Peloponnese · September
Best travel monthTravel seasonGreece · Europe
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 16° (61°)9– (48–)19 (66) | 16° (61°)10– (50–)20 (68) | 18° (64°)13– (55–)23 (73) | 22° (72°)16– (61–)27 (81) | 26° (79°)20– (68–)32 (90) | 30° (86°)24– (75–)37 (99) | 33° (91°)28– (82–)39 (102) | 33° (91°)29– (84–)38 (100) | 30° (86°)25– (77–)35 (95) | 25° (77°)19– (66–)30 (86) | 21° (70°)15– (59–)25 (77) | 17° (63°)11– (52–)22 (72) |
Ø night, range from coldest to warmest nightØ nightrange | 6° (43°)-1– (30–)11 (52) | 6° (43°)-1– (30–)11 (52) | 7° (45°)2– (36–)12 (54) | 10° (50°)5– (41–)14 (57) | 13° (55°)9– (48–)17 (63) | 18° (64°)13– (55–)21 (70) | 20° (68°)16– (61–)23 (73) | 20° (68°)16– (61–)24 (75) | 18° (64°)13– (55–)21 (70) | 14° (57°)9– (48–)19 (66) | 10° (50°)4– (39–)15 (59) | 7° (45°)1– (34–)13 (55) |
☀️Sunshine | 5h UV 4 | 6h UV 5 | 7h UV 6 | 8h UV 7 | 8h UV 7 | 9h UV 8 | 10h UV 8 | 9h UV 7 | 8h UV 7 | 7h UV 6 | 5h UV 4 | 5h UV 4 |
🌊Water Temp | 17° (63°) | 16° (61°) | 16° (61°) | 17° (63°) | 20° (68°) | 22° (72°) | 25° (77°) | 27° (81°) | 26° (79°) | 24° (75°) | 22° (72°) | 19° (66°) |
🌧Rain Days | 9d102mm (4.0") | 6d59mm (2.3") | 5d50mm (2.0") | 2d21mm (0.8") | 3d22mm (0.9") | 2d36mm (1.4") | 1d22mm (0.9") | 2d27mm (1.1") | 4d71mm (2.8") | 4d55mm (2.2") | 8d110mm (4.3") | 8d104mm (4.1") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Travel season — mid-range prices, good availability.
September is among the best months in Peloponnese: only 4 rain days, 30°C (86°F) highs, and good sunshine make for ideal holiday conditions.
Daytime highs average 30°C (86°F), cooling to 18°C (64°F) at night (daily average: 24°C (75°F)). Peaks reach around 35°C (95°F), the coldest nights around 13°C (55°F). The sun shines an average of 8 hours per day; there are 4 rain days with 71 mm (2.8 in) total. The water is a warm 26°C (79°F) — perfect for snorkelling and swimming.
Pack light summer clothing, sunscreen, and swimwear — beach and water conditions in September are ideal.
September and October: the sea is warmer than in June at 24 to 26°C (75 to 79°F), the air pleasant, the olive harvest beginning. From November it turns quiet and rainier — time for monasteries and mountain roads.
Packing list for Peloponnese in September
- Light summer clothes
- Thin cardigan for cool evenings
- Swimwear and beach towel
- SPF 50 sunscreen
- Sunglasses
- Sun hat
- Small umbrella (occasional showers possible)
- Travel first-aid kit
Frequently Asked Questions
- Is September a good time to visit Peloponnese?
- Yes — September is one of the best months to visit Peloponnese (Climate Score: 77/100). Pleasant temperatures (30°C (86°F)), good sunshine (8 h/day), and few rain days (4) make it one of the most recommended months.
- How warm is it in Peloponnese in September?
- In September, Peloponnese sees daily highs of 30°C (86°F). Nights cool to 18°C (64°F), with a daily average of 24°C (75°F). Peaks reach around 35°C (95°F), the coldest nights around 13°C (55°F).
- How much rain falls in Peloponnese in September?
- In September, Peloponnese receives an average of 71 mm (2.8 in) of rain over 4 rain days. The rain falls on few days, but heavily.
- How many sunshine hours does Peloponnese get in September?
- Peloponnese averages 8 sunshine hours per day in September — close to the annual average.
- How warm is the water in Peloponnese in September?
- Water temperature in Peloponnese in September averages 26°C (79°F) — ideal for swimming and snorkelling.
