September weather forecast
Los Gatos, CA

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Weather in September

September, the first month of the autumn in Los Gatos, is still a warm month, with an average temperature ranging between min 55.6°F (13.1°C) and max 78.4°F (25.8°C).

Temperature

The transition into September reveals an average high-temperature of a still moderately hot 78.4°F (25.8°C), mirroring a close resemblance to August. During September, Los Gatos detects a significant contrast from its daytime temperatures, with nights averaging at a refreshing 55.6°F (13.1°C).

Humidity

The months with the lowest humidity in Los Gatos, California, are July and September, with an average relative humidity of 62%.

Rainfall

In September, the rain falls for 2.5 days. Throughout September, 0.12" (3mm) of precipitation is accumulated. In Los Gatos, during the entire year, the rain falls for 68.6 days and collects up to 11.57" (294mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of September, in Los Gatos, sunrise is at 7:03 am and sunset at 6:51 pm PDT.

Sunshine

The average sunshine in September in Los Gatos is 11.1h.

UV index

In Los Gatos, California, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What is the usual temperature for Los Gatos in September?

September temperatures in Los Gatos, California, vary between a high-temperature of 78.4°F (25.8°C) and a low-temperature of 55.6°F (13.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in July is computed to be 82.4°F (28°C).

What are the least humid months in Los Gatos?

July and September, with an average relative humidity of 62%, are the least humid months in Los Gatos.

What is the average humidity in September in Los Gatos?

In Los Gatos, California, the average relative humidity in September is 62%.

How much does it rain in Los Gatos in September?

In Los Gatos, California, in September, during 2.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

What is the average length of the day in September in Los Gatos?

In Los Gatos, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Los Gatos?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm PDT.

How many hours of sunshine does Los Gatos have in September?

The average sunshine duration in September in Los Gatos is 11.1h.

What is the UV index reading in September in Los Gatos?

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

Average temperature in September
Los Gatos, CA

Average temperature in September - Los Gatos, CA
  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in September: 55.6°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

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Average pressure in September
Los Gatos, CA

Average pressure in September - Los Gatos, 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 and September (29.92"Hg).

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Average wind speed in September
Los Gatos, CA

Average wind speed in September - Los Gatos, CA
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).

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Average humidity in September
Los Gatos, CA

Average humidity in September - Los Gatos, CA
  • Average humidity in September: 62%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (62%).

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Average rainfall in September
Los Gatos, CA

Average rainfall in September - Los Gatos, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Los Gatos, CA

Average rainfall days in September - Los Gatos, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in September /
Average sunshine in September
Los Gatos, CA

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in September
Los Gatos, CA

Average sunshine days in September - Los Gatos, CA
  • Average sunshine days in September: 26.4 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in September
Los Gatos, CA

Average UV index in September - Los Gatos, CA
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Los Gatos, CA

Average cloud cover in September - Los Gatos, CA
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in September
Los Gatos, CA

Average visibility in September - Los Gatos, 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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Los Gatos, California, USA

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