Weather in Santorini Greece in October

Averages for Santorini in October

Weather lowdown

October is a great time of year to visit Santorini, Greece, when the weather is superb and the island is relatively quiet. During this month, the temperatures are pleasantly mild, as is the average sea temperature which retains the heat from summer. Although the chance of rainfall is slightly increased from September, it’s not so much that it should spoil your holiday in October. If you’re not bothered about the quieter atmosphere and want to take advantage of cheap prices, October is a great month to visit Santorini.

At this time of year, the average temperature for the island starts off at 22°C on October 1st and gradually drops down to 18°C by October 31st. Daily highs and daily lows change in the same way, falling from 25°C to 20°C and from 19°C to 16°C, respectively, as the month develops.

With average temperatures like this, you’ll need to bring a mixture of cool and warm clothing in order to stay comfortable whilst on holiday. Make sure you bring plenty of light and airy clothing, beachwear and swimming gear for during the daytime, as well as a thin jacket in case its especially cold on an evening. Whatever the weather forecast is, remember to bring enough suntan lotion and a pair of sunglasses so your holiday isn’t ruined by heatstroke or sunburn.

Although it only happens on rare occasions, temperatures have been known to fall below 13°C and rise above 27°C in Santorini in October. In recent times, the hottest October day ever recorded on the island saw temperatures rise up to 33°C. On the other hand, the coldest October day ever recorded on the island saw temperatures drop below 11°C.

Throughout the month, Santorini receives an average of 38mm of rainfall – that’s significantly more than in September. Despite the increase in rainfall, the island is only subject to around four rainy days in October, which means the chance of you experiencing a shower or two during your holiday is quite low.

As the month progresses, the probability of rainfall increases. Rainfall is most likely to make an appearance on October 31st when it falls on 24% of days. At the other end of the scale, rainfall is least likely to make an appearance on October 1st, when it only falls on 15% of days. If you’re unlucky enough to experience some precipitation during your holiday in October, it will most probably be light rain, thunderstorms or moderate rain.

Across the month, Santorini boasts an average of nine hours of sunshine each day – that’s two hours less every day than in September. In spite of the decrease in sunshine hours, you’ll still have more than enough time to work on your tan by the pool or at the beach during your holiday.

If a day at the beach sounds like just what the doctor ordered, you’ll be pleased to hear that the average sea water temperature for the beaches in Santorini is 23°C in October – that’s 1°C cooler than in September. This temperature is perfect for swimming, snorkelling, scuba diving and all sorts of water sports, which is why you’ll see so many people on the beaches at this time of year.

Throughout October, the length of the day in Santorini is steadily decreasing, with a difference of 1:06 hours between the start and the end of the month. October 1st is the longest day of the month, with 11:48 hours of daylight, whilst October 31st is the shortest day of the month with 10:42 hours of daylight.

Across the month, the relative humidity for Santorini fluctuates between 57% (mildly humid) and 85% (very humid) rarely falling below 45% (comfortable) or rising up to 95% (very humid). On average the driest day of the month is October 1st, when the average daily humidity falls below 63% three days out of every four. At the other end of the scale, the most humid day of the most is often October 3rd, when the average daily humidity rises above 81% three days out of every four.

In October, normal wind speeds range between 1 m/s (light air) and 8 m/s (fresh breeze) rarely going above 12 m/s (strong breeze). The highest average wind speed of 5 m/s (moderate breeze) normally happens around October 21st, when the average daily maximum wind speed is 8 m/s. On the other hand, the lowest average wind speed of 5 m/s usually occurs around October 2nd when the average daily maximum wind speed is 8 m/s.

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