Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September brings a small shift in high-temperatures, falling from a moderately hot 73.6°F (23.1°C) in August to an enjoyable 67.3°F (19.6°C). During September, the average low-temperature is a cool 51.8°F (11°C).Humidity
The average relative humidity in September is 76%.Rainfall
In Port Gamble, during September, the rain falls for 11.3 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Port Gamble, during the entire year, the rain falls for 179.1 days and collects up to 24.57" (624mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
The months with the warmest seawater are August and September, with an average ocean temperature of 53.2°F (11.8°C).Note: Without suitable protection, venturing into 53.2°F (11.8°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.
Daylight
In Port Gamble, the average length of the day in September is 12h and 33min.On the first day of September in Port Gamble, sunrise is at 6:29 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:50 pm PDT.
Sunshine
In Port Gamble, the average sunshine in September is 9.6h.UV index
In Port Gamble, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
When is the ocean warmest?
What is the ocean temperature in September?
How many hours of daylight does Port Gamble have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Port Gamble have in September?
What is the UV index intensity in September?
Average temperature in September
Port Gamble, WA
- Average high temperature in September: 67.3°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is December (43.2°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).
Average pressure in September
Port Gamble, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in September
Port Gamble, WA
- Average wind speed in September: 4mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in September
Port Gamble, WA
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Port Gamble, WA
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is January (3.74").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Port Gamble, WA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in September
Port Gamble, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Port Gamble, WA
- Average snowfall days in September: 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 September
Port Gamble, WA
- Average sea temperature in September: 53.1°F
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in September /
Average sunshine in September
Port Gamble, WA
- Average daylight in September: 12h and 4min
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 30min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Port Gamble, WA
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
Port Gamble, WA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Port Gamble, WA
- Average cloud cover in September: 30
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Port Gamble, WA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Port Gamble, Washington, USA
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