September weather forecast
Warm Beach, WA

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Weather in September

The first month of the autumn, September, is still a comfortable month in Warm Beach, Washington, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 66.2°F (19°C).

Temperature

The shift from August to September coincides with a small decrease in the average high-temperature, down to a refreshing 66.2°F (19°C) from an agreeable 72.3°F (22.4°C). During September, the nighttime temperature in Warm Beach averages of 49.1°F (9.5°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Warm Beach, during September, the rain falls for 13.5 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, in Warm Beach, there are 188.6 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Ocean temperature

In Warm Beach, the average seawater temperature in September is 53.1°F (11.7°C).
Note: Swimming in 53.1°F (11.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Warm Beach, Washington, the average length of the day in September is 12h and 34min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:49 pm PDT.

Sunshine

In Warm Beach, Washington, the average sunshine in September is 9.2h.

UV index

In Warm Beach, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What are the temperatures in Warm Beach in September?

In Warm Beach, in September, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in September in Warm Beach?

The average relative humidity in September in Warm Beach is 78%.

How much does it rain in Warm Beach in September?

In September, in Warm Beach, the rain falls for 13.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Warm Beach?

In Warm Beach, Washington, snow does not fall in May through October.

How cold is the water in September in Warm Beach?

In Warm Beach, Washington, the average seawater temperature in September is 53.1°F (11.7°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 September in Warm Beach?

The average day length in September in Warm Beach is 12h and 34min.

When is the sunrise / sunset in September in Warm Beach?

On the first day of September in Warm Beach, Washington, sunrise is at 6:28 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:49 pm PDT.

How long on average sun shines in September in Warm Beach?

In September, the average sunshine duration is 9.2h.

What is the UV index reading in September in Warm Beach?

The average daily maximum UV index in September in Warm Beach, Washington, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Warm Beach, WA

Average temperature in September - Warm Beach, WA
  • Average high temperature in September: 66.2°F

The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).

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Average pressure in September
Warm Beach, WA

Average pressure in September - Warm Beach, WA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in September
Warm Beach, WA

Average wind speed in September - Warm Beach, WA
  • Average wind speed in September: 3.9mph

The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in September
Warm Beach, WA

Average humidity in September - Warm Beach, WA
  • Average humidity in September: 78%

The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in September
Warm Beach, WA

Average rainfall in September - Warm Beach, WA
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in September
Warm Beach, WA

Average rainfall days in September - Warm Beach, WA
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).

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Average snowfall in September
Warm Beach, WA

Average snowfall in September - Warm Beach, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Warm Beach, WA

Average snowfall days in September - Warm Beach, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Warm Beach, WA

Average sea temperature in September - Warm Beach, WA
  • Average sea temperature in September: 53.1°F

The best month for swimming (with the highest average sea temperature) is August (53.3°F).
The coldest months (with the lowest average sea temperature) are February and March (45.1°F).

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Average daylight in September /
Average sunshine in September
Warm Beach, WA

Average daylight in September / Average sunshine in September - Warm Beach, 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 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in September
Warm Beach, WA

Average sunshine days in September - Warm Beach, WA
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).

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Average UV index in September
Warm Beach, WA

Average UV index in September - Warm Beach, WA
  • Average UV index in September: 4

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

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Average cloud cover in September
Warm Beach, WA

Average cloud cover in September - Warm Beach, WA
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in September
Warm Beach, WA

Average visibility in September - Warm Beach, WA
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).

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Warm Beach, Washington, USA

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