September weather forecast
Olympic Hot Springs, WA

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Weather in September

September, the first month of the autumn in Olympic Hot Springs, is still a comfortable month, with an average temperature fluctuating between 44.8°F (7.1°C) and 62.2°F (16.8°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from an agreeable 68.5°F (20.3°C) in August to an enjoyable 62.2°F (16.8°C). During the month of September, an average temperature of 44.8°F (7.1°C) is noted during the nights in Olympic Hot Springs, Washington.

Humidity

The average relative humidity in September in Olympic Hot Springs, Washington, is 80%.

Rainfall

In Olympic Hot Springs, in September, it is raining for 13.1 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Olympic Hot Springs, Washington, there are 153 rainfall days, and 43.74" (1111mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Olympic Hot Springs are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Olympic Hot Springs, Washington, during the entire year, snow falls for 99.3 days and aggregates up to 150.98" (3835mm) of snow.

Daylight

In Olympic Hot Springs, the average length of the day in September is 12h and 33min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:54 pm. On the last day of September, in Olympic Hot Springs, sunrise is at 7:13 am and sunset at 6:55 pm PDT.

Sunshine

In Olympic Hot Springs, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 3 during September translates into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Olympic Hot Springs?

The high-temperature, in September, in Olympic Hot Springs, is 62.2°F (16.8°C), while the low-temperature averages to 44.8°F (7.1°C).

What is the average humidity in September in Olympic Hot Springs?

In September, the average relative humidity in Olympic Hot Springs is 80%.

How many days does it rain in September in Olympic Hot Springs?

In Olympic Hot Springs, during September, the rain falls for 13.1 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When does it start snowing in Olympic Hot Springs?

September is the first month it typically snows in Olympic Hot Springs, Washington. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Olympic Hot Springs?

The average day length in September is 12h and 33min.

What time are sunrise and sunset in September in Olympic Hot Springs?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:54 pm. On the last day of the month, in Olympic Hot Springs, Washington, sunrise is at 7:13 am and sunset at 6:55 pm PDT.

How many hours of sunshine does Olympic Hot Springs have in September?

In September, the average sunshine duration in Olympic Hot Springs, Washington, is 8.5h.

How high is the UV index in September in Olympic Hot Springs?

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate 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 September
Olympic Hot Springs, WA

Average temperature in September - Olympic Hot Springs, WA
  • Average high temperature in September: 62.2°F

The warmest month (with the highest average high temperature) is August (68.5°F).
The month with the lowest average high temperature is December (37.9°F).

  • Average low temperature in September: 44.8°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is February (29.7°F).

Average pressure in September
Olympic Hot Springs, WA

Average pressure in September - Olympic Hot Springs, WA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in September
Olympic Hot Springs, WA

Average wind speed in September - Olympic Hot Springs, WA
  • Average wind speed in September: 3.2mph

The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3mph).

Average humidity in September
Olympic Hot Springs, WA

Average humidity in September - Olympic Hot Springs, WA
  • Average humidity in September: 80%

The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Olympic Hot Springs, WA

Average rainfall in September - Olympic Hot Springs, WA
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is January (8.66").
The driest month (with the least rainfall) is July (0.79").

Average rainfall days in September
Olympic Hot Springs, WA

Average rainfall days in September - Olympic Hot Springs, WA
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is October (16.4 days).
The month with the least rainy days is August (7 days).

Average snowfall in September
Olympic Hot Springs, WA

Average snowfall in September - Olympic Hot Springs, WA
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (43.43").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Olympic Hot Springs, WA

Average snowfall days in September - Olympic Hot Springs, WA
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is March (19 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Olympic Hot Springs, WA

Average daylight in September / Average sunshine in September - Olympic Hot Springs, 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: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in September
Olympic Hot Springs, WA

Average sunshine days in September - Olympic Hot Springs, WA
  • Average sunshine days in September: 14 days

The month with the most sunshine days is August (21 days).
The month with the least sunshine days is March (5.8 days).

Average UV index in September
Olympic Hot Springs, WA

Average UV index in September - Olympic Hot Springs, WA
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Olympic Hot Springs, WA

Average cloud cover in September - Olympic Hot Springs, WA
  • Average cloud cover in September: 40

The months with the most cloud cover are January, February and March (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Olympic Hot Springs, WA

Average visibility in September - Olympic Hot Springs, WA
  • Average visibility in September: 4mi

The months with the highest visibility are May, June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, September, October, November and December (4mi).

Olympic Hot Springs, Washington, USA

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