Weather in Clatsop County, United States in September

Search

Best
Best
Best
Best
Sea
 
Sea
 
Sea
 
Sea
 
Sea
 
Sea
11°
 
Sea
13°
 
Sea
14°
 
Sea
12°
 
Sea
10°
 
Sea
 
Sea
 

Visiting Clatsop County, United States in September

September is one of the best months to visit Clatsop County for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

September has average maximum temperatures of 20°C (68°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 9cm (3.5inches) making it mostly dry with only intermittent light showers. There are only 12.5 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a cold 12°C (54°F). September is too cold for swimming in Clatsop County for any length of time, unless you have a wetsuit.

Also consider visiting Clatsop County in one of the other best months of June, July, August, for the best beach weather.

Also consider one of our other suggestions for September.

Can you sunbathe in Clatsop County in September?

No, September is not a good time for sunbathing in Clatsop County.

September has average maximum temperatures of 20°C (68°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 9cm (3.5inches) making it mostly dry with only intermittent light showers. There are only 12.5 days with some rainfall so you can still enjoy the beach on the majority of days.

More about September temperature and sunshine.

Can you swim in Clatsop County in September?

No, September is too cold for swimming in Clatsop County for any length of time, with the sea water at 12°C (54°F), unless you have a wetsuit.

More about September sea temperatures.

Is September a good time to holiday in Clatsop County?

Yes, September is a good time for a holiday in Clatsop County.

September has average maximum temperatures of 20°C (68°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 9cm (3.5inches) making it mostly dry with only intermittent light showers. There are only 12.5 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a cold 12°C (54°F). September is too cold for swimming in Clatsop County for any length of time, unless you have a wetsuit.

More about the September temperatures and sunshine.

Is Clatsop County warm in September?

Yes, Clatsop County is not that warm but sunbathing may be possible on some clear days in September.

The average maximum temperature in Clatsop County in September is 20°C (68°F). The average maximum temperature is 20°C (68°) in the previous month and 16°C (61°F) in the next month.

The average temperature in Clatsop County in September is 15°C (59°F). The average temperature is 17°C (62°F) in the previous month and 12°C (53°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Clatsop County in September?

The average day light hours per day in Clatsop County in September are 12.6. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

More about September sunshine.

Temperature in Clatsop County in September

The average maximum temperature in Clatsop County in September is 20°C (68°F). The average maximum temperature is 20°C (68°F) in the previous month and 16°C (61°F) in the next month.

The average temperature in Clatsop County in September is 15°C (59°F). The average temperature is 17°C (62°F) in the previous month and 12°C (53°F) in the next month.

The average minimum temperature in Clatsop County in September is 10°C (51°F). The minimum temperature is 13°C (55°F) in the previous month and 8°C (46°F) in the next month.

Sunshine in Clatsop County in September

During September the average day light hours are 12.6 per day in Clatsop County. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

The ultraviolet index in Clatsop County in September is typically 5.5 during September. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Clatsop County in September

The average sea water temperature in Clatsop County in September is 12°C (53.6°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Rainfall in Clatsop County in September

The average total rainfall in Clatsop County in September is 9cm (3.5inches) and on average there are 12.5 rainy days in September making it a pretty wet time to visit the beach.

Humidity in Clatsop County in September

The maximum dew point (an indicator of humidity) in Clatsop County in September is 13°C (56°F) which is comfortable for everyone. The dew point is 14°C (58°F) in the previous month and 11°C (11°F) in the next month.

The average maximum relative humidity in Clatsop County in September is typically 95.6%. The maximum relative humidity is 95.3% in the previous month and 96.5% in the next month.

The average relative humidity in Clatsop County in September is typically 79.9%. The average relative humidity is 81.2% in the previous month and 81.6% in the next month.

Wind Speed in Clatsop County in September

The average maximum wind speed in Clatsop County in September is typically 26KM/H (16MPH). The average maximum wind speed is 26KM/H (16MPH) in the previous month and 27KM/H (16MPH) in the next month.

The average wind speed in Clatsop County in September is typically 10KM/H (6MPH). The average wind speed is 11KM/H (7MPH) in the previous month and 10KM/H (6MPH) in the next month.

The average wind direction in Clatsop County in September is from the South West.

Monthly Averages

Suggested Beaches in September

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

Booking.com Search FlightsImage

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.