September weather forecast and climate
Ventspils, Latvia

Weather in September

September, the first month of the autumn, in Ventspils, is also an enjoyable month, with average temperature varying between 16.1°C (61°F) and 12.5°C (54.5°F).

Temperature

In Ventspils, the average high-temperature in September slightly decreases, from an enjoyable 19.9°C (67.8°F) in August, to a still comfortable 16.1°C (61°F). In Ventspils, the average low-temperature is 12.5°C (54.5°F).

Humidity

In Ventspils, Latvia, the average relative humidity is 77%.

Rainfall

In Ventspils, during 16 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, in Ventspils, there are 171.4 rainfall days, and 565mm (22.24") of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Ventspils.

Sea temperature

In Ventspils, Latvia, the average seawater temperature is 16.5°C (61.7°F).
Note: For most, swimming in 16.5°C (61.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In September, the average length of the day in Ventspils is 12.8h.

Sunshine

In Ventspils, the average sunshine in September is 7.6h.

UV index

In Ventspils, Latvia, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Ventspils?

The average relative humidity in September is 77%.

How much does it rain in Ventspils in September?

In Ventspils, Latvia, in September, it is raining for 16 days, with typically 55mm (2.17") of accumulated precipitation.

When it does not snow in Ventspils?

In Ventspils, Latvia, snow does not fall in June through September.

Does it snow in Ventspils in September?

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

How cold is the water in September in Ventspils?

In September, the average sea temperature is 16.5°C (61.7°F). Swimming in 16.5°C (61.7°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Ventspils have in September?

In Ventspils, Latvia, the average length of the day in September is 12.8h.

How many hours of sunshine does Ventspils have in September?

In Ventspils, Latvia, the average sunshine in September is 7.6h.

How high is the UV index in September in Ventspils?

The average daily maximum UV index in September in Ventspils, Latvia, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
Ventspils, Latvia

Average temperature in September - Ventspils, Latvia
  • Average high temperature in September: 16.1°C

The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is February (0.4°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (15.6°C).
The coldest month (with the lowest average low temperature) is February (-2.1°C).

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Average pressure in September
Ventspils, Latvia

Average pressure in September - Ventspils, Latvia
  • Average pressure in September: 1014.7mbar

The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is December (1009.9mbar).

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Average wind speed in September
Ventspils, Latvia

Average wind speed in September - Ventspils, Latvia
  • Average wind speed in September: 20.8km/h

The windiest month (with the highest average wind speed) is December (25.5km/h).
The calmest month (with the lowest average wind speed) is May (16.9km/h).

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Average humidity in September
Ventspils, Latvia

Average humidity in September - Ventspils, Latvia
  • Average humidity in September: 77%

Months with the highest relative humidity are January and February (86%).
Months with the lowest relative humidity are May, June and August (75%).

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Average rainfall in September
Ventspils, Latvia

Average rainfall in September - Ventspils, Latvia
  • Average rainfall in September: 55mm

The wettest months (with the highest rainfall) are July and October (67mm).
The driest month (with the least rainfall) is April (20mm).

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Average rainfall days in September
Ventspils, Latvia

Average rainfall days in September - Ventspils, Latvia
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is February (9 days).

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Average snowfall in September
Ventspils, Latvia

Average snowfall in September - Ventspils, Latvia
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (103mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in September
Ventspils, Latvia

Average snowfall days in September - Ventspils, Latvia
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in September
Ventspils, Latvia

Average sea temperature in September - Ventspils, Latvia
  • Average sea temperature in September: 16.5°C

The best month for swimming (with the highest average sea temperature) is August (18.9°C).
The coldest month (with the lowest average sea temperature) is March (1.2°C).

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

Average daylight in September / Average sunshine in September - Ventspils, Latvia
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 17.9h).
The month with the shortest days is December (Average daylight: 6.7h).

  • Average sunshine in September: 7.6h

The month with the most sunshine is June (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 1.9h).

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Average sunshine days in September
Ventspils, Latvia

Average sunshine days in September - Ventspils, Latvia
  • Average sunshine days in September: 10.3 days

The month with the most sunshine days is May (15.7 days).
The month with the least sunshine days is December (4.4 days).

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Average UV index in September
Ventspils, Latvia

Average UV index in September - Ventspils, Latvia
  • Average UV index in September: 4

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

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Average cloud cover in September
Ventspils, Latvia

Average cloud cover in September - Ventspils, Latvia
  • Average cloud cover in September: 44

The month with the most cloud cover is December (Cloud cover 77).
Months with the least cloud cover are June and August (Cloud cover 34).

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Average visibility in September
Ventspils, Latvia

Average visibility in September - Ventspils, Latvia
  • Average visibility in September: 10km

Months with the highest visibility are May, June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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