September weather forecast
Redway, CA

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Weather in September

September, the first month of the autumn in Redway, is still a pleasant month, with an average temperature varying between 69.8°F (21°C) and 54.3°F (12.4°C).

Temperature

Redway's warmest month, September, generally records average temperatures ranging from a high of 69.8°F (21°C) to a low of 54.3°F (12.4°C).

Humidity

September is the least humid month in Redway, with an average relative humidity of 72%.

Rainfall

In September, in Redway, the rain falls for 3.5 days. Throughout September, 0.47" (12mm) of precipitation is accumulated. In Redway, during the entire year, the rain falls for 102.7 days and collects up to 28.78" (731mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Redway.

Daylight

In September, the average length of the day in Redway is 12h and 26min.
On the first day of the month, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:58 pm PDT.

Sunshine

The average sunshine in September is 10.4h.

UV index

The average daily maximum UV index in September in Redway is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What part of the year is the hottest in Redway?

September, with its average high-temperature of 69.8°F (21°C) and an average low-temperature of 54.3°F (12.4°C), holds the record as the warmest month in Redway, California.

What are the temperatures in Redway in September?

An average high-temperature, in September, in Redway, is 69.8°F (21°C) and the average low-temperature is 54.3°F (12.4°C).

What is the least humid month in Redway?

The least humid month is September, with an average relative humidity of 72%.

What is the average humidity in September in Redway?

The average relative humidity in September in Redway is 72%.

How much does it rain in Redway in September?

In Redway, in September, during 3.5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When it does not snow in Redway?

January, March through December are months without snowfall in Redway, California.

What is the average length of the day in September in Redway?

In September, the average day length is 12h and 26min.

What time are sunrise and sunset in September in Redway?

In September, on the first day of the month, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:58 pm PDT.

How long on average sun shines in September in Redway?

In Redway, the average sunshine duration in September is 10.4h.

How high is the UV index in September in Redway?

The average daily maximum UV index in September in Redway is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Redway, CA

Average temperature in September - Redway, CA
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in September: 54.3°F

The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

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Average pressure in September
Redway, CA

Average pressure in September - Redway, CA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).

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Average wind speed in September
Redway, CA

Average wind speed in September - Redway, CA
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).

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Average humidity in September
Redway, CA

Average humidity in September - Redway, CA
  • Average humidity in September: 72%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).

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Average rainfall in September
Redway, CA

Average rainfall in September - Redway, CA
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in September
Redway, CA

Average rainfall days in September - Redway, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall days in September
Redway, CA

Average snowfall days in September - Redway, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Redway, CA

Average daylight in September / Average sunshine in September - Redway, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Redway, CA

Average sunshine days in September - Redway, CA
  • Average sunshine days in September: 25.9 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).

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Average UV index in September
Redway, CA

Average UV index in September - Redway, CA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in September
Redway, CA

Average cloud cover in September - Redway, CA
  • Average cloud cover in September: 14

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in September
Redway, CA

Average visibility in September - Redway, CA
  • Average visibility in September: 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).

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Redway, California, USA

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