September weather forecast
La Habra, CA

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Weather in September

September, the first month of the autumn in La Habra, is still a warm month, with an average temperature fluctuating between 64.9°F (18.3°C) and 84.2°F (29°C).

Temperature

La Habra commences September with an average high-temperature of a moderately hot 84.2°F (29°C), maintaining a close resemblance to the previous month. La Habra records an average temperature drop to a comfortable 64.9°F (18.3°C) in September.

Heat index

The heat index in September is evaluated at a hot 86°F (30°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The average relative humidity in September in La Habra is 54%.

Rainfall

In La Habra, during September, the rain falls for 2.6 days and regularly aggregates up to 0.12" (3mm) of precipitation. In La Habra, during the entire year, the rain falls for 45.6 days and collects up to 6.5" (165mm) of precipitation.

Daylight

In La Habra, California, the average length of the day in September is 12h and 22min.
On the first day of September in La Habra, sunrise is at 6:26 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm PDT.

Sunshine

In La Habra, the average sunshine in September is 10.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during September leads to these advisories:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

Is it hot in La Habra during September?

In La Habra, in September, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is evaluated at 86°F (30°C).

What is the average humidity in September in La Habra?

In La Habra, the average relative humidity in September is 54%.

How much does it rain in La Habra in September?

In La Habra, California, in September, during 2.6 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

What is the average length of the day in September in La Habra?

In La Habra, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September in La Habra?

On the first day of September in La Habra, California, sunrise is at 6:26 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm PDT.

How many hours of sunshine does La Habra have in September?

In La Habra, California, the average sunshine duration in September is 10.6h.

What is the UV index intensity in September in La Habra?

The average daily maximum UV index in September in La Habra is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
La Habra, CA

Average temperature in September - La Habra, CA
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is August (86°F).
The month with the lowest average high temperature is December (64.6°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).

Average pressure in September
La Habra, CA

Average pressure in September - La Habra, CA
  • Average pressure in September: 29.89"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
La Habra, CA

Average wind speed in September - La Habra, CA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

Average humidity in September
La Habra, CA

Average humidity in September - La Habra, CA
  • Average humidity in September: 54%

The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (49%).

Average rainfall in September
La Habra, CA

Average rainfall in September - La Habra, CA
  • Average rainfall in September: 0.12"

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

Average rainfall days in September
La Habra, CA

Average rainfall days in September - La Habra, CA
  • Average rainfall days in September: 2.6 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).

Average daylight in September /
Average sunshine in September
La Habra, CA

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in September
La Habra, CA

Average sunshine days in September - La Habra, CA
  • Average sunshine days in September: 24.6 days

The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (22.1 days).

Average UV index in September
La Habra, CA

Average UV index in September - La Habra, CA
  • Average UV index in September: 6

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).

Average cloud cover in September
La Habra, CA

Average cloud cover in September - La Habra, CA
  • Average cloud cover in September: 8

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in September
La Habra, CA

Average visibility in September - La Habra, 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).

La Habra, California, USA

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