October weather forecastPort Townsend, WA

Victorian design houses from an old age along the beach on a hilly spot overlooking the sea, in Port Townsend, Washington

October

Weather in October

October brings in the full sweep of autumn with a marked decrease in temperature to 55.2°F (12.9°C) highs. Rainfall levels begin their climb, preparing the city for the imminent winter. The colourful foliage of Port Townsend offers a picturesque backdrop to Halloween festivities and harvest celebrations. October's steadily cooling weather matches the changing leaves, signalling that winter lurks around the corner.

Temperature

As October arrives, Port Townsend's weather displays a minor decrease in high-temperatures, transitioning from September's comfortable 63.1°F (17.3°C) to a fresh 55.2°F (12.9°C). A mild drop to an average of 46.9°F (8.3°C) marks the nights during October.

Humidity

The average relative humidity in October is 80%.

Rainfall

In October, the rain falls for 16.1 days. Throughout October, 2.28" (58mm) of precipitation is accumulated. In Port Townsend, during the entire year, the rain falls for 180.3 days and collects up to 21.85" (555mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In October, the average ocean temperature is 50.5°F (10.3°C).
Note: Unprotected swimming in 50.5°F (10.3°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.

Daylight

In Port Townsend, the average length of the day in October is 10h and 49min.
On the first day of the month, sunrise is at 7:11 am and sunset at 6:49 pm. On the last day of October, in Port Townsend, sunrise is at 7:56 am and sunset at 5:53 pm PDT.

Sunshine

In October, the average sunshine is 5.9h.

UV index

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Port Townsend, in October, the average high-temperature is 55.2°F (12.9°C), and the average low-temperature is 46.9°F (8.3°C).

In October, the average relative humidity is 80%.

In Port Townsend, in October, it is raining for 16.1 days, with typically 2.28" (58mm) of accumulated precipitation.

May through October are months without snowfall.

In Port Townsend, in October, it doesn't snow. In November, it regularly snows.

In Port Townsend, in October, the average water temperature is 50.5°F (10.3°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.

In Port Townsend, the average day length in October is 10h and 49min.

On the first day of October, sunrise is at 7:11 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:53 pm PDT.

The average sunshine duration in October is 5.9h.

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S October N D

Sep

October

Nov

Average high temperature

63.1°F

55.2°F

48°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.8mph

6.6mph

8.1mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.7

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

15.6

13.4

9.3

Average UV index

Average cloud cover

Average visibility

Average temperature in October
Port Townsend, WA

Average high temperature in October: 55.2°F

The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is December (43°F).

Average low temperature in October: 46.9°F

The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).

Average pressure in October
Port Townsend, WA

Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).

Average wind speed in October
Port Townsend, WA

Average wind speed in October: 5.8mph

The windiest month (with the highest average wind speed) is November (7.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in October
Port Townsend, WA

Average humidity in October: 80%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (75%).

Average rainfall in October
Port Townsend, WA

Average rainfall in October: 2.28"

The wettest month (with the highest rainfall) is November (2.91").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in October
Port Townsend, WA

Average rainfall days in October: 16.1 days

The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.6 days).

Average snowfall in October
Port Townsend, WA

Average snowfall in October: 0"

The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Port Townsend, WA

Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in October
Port Townsend, WA

Average sea temperature in October: 50.5°F

The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).

Average daylight in October /
Average sunshine in October
Port Townsend, WA

Average daylight in October: 10h and 48min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in October: 5h and 54min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in October
Port Townsend, WA

Average sunshine days in October: 13.4 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.2 days).

Average UV index in October
Port Townsend, WA

Average UV index in October: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Port Townsend, WA

Average cloud cover in October: 37

The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in October
Port Townsend, WA

Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).