Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 12.7 °C | 17.2 °C | 14 days | Possible, with trade-offs |
| February | 14.2 °C | 16.4 °C | 10 days | Possible, with trade-offs |
| March | 15.9 °C | 16.4 °C | 11 days | Possible, with trade-offs |
| April | 20.3 °C | 17.1 °C | 6 days | Pleasant — a good time to go |
| May | 25.2 °C | 19.1 °C | 4 days | Ideal — one of the best times of year |
| June | 30.4 °C | 22 °C | 3 days | Ideal — one of the best times of year |
| July | 33.7 °C | 23.3 °C | 1 day | Pleasant — a good time to go |
| August | 33.5 °C | 24.1 °C | 1 day | Ideal — one of the best times of year |
| September | 29.2 °C | 23.3 °C | 3 days | Ideal — one of the best times of year |
| October | 23.6 °C | 21.3 °C | 4 days | Pleasant — a good time to go |
| November | 18.8 °C | 19.3 °C | 10 days | Possible, with trade-offs |
| December | 14.6 °C | 18.2 °C | 12 days | Possible, with trade-offs |
Before you go
Three things to check once you have picked your dates.
Entry
Greece is in the European Union. Entry rules depend on your nationality — check before booking.
Safety
No specific restrictions
Usual precautions apply.
Official advice updated 11 August 2026
Health
Recommended vaccinations, water quality, mosquitoes: advice depends on the country and the season. Some vaccines need time before departure.
Beau Fixe is not a safety or health authority. These notes summarise public advisories and link to their source; only the competent authorities are authoritative. Alert levels: Foreign, Commonwealth & Development Office (gov.uk), Open Government Licence v3.0.
FAQ
Can you swim in Chios in April?
The sea averages 17.1°C in April — too cold for most swimmers.
How hot is Chios in April?
Expect 20.3°C in the afternoon and 12.7°C at night, averaged over the last 10 years.
Does it rain a lot in Chios in April?
Around 6 days with rain (≥ 1 mm) in the month — 20% of days.