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Romania

Romania - Coast weather in September 2025

Romania

Romania - Coast weather in September 2025

 

Day

23 °C

 

Night

15 °C

 

Sea

21 °C

 

Precipitation

38 mm

in month

 

Rainy days

5 days

in month

 

Daylight

12 hours

average

 

Sunshine

6 hours

average

 

Humidity

77 %

 

Day

23 °C

 

Night

15 °C

 

Sea

21 °C

 

Precipitation

38 mm

in month

 

Rainy days

5 days

in month

 

Daylight

12 hours

average

 

Sunshine

6 hours

average

 

Humidity

77 %

Overview: Romania - Coast
In Romania - Coast in September, the average air temperature ranges from 23 °C (73 °F) during the day to 15 °C (58 °F) at night. There are 5 days of rain on average, where the rainfall is 38 mm (1.49 in).

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Aerial view of beach in Constanta at sunset time
Architecture in Constanta in partly cloudy weather
Beach in Mamaia on a day with cloudy weather

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Weather overview and FAQs

Weather overview

In Romania - Coast in September, the average air temperature ranges from 23 °C (73 °F) during the day to 15 °C (58 °F) at night. There are 5 days of rain on average, where the rainfall is 38 mm (1.49 in).

Are there good conditions to visit in Romania - Coast in September?

There are good conditions for visiting in September in Romania - Coast. There are only 5 days of rain in the whole month, so you can leave your umbrella at home. There are some people, who may feel a slight chill at 23 °C (73 °F), but others will feel perfectly fine. A sea temperature of 21 °C (70 °F) can seem colder to some, but others will call it refreshing. The temperature of 15 °C (58 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

What is the sea temperature in Romania - Coast in September?

The temperature of the sea in Romania - Coast in September is 21 °C (70 °F). The sea at this temperature is quite cold, but it is already possible to stay in it for a long time and it is pleasantly refreshing on hot, steamy days.

What temperature can I expect during the day in September in Romania - Coast?

In September in Romania - Coast, the average daily temperatures will be 23 °C (73 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

Is September part of the wet season in Romania - Coast?

No, there is no wet season in Romania - Coast in September - you can expect 5 days of rain during the month.

How many days of precipitation on average can I expect in Romania - Coast in September?

In Romania - Coast in September, we can expect 5 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.1 days of the week, or in general - 16 % days.

How many sunny hours can I expect in September in Romania - Coast?

There is an average length of sunshine of 6 hours per day in September in Romania - Coast.

What is the night temperature in Romania - Coast in September?

The average night temperature in Romania - Coast in September is 15 °C (58 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.

What is the humidity in Romania - Coast in September?

In Romania - Coast in September, expect humidity around 77 %.

Is there a dry season in September in Romania - Coast?

Yes, there is a dry season in September in Romania - Coast with just 5 days during the month being rainy.

Is the weather in Romania - Coast warmer in September than in October?

Yes, in Romania - Coast in September it is warmer than in October by 6 °C (42 °F).

Is Romania - Coast rainier in September than in October?

No, in Romania - Coast in September it does not rain more than in October.

How long is the day (from dawn till dusk) in Romania - Coast in September?

The length of daylight in Romania - Coast in September is 12 hours.

How windy is it in September in Romania - Coast?

In Romania - Coast in September, there will be an average wind scale of 4.

Is the sea in Romania - Coast warmer in September than in August?

No, the sea is not warmer in Romania - Coast in September than in August.

What is the temperature trend in Romania - Coast in September?

During September in Romania - Coast, the day temperatures are decreasing - from 25 °C (77 °F) at the beginning of the month to 20 °C (68 °F) at the end of the month.

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