Syros Weather by Month — Temperature & Rainfall Guide

Syros is a region in Greece. Many people wonder what the weather conditions are in Syros over the year. What is the best time to visit Syros?

This page shows the average weather conditions by month in Syros over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Syros is generally tolerable. January is a winter month. In Ermoupoli you can expect mild maximum average daytime temperatures around 15°C (59°F) and nighttime temperatures around 11°C (52°F). On average, this month is the coldest month of the year in Syros.

Find more detailed climate information for Syros in January here.

In February the weather in Syros is generally tolerable. February is a winter month. In Ermoupoli you can expect mild maximum average daytime temperatures around 15°C (59°F) and nighttime temperatures around 12°C (54°F).

Find more detailed climate information for Syros in February here.

In March the weather in Syros is generally tolerable. March is a winter month. In Ermoupoli you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 13°C (55°F).

Find more detailed climate information for Syros in March here.

In April the weather in Syros is generally perfect. In Ermoupoli you can expect mild maximum average daytime temperatures around 18°C (64°F) and nighttime temperatures around 15°C (59°F).

Find more detailed climate information for Syros in April here.

In May the weather in Syros is generally perfect. In Ermoupoli you can expect pleasant maximum average daytime temperatures around 21°C (70°F) and nighttime temperatures around 18°C (64°F).

Find more detailed climate information for Syros in May here.

In June the weather in Syros is generally perfect. In Ermoupoli you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Syros in June here.

In July the weather in Syros is generally perfect. July is a summer month. In Ermoupoli you can expect warm maximum average daytime temperatures around 27°C (81°F) and nighttime temperatures around 24°C (75°F).

Find more detailed climate information for Syros in July here.

In August the weather in Syros is generally perfect. August is a summer month. In Ermoupoli you can expect warm maximum average daytime temperatures around 27°C (81°F) and nighttime temperatures around 24°C (75°F). On average, this month is one of the warmest months of the year in Syros. So be prepared and make sure to dress lightly.

Find more detailed climate information for Syros in August here.

In September the weather in Syros is generally perfect. September is a summer month. In Ermoupoli you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Syros in September here.

In October the weather in Syros is generally perfect. In Ermoupoli you can expect warm maximum average daytime temperatures around 22°C (72°F) and nighttime temperatures around 19°C (66°F).

Find more detailed climate information for Syros in October here.

In November the weather in Syros is generally pleasant. In Ermoupoli you can expect pleasant maximum average daytime temperatures around 19°C (66°F) and nighttime temperatures around 16°C (61°F).

Find more detailed climate information for Syros in November here.

In December the weather in Syros is generally tolerable. In Ermoupoli you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 13°C (55°F).

Find more detailed climate information for Syros in December here.