October weather forecast
Tallinn, Estonia

October brings a distinct autumn chill to Tallinn, setting the stage for the winter season. The average temperature takes a downturn, typical of the fall season. As the daylight hours dwindle, the city puts on a grand display of autumn colours before winter's arrival. Rainfall is fairly abundant, encouraging indoor activities and museum visits.

Temperature

Onset of October comes with a temperature decline, the average high falling from a mild 15.2°C (59.4°F) in September to a frosty 9.4°C (48.9°F). During October, Tallinn records an average temperature of 3.8°C (38.8°F) at night.

Humidity

In October, the average relative humidity is 85%.

Rainfall

In October, the rain falls for 16 days. Throughout October, 65mm (2.56") of precipitation is accumulated. In Tallinn, Estonia, during the entire year, the rain falls for 120 days and collects up to 617mm (24.29") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Tallinn, Estonia. October is the first month it typically snows in Tallinn. Throughout October, there are 1 snowfall days. In Tallinn, during the entire year, snow falls for 55.1 days.

Sea temperature

In October, the average sea temperature is 10.8°C (51.4°F).
Note: Entering waters of 10.8°C (51.4°F) is life-endangering. A mere moment in 13°C (55.4°F) waters feels piercing cold, and below 10°C (50°F) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.

Daylight

In Tallinn, the average length of the day in October is 10h and 10min.
On the first day of the month, sunrise is at 07:27 and sunset at 18:53 EEST. On the last day of October, sunrise is at 07:39 and sunset at 16:29 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.

Sunshine

The average sunshine in October is 3h.

UV index

In Tallinn, the average daily maximum UV index in October is 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 1 in October interprets into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.