September weather forecast
Point Arena, CA

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Tall Lighthouse in Point Arena, California, near the high rocks and cliffs of the shores
Tall Lighthouse in Point Arena, California, near the high rocks and cliffs of the shores

Weather in September

September, the first month of the autumn in Point Arena, is also a moderately hot month, with an average temperature fluctuating between 80.8°F (27.1°C) and 51.4°F (10.8°C).

Temperature

Point Arena starts September with an average high-temperature of a still moderately hot 80.8°F (27.1°C), hinting at a minimal fluctuation from August. Point Arena registers a significant drop in temperature in September, with average nighttime lows of 51.4°F (10.8°C).

Heat index

The heat index value during September is appraised at 82.4°F (28°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The months with the lowest humidity in Point Arena, California, are July and September, with an average relative humidity of 58%.

Rainfall

In Point Arena, in September, it is raining for 2.5 days, with typically 0.2" (5mm) of accumulated precipitation. In Point Arena, during the entire year, the rain falls for 83.3 days and collects up to 17.72" (450mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Point Arena.

Daylight

In Point Arena, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:44 pm. On the last day of September, in Point Arena, sunrise is at 7:10 am and sunset at 6:58 pm PDT.

Sunshine

In September, the average sunshine in Point Arena is 10.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What is the average September temperature in Point Arena?

The high-temperature, in September, in Point Arena, records 80.8°F (27.1°C), while the low-temperature is 51.4°F (10.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is appraised at 82.4°F (28°C).

What are the least humid months in Point Arena?

July and September, with an average relative humidity of 58%, are the least humid months in Point Arena, California.

What is the average humidity in September in Point Arena?

In Point Arena, the average relative humidity in September is 58%.

How many days does it rain in September in Point Arena?

In Point Arena, during September, the rain falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow in Point Arena?

In Point Arena, snow does not fall in January, March through December.

How many hours of daylight does Point Arena have in September?

In September, the average day length is 12h and 25min.

When is the sunrise / sunset in September in Point Arena?

On the first day of September in Point Arena, sunrise is at 6:44 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:58 pm PDT.

How long on average sun shines in September in Point Arena?

In September, the average sunshine duration in Point Arena, California, is 10.9h.

How high is the UV index in September in Point Arena?

In Point Arena, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average max. wind speed
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
Point Arena, CA

Average temperature in September - Point Arena, CA
  • Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure in September
Point Arena, CA

Average pressure in September - Point Arena, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in September
Point Arena, CA

Average wind speed in September - Point Arena, CA
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in September
Point Arena, CA

Average humidity in September - Point Arena, CA
  • Average humidity in September: 58%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

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Average rainfall in September
Point Arena, CA

Average rainfall in September - Point Arena, CA
  • Average rainfall in September: 0.2"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in September
Point Arena, CA

Average rainfall days in September - Point Arena, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in September
Point Arena, CA

Average snowfall in September - Point Arena, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Point Arena, CA

Average snowfall days in September - Point Arena, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 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
Point Arena, CA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Point Arena, CA

Average sunshine days in September - Point Arena, CA
  • Average sunshine days in September: 26.9 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in September
Point Arena, CA

Average UV index in September - Point Arena, CA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).

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Average cloud cover in September
Point Arena, CA

Average cloud cover in September - Point Arena, CA
  • Average cloud cover in September: 11

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in September
Point Arena, CA

Average visibility in September - Point Arena, CA
  • Average visibility in September: 6mi

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

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Point Arena, California, USA

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