Late spring · Weather & things to do
Santorini in May
Santorini warms up: highs climb to 69°F (20°C), from 63°F in April, with lows of 64°F (18°C) and about 0.7 in (19 mm) of rain.
May opens the best stretch on our comfort score, at 93/100 (6th of 12).
- Avg high
- 69°F (20°C)
- Avg low
- 64°F (18°C)
- Rain
- 0.7 in (19 mm)
- Humidity
- 77%
- Cloud cover
- 34%
- Daylight
- ~13 h 56 min
- Comfort score
- 93/100 · Great
What May feels like
Expect mild afternoons around 69°F (20°C), good for long walks.
Nights cool to an average low of 64°F (18°C).
Rain is scarce: about 0.7 in (19 mm) for the whole month.
Sunny spells dominate: cloud cover averages 34%.
Plan around May
May is one of Santorini's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: May – October.
- Comfort holds steady from April (92 → 93/100).
- May sits inside the May – Oct window our Greek Island Hop route recommends.
What to pack for May
- A warm layer for eveningslows near 64°F
- Comfortable walking shoesmost picks involve some walking
What to do in Santorini in May
May is good outdoor weather here, so these picks lean toward the open air.
Red Beach
Red volcanic cliffs over a small beach near Akrotiri.
Why now May scores 93/100 for comfort, good conditions for being outside.
Perissa Beach
Long black-sand beach with sunbeds and tavernas.
Why now Highs near 69°F and 0.7 in of monthly rain make this an easy outdoor pick.
Fira to Oia hike
10 km walk along the caldera rim through Firostefani and Imerovigli.
Why now One to do outside while the weather is on your side.
Santo Wines
Cooperative winery with a terrace over the caldera, pouring Assyrtiko.
Ammoudi Fish Tavern
Waterside fish tavern at the foot of Oia's cliffs.
Nearby in May
- Naxos in May~49 mi · highs 70°F, 0.7 in rain · similar daytime temperatures, about as wet
- Mykonos in May~73 mi · highs 67°F, 0.8 in rain · similar daytime temperatures, about as wet
- Athens in May~146 mi · highs 77°F, 0.8 in rain · 5°C (9°F) warmer by day, about as wet
- Selçuk in May~150 mi · highs 82°F, 1.3 in rain · 7°C (13°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Santorini in May: quick answers
Is May a good time to visit Santorini?
Yes. On the climate data it's one of the best months, scoring 93/100. Expect highs of 69°F (20°C) and 0.7 in (19 mm) of rain. May is inside the May – Oct window our Greek Island Hop route recommends.
How hot is Santorini in May?
Average highs are 69°F (20°C) and average lows 64°F (18°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in Santorini in May?
Not much: about 0.7 in (19 mm) of rain falls across May on average, the 5th-driest month of the year. The annual total is about 19.2 in (488 mm).
What should I pack for Santorini in May?
Bring a warm layer for evenings (lows near 64°F) and comfortable walking shoes (most picks involve some walking).
More on Santorini
Routes in season in May
- Greek Island Hop May – Oct
Planning Santorini in May?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.