GR Peloponnese · Autumn

Peloponnese weather
in September

September is one of the best times to visit Peloponnese.

Open-Meteo · 10 years · 12 months compared · 37.51°N 22.37°E
27°CMax temperature
16%Rainy days
11.5hSunshine / day

Peloponnese weather in September

✅ Good
🌡️ Temperature min / max
15°C – 27°C
🌧 Rainy days
16% of days
☀️ Sunshine
11.5h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.8/10
📅 📅 Best month
June (9.2/10)

Should you visit Peloponnese in September?

✅ Good

✅ Yes if: you want good weather with lower prices than peak season.

❌ No if: you need guaranteed perfect weather — some mixed days are possible.

🌧 Rain : ██░░░░░░░░ 16%
🌡 Temperature : ███████░░░ 27°C
☀️ Sunshine : ████████░░ 11.5h/d

Our take: September is a good time to visit Peloponnese. June remains slightly better (+0.4 pts).

Peloponnese in September by trip type

What to expect in September

🎯 Ideal beach temperature (26°C) — crowds still moderate Autumn in Peloponnese is often underrated: 27°C, golden light and declining crowds. An interesting window. Rain risk remains low (16% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (9.2/10) remains theoretically better.

All months for Peloponnese

Month-by-month comparison

MonthMin °CMax °CRain %Precip mmSun h/dScore
🌦️ January2°C10°C35%2.78.7h4.8/10
🌫️ February3°C11°C31%2.09.8h5.7/10
⛅ March4°C14°C36%1.910.8h6.7/10
🌤️ April7°C18°C25%1.412.2h7.4/10
🌤️ May11°C22°C29%1.613.0h8.1/10
☀️ June16°C28°C24%1.713.8h9.2/10
☀️ July19°C31°C12%0.613.6h8.7/10
☀️ August19°C30°C14%0.513.0h8.8/10
☀️ September15°C27°C16%1.611.5h8.8/10
🌤️ October11°C21°C20%1.410.4h7.8/10
⛅ November8°C15°C32%2.49.1h6.9/10
🌫️ December5°C11°C34%2.58.5h5.0/10
Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years
📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Peloponnese averages 27°C, 16% rainy days and 11.5h of sunshine per day. Overall weather score: 8.8/10. See methodology →

September vs June (best month)

The best month is June (score 9.2/10). Difference:

FAQ — Peloponnese in September

Is September a good time to visit Peloponnese?
September is an excellent time to visit Peloponnese (score 8.8/10). With 27°C, 11.5h of sunshine and 16% rain, conditions are very favourable.
What to do in Peloponnese in September?
With 27°C and 11.5h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.

Find a place to stay in Peloponnese

Find places to stay in Peloponnese in September Search on Hotels.com

Activities and tours in Peloponnese

Guided tours, skip-the-line tickets and local experiences. Browse activities on GetYourGuide

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Real-time data with ECMWF seasonal corrections · updated daily

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