In January, Santorini sees its coldest temperatures in the year. The average high temperature measures in at 57°F (14°C) while the average low temperature is a cool 50°F (10°C).
February sees both high and low temperature averages hold steady at 57°F (14°C) and 50°F (10°C) respectively.
Santorini Weather in March: The temperatures increase in March with the high temperatures increasing to 61°F (16°C). The low temperature rises a few degrees to 52°F (11°C). Meanwhile, Santorini sees an average rainfall of 40 mm.
April sees the temperatures increase all around with the average high temperature climbing to 64°F (18°C). The average low temperature, likewise, increases to 55°F (13°C).
In May, the rainfall averages fall to 11 mm. High temperatures make a significant jump to 73°F (23°C). Meanwhile, the low temperature average makes a similar climb to 63°F (17°C).
June is the driest month of the year with Santorini expecting no rainfall at all. The general climate warms further with the average low and average high temperatures ranging between 70°F (21°C) and 81°F (27°C).
Santorini Weather in July: It’s a hot month in July with Santorini seeing its highest temperature averages in the year. The high temperature rises to 84°F (29°C) and is matched by the highest daily average of sunshine annually – 14 hours per day. The low temperature is 73°F (23°C).
In August, the average high and average low temperatures remain the same at 84°F (29°C) and 73°F (23°C) respectively. It’s arguably the best month to head to Santorini’s beautiful beaches with sea temperatures at 77°F (25°C).
September marks the beginning of a downward trend in average temperatures. The average high temperature drops by 5 degrees to 79°F (26°C) while the average low temperature decreases a few degrees to 70°F (21°C).
In October, Santorini receives a moderate amount of rainfall with precipitation averages at 38 mm. The average high and average low temperatures measure in at 73°F (23°C) and 64°F (18°C) respectively.
Santorini Weather in November: The climate cools further in November with the high temperatures decreasing significantly to 66°F (19°C). Similarly, the low temperatures drop to 57°F (14°C).
December receives the most rainfall of the year with a precipitation rate of 75 mm. The climate cools further with an average high temperature of 59°F (15°C). The average low temperature is 52°F (11°C) and is accompanied by 6 hours of sunlight, the lowest daily average sunshine in the year.
The best time to visit Santorini for swimming, sun tanning and water activities in general is between the months of June through September. During this time, it’s sunny and hot in Santorini and the water temperatures are at their best. For travelers that are keen on sightseeing, the best time to enjoy the best of the views, wineries, sights and more is during April to May or October until early November. Money conscious travelers will score the best deals in Santorini during the low season of December through March.