Oia weather
Our guide to the weather in Oia during September
We've looked at the most up-to-date weather data for Oia, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Oia weather in September.
How warm is it in Oia during September?
The temperature is extremely stable in September with average highs of 24℃ and lows just 1℃ lower at 24℃. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Oia during September?
On average, in September you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Oia during September?
Expect moderate breeze becoming stronger at times during September, with occasional gusts up to 20mph. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
How warm is the sea in Oia during September?
The water temperature around Oia reaches a pleasant 25℃ during September. While generally considered warm, some people might find it a little on the cool side on entering the water.
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