)  

Rainy days a single day  

Humidity 61% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 276 hours *  

Percentage Sunshine *  

* Data from: Heraklion (Kreta), Greece (18 KM, 11 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Hersonissos typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 22°C (72°F).

Average temperatures in September

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Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

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

‹ January February March April May June July August September October November December ›

Historical weather for Hersonissos in September

Browse day-by-day weather records for Hersonissos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Hersonissos historical weather extremes in September

Based on 27 years of weather observations in Hersonissos between 1998 and 2025, these are the recorded extremes.

• The warmest day in September was on September 9, 2003, with a maximum of 35°C (95°F).
• On September 17, 1998, Hersonissos saw its coldest September day with temperatures maxing out at 20°C (68°F).
• Nighttime temperatures dropped to 14°C (57°F) on September 22, 2025, marking the coldest September night on record.

What to Wear in Hersonissos in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. Expect water temperatures of around 25°C (77°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Hersonissos in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Greece, check out our Hersonissos's climate page.

More climate data for Hersonissos

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Hersonissos climate overview or explore weather in Greece.