Astoria
Oregon, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Astoria, OR

A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia River
A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia River
August, the last month of the summer, in Astoria, is an agreeable month, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 53.1°F (11.7°C).

Temperature

With an average high-temperature of 68.7°F (20.4°C) and an average low-temperature of 53.1°F (11.7°C), August is the warmest month.

Rainfall

In August, the rain falls for 7.4 days. Throughout August, 1.2" (29.5mm) of precipitation is accumulated. In Astoria, during the entire year, the rain falls for 191.1 days and collects up to 67.2" (1708.1mm) of precipitation.

Snowfall

Throughout the year, in Astoria, 1.1" (27.9mm) of snow is accumulated.

Ocean temperature

In August, the average ocean temperature is 56.3°F (13.5°C).
Note: Swimming in 56.3°F (13.5°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Astoria, the average length of the day is 14.1h.

Sunshine

In Astoria, the average sunshine in August is 8h.

UV index

In August, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in August interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Astoria?

The warmest month in Astoria, Oregon, is August, with an average high-temperature of 68.7°F (20.4°C) and an average low-temperature of 53.1°F (11.7°C).

What is the temperature in August in Astoria?

In August, in Astoria, Oregon, the average high-temperature is 68.7°F (20.4°C), and the average low-temperature is 53.1°F (11.7°C).

How much does it rain in Astoria in August?

In August, in Astoria, Oregon, the rain falls for 7.4 days. Throughout August, 1.2" (29.5mm) of precipitation is accumulated.

How cold is the water in August in Astoria?

In Astoria, the average seawater temperature in August is 56.3°F (13.5°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

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

In August, the average length of the day in Astoria, Oregon, is 14.1h.

How many hours of sunshine does Astoria have in August?

The average sunshine in August is 8h.

How high is the UV index in August in Astoria?

The average daily maximum UV index in August in Astoria is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.
Average temperature in August - Astoria, OR
  • Average high temperature in August: 68.7°F

The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is December (48.7°F).

  • Average low temperature in August: 53.1°F

Months with the highest average low temperature are July and August (53.1°F).
The coldest month (with the lowest average low temperature) is December (36.6°F).

Average rainfall in August - Astoria, OR
  • Average rainfall in August: 1.2"

The wettest month (with the highest rainfall) is November (11.2").
The driest month (with the lowest rainfall) is July (1").

Average rainfall days in August - Astoria, OR
  • Average rainfall days in August: 7.4 days

Months with the highest number of rainy days are January and November (21.4 days).
The month with the lowest number of rainy days is August (7.4 days).

Average snowfall in August - Astoria, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.5").
Months with the lowest snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in August - Astoria, OR
  • Average snowfall days in August: 0 days

Months with the highest number of snowfall days are January and February (0.4 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September and October (0 days).

Average sea temperature in August - Astoria, OR
  • Average sea temperature in August: 56.3°F

The best month for swimming (with the highest average sea temperature) is July (56.9°F).
The coldest month (with the lowest average sea temperature) is February (47.7°F).

Average daylight in August / Average sunshine in August - Astoria, OR
  • Average daylight in August: 14.1h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).

  • Average sunshine in August: 8h

The month with most sunshine is July (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 2).

Average UV index in August - Astoria, OR
  • Average UV index in August: 7

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).