September weather forecast
Lagunitas, CA

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Weather in September

September, the first month of the autumn in Lagunitas, is also an agreeable month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 56.3°F (13.5°C).

Temperature

In Lagunitas, the month of September registers the highest temperatures, averaging 70.9°F (21.6°C) at the peak and 56.3°F (13.5°C) at the lowest.

Humidity

In September, the average relative humidity in Lagunitas is 73%.

Rainfall

In Lagunitas, in September, it is raining for 3.4 days, with typically 0.12" (3mm) of accumulated precipitation. In Lagunitas, during the entire year, the rain falls for 80.3 days and collects up to 15.98" (406mm) of precipitation.

Snowfall

January through November are months without snowfall in Lagunitas, California.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:39 pm. On the last day of September, in Lagunitas, sunrise is at 7:06 am and sunset at 6:54 pm PDT.

Sunshine

In Lagunitas, the average sunshine in September is 10.5h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 5 in September transforms into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What part of the year is the hottest in Lagunitas?

Lagunitas's September weather, with an average high temperature of 70.9°F (21.6°C) and an average low temperature of 56.3°F (13.5°C), tends to be the warmest of the year.

What is the usual temperature for Lagunitas in September?

In Lagunitas, in September, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 56.3°F (13.5°C).

What is the average humidity in September in Lagunitas?

The average relative humidity in September in Lagunitas, California, is 73%.

How much does it rain in Lagunitas in September?

In Lagunitas, in September, during 3.4 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

When it does not snow in Lagunitas?

In Lagunitas, California, snow does not fall in January through November.

How many hours of daylight does Lagunitas have in September?

The average day length in September in Lagunitas, California, is 12h and 25min.

What time are sunrise and sunset in September in Lagunitas?

On the first day of September, sunrise is at 6:41 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm PDT.

How many hours of sunshine does Lagunitas have in September?

In September, the average sunshine duration in Lagunitas, California, is 10.5h.

What are the months with the highest UV index in Lagunitas?

The months with the highest UV index in Lagunitas, California, are June through September, with an average maximum UV index of 5.

What is the UV index intensity in September in Lagunitas?

In Lagunitas, California, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Lagunitas, CA

Average temperature in September - Lagunitas, CA
  • Average high temperature in September: 70.9°F

The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).

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Average pressure in September
Lagunitas, CA

Average pressure in September - Lagunitas, 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
Lagunitas, CA

Average wind speed in September - Lagunitas, CA
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).

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Average humidity in September
Lagunitas, CA

Average humidity in September - Lagunitas, CA
  • Average humidity in September: 73%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Lagunitas, CA

Average rainfall in September - Lagunitas, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in September
Lagunitas, CA

Average rainfall days in September - Lagunitas, CA
  • Average rainfall days in September: 3.4 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.3 days).

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Average snowfall days in September
Lagunitas, CA

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Lagunitas, CA

Average sunshine days in September - Lagunitas, CA
  • Average sunshine days in September: 24.1 days

The months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).

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Average UV index in September
Lagunitas, CA

Average UV index in September - Lagunitas, CA
  • Average UV index in September: 5

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

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Average cloud cover in September
Lagunitas, CA

Average cloud cover in September - Lagunitas, CA
  • Average cloud cover in September: 19

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in September
Lagunitas, CA

Average visibility in September - Lagunitas, 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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Lagunitas, California, USA

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