September weather forecast and climate
Maywood, CA

Weather in September

September, the first month of the autumn, in Maywood, is still a warm month, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 64.4°F (18°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still moderately hot 83.3°F (28.5°C). In September, in Maywood, the average low-temperature is 64.4°F (18°C).

Heat index

In September, the average heat index is calculated to 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 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, clothing, pregnancy). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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 Maywood, California, is 56%.

Rainfall

In September, the rain falls for 2.5 days. Throughout September, 0.16" (4mm) of precipitation is accumulated. Throughout the year, in Maywood, California, there are 43.4 rainfall days, and 6.73" (171mm) of precipitation is accumulated.

Daylight

The average length of the day is 12.4h.

Sunshine

In September, the average sunshine in Maywood is 10.6h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Maywood?

In September, in Maywood, California, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'feels like', 'real feel'), that represents influence of the relative humidity to air temperaure, in September is evaluated at 85.5°F (29.7°C).

What is the average humidity in September in Maywood?

The average relative humidity in September in Maywood, California, is 56%.

How many days does it rain in September in Maywood?

In Maywood, in September, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

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

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

How long on average sun shines in September in Maywood?

In September, the average sunshine is 10.6h.

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

Months with the highest UV index are June through September, with an average maximum UV index of 6.

What is the UV index intensity in September in Maywood?

In Maywood, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.

Average temperature in September
Maywood, CA

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

The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is December (64.6°F).

  • Average low temperature in September: 64.4°F

The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).

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Average pressure in September
Maywood, CA

Average pressure in September - Maywood, CA
  • Average pressure in September: 29.89"

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are June and September (29.89").

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Average wind speed in September
Maywood, CA

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

The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

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Average humidity in September
Maywood, CA

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

The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (50%).

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Average rainfall in September
Maywood, CA

Average rainfall in September - Maywood, CA
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
Maywood, CA

Average rainfall days in September - Maywood, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (6.4 days).
The month with the least rainy days is June (1 days).

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

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

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 10.6h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in September
Maywood, CA

Average sunshine days in September - Maywood, CA
  • Average sunshine days in September: 24.8 days

The month with the most sunshine days is August (27.2 days).
The month with the least sunshine days is February (22.1 days).

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Average UV index in September
Maywood, CA

Average UV index in September - Maywood, CA
  • Average UV index in September: 6

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in September
Maywood, CA

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

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in September
Maywood, CA

Average visibility in September - Maywood, 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).

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