September weather forecast and climate
Gonzales, CA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Gonzales, California, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 83.3°F (28.5°C).

Temperature

In Gonzales, California, the average high-temperature is almost the same as in August - a warm 83.3°F (28.5°C). In September, the average low-temperature is 53.4°F (11.9°C).

Heat index

In September, the average heat index is estimated at 85.5°F (29.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 56%.

Rainfall

In Gonzales, during 1.4 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Gonzales, during the entire year, the rain falls for 55.4 days and collects up to 7.4" (188mm) of precipitation.

Daylight

The average length of the day in Gonzales, California, is 12.4h.

Sunshine

In September, the average sunshine in Gonzales is 11.3h.

UV index

In Gonzales, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in September in Gonzales?

In Gonzales, California, in September, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 53.4°F (11.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that represents influence of the relative humidity to air temperaure, in September is estimated at 85.5°F (29.7°C).

What is the average humidity in September in Gonzales?

In September, the average relative humidity in Gonzales is 56%.

How much does it rain in Gonzales in September?

In September, in Gonzales, California, the rain falls for 1.4 days. Throughout September, 0.08" (2mm) of precipitation is accumulated.

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

In September, the average length of the day in Gonzales is 12.4h.

How many hours of sunshine does Gonzales have in September?

The average sunshine in September is 11.3h.

What is the UV index intensity in September in Gonzales?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in September
Gonzales, CA

Average temperature in September - Gonzales, CA
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is August (86.2°F).
The month with the lowest average high temperature is December (57.6°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is February (39.9°F).

[Resources]

Average pressure in September
Gonzales, CA

Average pressure in September - Gonzales, CA
  • Average pressure in September: 29.92"

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

[Resources]

Average wind speed in September
Gonzales, CA

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

The windiest months (with the highest average wind speed) are May and June (6mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).

[Resources]

Average humidity in September
Gonzales, CA

Average humidity in September - Gonzales, CA
  • Average humidity in September: 56%

The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (55%).

[Resources]

Average rainfall in September
Gonzales, CA

Average rainfall in September - Gonzales, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are June and August (0.04").

[Resources]

Average rainfall days in September
Gonzales, CA

Average rainfall days in September - Gonzales, CA
  • Average rainfall days in September: 1.4 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (0.7 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Gonzales, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 11.3h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

[Resources]

Average sunshine days in September
Gonzales, CA

Average sunshine days in September - Gonzales, CA
  • Average sunshine days in September: 27.7 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.4 days).

[Resources]

Average UV index in September
Gonzales, CA

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

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

[Resources]

Average cloud cover in September
Gonzales, CA

Average cloud cover in September - Gonzales, CA
  • Average cloud cover in September: 9

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 6).

[Resources]

Average visibility in September
Gonzales, CA

Average visibility in September - Gonzales, CA
  • Average visibility in September: 6mi

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

[Resources]