Riga
Latvia
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Riga, Latvia

A sunny day in Riga, Latvia, with a view of the river and a clear skyscape
A sunny day in Riga, Latvia, with a view of the river and a clear skyscape
The last month of the summer, August, is also an agreeable month in Riga, Latvia, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 21°C (69.8°F).

Temperature

In August, the average high-temperature is essentially the same as in July - a still agreeable 21°C (69.8°F). In August, in Riga, Latvia, the average low-temperature is 11.8°C (53.2°F).

Humidity

The average relative humidity is 76.7%.

Rainfall

In Riga, during 13.7 rainfall days, 73.1mm (2.9") of precipitation is typically accumulated. In Riga, Latvia, during the entire year, the rain falls for 185.7 days and collects up to 621.9mm (24.5") of precipitation.

Sea temperature

With an average sea temperature of 17°C (62.6°F), August is the month with the warmest seawater in Riga. For most, swimming in 17°C (62.6°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 August, the average length of the day is 15.1h.

Sunshine

In Riga, the average sunshine in August is 7.4h.

UV index

The average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

What is the temperature in August in Riga?

The average high-temperature, in August, is 21°C (69.8°F), while the average low-temperature is 11.8°C (53.2°F).

What is the average humidity in August in Riga?

In Riga, Latvia, the average relative humidity in August is 76.7%.

How much does it rain in Riga in August?

In Riga, in August, it is raining for 13.7 days, with typically 73.1mm (2.9") of accumulated precipitation.

What month is the sea warmest in Riga?

With an average sea temperature of 17°C (62.6°F), August is the month with the warmest seawater. Swimming in 17°C (62.6°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the sea water temperature in August in Riga?

In Riga, Latvia, the average seawater temperature in August is 17°C (62.6°F). For swimming, a surface water temperature of 17°C (62.6°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).

What is the average length of the day in August in Riga?

In Riga, Latvia, the average length of the day in August is 15.1h.

How many hours of sunshine does Riga have in August?

In Riga, the average sunshine in August is 7.4h.

What is the UV index reading in August in Riga?

In Riga, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.
Average temperature in August - Riga, Latvia
  • Average high temperature in August: 21°C

The warmest month (with the highest average high temperature) is July (21.7°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in August: 11.8°C

The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-7.8°C).

Average humidity in August - Riga, Latvia
  • Average humidity in August: 76.7%

The month with the highest relative humidity is November (90.2%).
The month with the lowest relative humidity is May (67.7%).

Average rainfall in August - Riga, Latvia
  • Average rainfall in August: 73.1mm

The wettest month (with the highest rainfall) is September (78.9mm).
The driest month (with the lowest rainfall) is February (27mm).

Average rainfall days in August - Riga, Latvia
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is January (21.5 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in August - Riga, Latvia
  • Average sea temperature in August: 17°C

The best month for swimming (with the highest average sea temperature) is August (17°C).
Coldest months (with the lowest average sea temperature) are February and March (1°C).

Average daylight in August / Average sunshine in August - Riga, Latvia
  • Average daylight in August: 15.1h

The month with the longest days is June (Average daylight: 17.8h).
The month with shortest days is December (Average daylight: 6.9h).

  • Average sunshine in August: 7.4h

The month with most sunshine is June (Average sunshine: 9.6h).
The month with least sunshine is December (Average sunshine: 0.7h).

Average UV index in August - Riga, Latvia
  • Average UV index in August: 5

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January, November and December (UV index 0).