September weather forecastConstanța, Romania

September

Weather in September

Come September, the weather in Constanța begins to moderate. Transitioning from the hot summer days, the city witnesses a gradual decline in temperatures and daylight hours. The lowering sea temperature reflects this shift towards autumn. However, pleasant weather still provides ample opportunity for outdoor activities and beach recreation. Despite the nearing end of summer, there's still much to explore and enjoy in this dynamic seaside city.

Temperature

September's arrival in Constanța, Romania, subtly correlates with a reduction in the average high-temperature, down from a moderately hot 25.8°C (78.4°F) in August to a pleasant 22.4°C (72.3°F). During September, Constanța sees a mean low-temperature of 14.6°C (58.3°F).

Rainfall

In Constanța, in September, it is raining for 3 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, there are 59 rainfall days, and 396mm (15.59") of precipitation is accumulated.

Snowfall

In Constanța, snow does not fall in April through October.

Sea temperature

In Constanța, in September, the average water temperature is 21°C (69.8°F).
Note: For swimming, a surface water temperature of 21°C (69.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of September in Constanța, sunrise is at 06:29 and sunset at 19:41. On the last day of the month, sunrise is at 07:02 and sunset at 18:48 EEST.

Sunshine

The average sunshine in September is 8h.

UV index

In Constanța, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 5 in September translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Constanța, records 22.4°C (72.3°F), while the low-temperature is 14.6°C (58.3°F).

In September, in Constanța, Romania, the rain falls for 3 days. Throughout September, 29mm (1.14") of precipitation is accumulated.

In Constanța, Romania, snow does not fall in April through October.

In Constanța, the average seawater temperature in September is 21°C (69.8°F). For swimming, a surface water temperature of 21°C (69.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

In September, the average day length in Constanța, Romania, is 12h and 31min.

On the first day of September in Constanța, sunrise is at 06:29 and sunset at 19:41. On the last day of the month, sunrise is at 07:02 and sunset at 18:48 EEST.

In September, the average sunshine duration is 8h.

The average daily maximum UV index in September in Constanța, Romania, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

25.8°C

22.4°C

17°C

Average low temperature

Average rainfall

Average rainfall days

Average snowfall

0mm

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in September
Constanța, Romania

Average high temperature in September: 22.4°C

The warmest month (with the highest average high temperature) is July (25.9°C).
The month with the lowest average high temperature is January (3.7°C).

Average low temperature in September: 14.6°C

The month with the highest average low temperature is July (18°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

Average rainfall in September
Constanța, Romania

Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is November (42mm).
The driest month (with the least rainfall) is March (26mm).

Average rainfall days in September
Constanța, Romania

Average rainfall days in September: 3 days

The months with the highest number of rainy days are May, June, November and December (6 days).
The months with the least rainy days are August and September (3 days).

Average snowfall in September
Constanța, Romania

Average snowfall in September: 0mm

The months with the highest snowfall are January and February (70mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average sea temperature in September
Constanța, Romania

Average sea temperature in September: 21°C

The best month for swimming (with the highest average sea temperature) is August (24°C).
The coldest month (with the lowest average sea temperature) is February (6°C).

Average daylight in September /
Average sunshine in September
Constanța, Romania

Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

Average sunshine in September: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).