January weather forecast
Westport, WA

Share

Weather in January

January, the same as December, in Westport, Washington, is another chilly winter month, with an average temperature ranging between max 46°F (7.8°C) and min 38.1°F (3.4°C).

Temperature

Westport, Washington, in January witnesses an average high-temperature of a still frosty 46°F (7.8°C), indicating a slight variation from December's 45.1°F (7.3°C). January nights in Westport, Washington, witness a slight temperature decrease, averaging at an icy 38.1°F (3.4°C).

Humidity

In January, the average relative humidity is 86%.

Rainfall

In Westport, in January, it is raining for 19.4 days, with typically 7.87" (200mm) of accumulated precipitation. Throughout the year, in Westport, there are 186.2 rainfall days, and 48.78" (1239mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and November. January is the first month it typically snows in Westport. Throughout January, in the average 1 snowfall days, it receives 0.67" (17mm) of snow. In Westport, during the entire year, snow falls for 4.3 days and aggregates up to 2.52" (64mm) of snow.

Ocean temperature

In Westport, in January, the average water temperature is 48.4°F (9.1°C).
Note: Swimming at temperatures less than 50°F (10°C) in 48.4°F (9.1°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.

Daylight

The average length of the day in January in Westport is 9h and 2min.
On the first day of January in Westport, sunrise is at 8:01 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:17 pm PST.

Sunshine

With an average of 3.4h of sunshine, January has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Westport, Washington. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 2 in January leads to these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Westport in January?

In Westport, 46°F (7.8°C) is the average high-temperature and 38.1°F (3.4°C) is the average low-temperature during January.

What is the average humidity in January in Westport?

In January, the average relative humidity in Westport is 86%.

How many days does it rain in January in Westport?

In Westport, during January, the rain falls for 19.4 days and regularly aggregates up to 7.87" (200mm) of precipitation.

When does it start to snow in Westport?

January is the first month it typically snows in Westport, Washington. Throughout January, in the average 1 snowfall days, it receives 0.67" (17mm) of snow.

What is the water temperature in January in Westport?

In January, the average ocean temperature is 48.4°F (9.1°C). Swimming in 48.4°F (9.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Westport?

In Westport, Washington, the average day length in January is 9h and 2min.

When are sunrise and sunset in January in Westport?

In January, on the first day of the month, sunrise is at 8:01 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:17 pm PST.

What is the month with the least sunshine in Westport?

January has the least sunshine of the year in Westport, Washington, with an average of 3.4h of sunshine.

How many hours of sunshine does Westport have in January?

The average sunshine duration in January in Westport is 3.4h.

When is the lowest UV index in Westport?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Westport, Washington.

How high is the UV index in January in Westport?

In Westport, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Westport, WA

Average temperature in January - Westport, WA
  • Average high temperature in January: 46°F

The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is December (45.1°F).

  • Average low temperature in January: 38.1°F

The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (37.6°F).

Average pressure in January
Westport, WA

Average pressure in January - Westport, WA
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in January
Westport, WA

Average wind speed in January - Westport, WA
  • Average wind speed in January: 8.2mph

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

Average humidity in January
Westport, WA

Average humidity in January - Westport, WA
  • Average humidity in January: 86%

The months with the highest relative humidity are November and December (87%).
The month with the lowest relative humidity is July (79%).

Average rainfall in January
Westport, WA

Average rainfall in January - Westport, WA
  • Average rainfall in January: 7.87"

The wettest month (with the highest rainfall) is December (7.99").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in January
Westport, WA

Average rainfall days in January - Westport, WA
  • Average rainfall days in January: 19.4 days

The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is August (6.7 days).

Average snowfall in January
Westport, WA

Average snowfall in January - Westport, WA
  • Average snowfall in January: 0.67"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

Average snowfall days in January
Westport, WA

Average snowfall days in January - Westport, WA
  • Average snowfall days in January: 1 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

Average sea temperature in January
Westport, WA

Average sea temperature in January - Westport, WA
  • Average sea temperature in January: 48.4°F

The best month for swimming (with the highest average sea temperature) is July (57.7°F).
The coldest month (with the lowest average sea temperature) is February (47.6°F).

Average daylight in January /
Average sunshine in January
Westport, WA

Average daylight in January / Average sunshine in January - Westport, WA
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in January
Westport, WA

Average sunshine days in January - Westport, WA
  • Average sunshine days in January: 10.2 days

The month with the most sunshine days is August (21.4 days).
The months with the least sunshine days are February and November (8 days).

Average UV index in January
Westport, WA

Average UV index in January - Westport, WA
  • Average UV index in January: 2

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Westport, WA

Average cloud cover in January - Westport, WA
  • Average cloud cover in January: 64

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in January
Westport, WA

Average visibility in January - Westport, WA
  • Average visibility in January: 5mi

The months with the highest visibility are March and April (6mi).
The month with the lowest visibility is August (4mi).

Westport, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location