September weather forecastDaugavgrīva, Latvia

September

Weather in September

September in Daugavgrīva initiates a visible shift from the sizzling summer towards the crisp autumn season. The arrival of autumn is marked by the fall foliage decorating the city streets, cooler temperatures, and shorter days. The decrease in humidity and rainfall compared to the summer months justifies the venture outdoors for some apple picking or scenic drives. Furthermore, September's predominant weather event in Daugavgrīva is the resumption of snowfall, though minor, around 7mm (0.28") over not more than a day roughly. With October approaching, the concealing of summer attire and preparation for cooler times starts to proliferate.

Temperature

Daugavgrīva's weather subtly changes with the onset of September, barely falling from an agreeable 21.5°C (70.7°F) in August to a comfortable 16.8°C (62.2°F). Nighttime temperatures in September average to a fresh 10.8°C (51.4°F) in Daugavgrīva.

Humidity

The average relative humidity in September in Daugavgrīva is 78%.

Rainfall

In Daugavgrīva, in September, it is raining for 14.7 days, with typically 32mm (1.26") of accumulated precipitation. In Daugavgrīva, during the entire year, the rain falls for 142 days and collects up to 382mm (15.04") of precipitation.

Snowfall

In Daugavgrīva, snow does not fall in May through September.

Sea temperature

In Daugavgrīva, in September, the average water temperature is 16.3°C (61.3°F).
Note: Most people find swimming in 16.3°C (61.3°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).

Daylight

In Daugavgrīva, the average length of the day in September is 12h and 46min.
On the first day of the month, sunrise is at 06:27 and sunset at 20:20. On the last day of September, sunrise is at 07:26 and sunset at 19:01 EEST.

Sunshine

In Daugavgrīva, Latvia, the average sunshine in September is 7.7h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: During September, 3 as the daily maximum UV index converts into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Feb 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in September, in Daugavgrīva, is 16.8°C (62.2°F), while the average low-temperature is 10.8°C (51.4°F).

In Daugavgrīva, the average relative humidity in September is 78%.

In Daugavgrīva, Latvia, in September, during 14.7 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

In Daugavgrīva, snow does not fall in May through September.

In Daugavgrīva, Latvia, in September, it doesn't snow. In October, it regularly snows.

In September, the average sea temperature is 16.3°C (61.3°F). For swimming, a surface water temperature of 16.3°C (61.3°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).

The average day length in September in Daugavgrīva, Latvia, is 12h and 46min.

In September, on the first day of the month, sunrise is at 06:27 and sunset at 20:20. On the last day of the month, sunrise is at 07:26 and sunset at 19:01 EEST.

In Daugavgrīva, Latvia, the average sunshine duration in September is 7.7h.

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Aug

September

Oct

Average high temperature

21.5°C

16.8°C

9.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.1km/h

15.9km/h

18km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.6

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

14.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Daugavgrīva, Latvia

Average high temperature in September: 16.8°C

The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-1.3°C).

Average low temperature in September: 10.8°C

The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

Average pressure in September
Daugavgrīva, Latvia

Average pressure in September: 1015.4mbar

The month with the highest atmospheric pressure is October (1016.1mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).

Average wind speed in September
Daugavgrīva, Latvia

Average wind speed in September: 15.5km/h

The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).

Average humidity in September
Daugavgrīva, Latvia

Average humidity in September: 78%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (72%).

Average rainfall in September
Daugavgrīva, Latvia

Average rainfall in September: 32mm

The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in September
Daugavgrīva, Latvia

Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (6 days).

Average snowfall in September
Daugavgrīva, Latvia

Average snowfall in September: 0mm

The month with the highest snowfall is January (84mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Daugavgrīva, Latvia

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in September
Daugavgrīva, Latvia

Average sea temperature in September: 16.3°C

The best month for swimming (with the highest average sea temperature) is July (19.8°C).
The coldest months (with the lowest average sea temperature) are February and March (0.2°C).

Average daylight in September /
Average sunshine in September
Daugavgrīva, Latvia

Average daylight in September: 12h and 48min

The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).

Average sunshine in September: 7h and 42min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).

Average sunshine days in September
Daugavgrīva, Latvia

Average sunshine days in September: 13 days

The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is December (10.1 days).

Average UV index in September
Daugavgrīva, Latvia

Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September
Daugavgrīva, Latvia

Average cloud cover in September: 46

The month with the most cloud cover is December (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Daugavgrīva, Latvia

Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).