Island in Ionian Islands, Greece
Kefalonia weather by month and the best time to visit
When to go to Kefalonia
May–June and September–October are warm and calmer for driving. July–August is hot and crowded; many tavernas close Nov–Mar.
Kefalonia weather by month
Average daily high, rainfall and conditions.
- Jan14°116 mm
- Feb14°88 mm
- Mar16°70 mm
- Apr18°40 mm
- May21°24 mm
- Jun26°17 mm
- Jul28°11 mm
- Aug29°15 mm
- Sep26°70 mm
- Oct23°100 mm
- Nov19°125 mm
- Dec16°145 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 14°C57°F | 12°C53°F | 116 mm | 75% | Cool |
| February | 14°C57°F | 12°C53°F | 88 mm | 76% | Cool |
| March | 16°C60°F | 13°C55°F | 70 mm | 77% | Cool |
| April | 18°C64°F | 15°C58°F | 40 mm | 77% | Cool |
| May | 21°C71°F | 18°C65°F | 24 mm | 76% | Pleasant |
| June | 26°C78°F | 22°C72°F | 17 mm | 73% | Pleasant |
| July | 28°C83°F | 25°C76°F | 11 mm | 70% | Pleasant |
| August | 29°C85°F | 26°C78°F | 15 mm | 68% | Pleasant |
| September | 26°C79°F | 23°C74°F | 70 mm | 69% | Pleasant |
| October | 23°C73°F | 20°C68°F | 100 mm | 73% | Pleasant |
| November | 19°C67°F | 17°C63°F | 125 mm | 74% | Pleasant |
| December | 16°C60°F | 14°C56°F | 145 mm | 74% | Cool |
Best months across Greece
| Place | Best months | Warmest month |
|---|---|---|
| Athens | Apr–Jun, Sep–Oct | Jul (33°C) |
| Santorini | May–Jun, Sep–Oct | Aug (26°C) |
| Mykonos | May–Jun, Sep | Aug (25°C) |
| Crete | May–Jun, Sep–Oct | Aug (28°C) |
| Rhodes | May–Jun, Sep–Oct | Aug (32°C) |
| Corfu | May–Jun, Sep–Oct | Aug (30°C) |
| Thessaloniki | Apr–Jun, Sep–Oct | Jul (34°C) |
| Naxos | May–Jun, Sep–Oct | Aug (27°C) |
| Paros | May–Jun, Sep–Oct | Aug (27°C) |
| Zakynthos | May–Jun, Sep–Oct | Aug (29°C) |
| Chania | May–Jun, Sep–Oct | Jul (30°C) |
| Milos | May–Jun, Sep–Oct | Aug (26°C) |
| Kos | May–Jun, Sep–Oct | Aug (32°C) |
| Kefalonia | May–Jun, Sep–Oct | Aug (29°C) |
| Meteora | Apr–May, Sep–Oct | Jul (36°C) |
| Halkidiki | Jun–Sep | Jul (29°C) |
| Ios | Jun–Sep | Aug (26°C) |
| Lefkada | May–Jun, Sep–Oct | Aug (31°C) |
| Nafplio | Apr–Jun, Sep–Oct | Jul (36°C) |
| Skiathos | Jun–Jul, Sep | Aug (28°C) |
| Hydra | May–Jun, Sep–Oct | Aug (28°C) |
| Peloponnese | Apr–Jun, Sep–Oct | Aug (33°C) |
| Thassos | Jun–Jul, Sep | Aug (33°C) |
Quick answers
What is the best month to visit Kefalonia?
May–Jun, Sep–Oct. May–June and September–October are warm and calmer for driving. July–August is hot and crowded; many tavernas close Nov–Mar.
When is the rainy season in Kefalonia?
Rain peaks in December with about 145 mm. No month averages 150 mm or more.
What is the hottest month in Kefalonia?
August, with average highs of 29°C (85°F).
How cold does Kefalonia get?
The coolest nights are in February, averaging 12°C (53°F).
More about Kefalonia
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.