September weather forecast
Harbor City, CA

Share

Weather in September

September, the first month of the autumn in Harbor City, is still a warm month, with an average temperature varying between 75.9°F (24.4°C) and 64.2°F (17.9°C).

Temperature

The warmest months are August and September, with an average high-temperature of 75.9°F (24.4°C).

Humidity

In Harbor City, California, the average relative humidity in September is 68%.

Rainfall

In Harbor City, California, during September, the rain falls for 3.9 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 57.9 rainfall days, and 6.65" (169mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September in Harbor City, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm PDT.

Sunshine

In September, the average sunshine in Harbor City is 10.5h.

UV index

The months with the highest UV index in Harbor City are July through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
[Resources]

Frequently asked questions

What is the warmest month in Harbor City?

Harbor City's temperatures tend to hit their maximum during August and September, with an average high-temperature of 75.9°F (24.4°C).

What is the temperature in September in Harbor City?

The high-temperature, in September, in Harbor City, is 75.9°F (24.4°C), while the low-temperature averages to 64.2°F (17.9°C).

What is the average humidity in September in Harbor City?

In September, the average relative humidity in Harbor City is 68%.

How many days does it rain in September in Harbor City?

In Harbor City, during September, the rain falls for 3.9 days and regularly aggregates up to 0.24" (6mm) of precipitation.

How many hours of daylight does Harbor City have in September?

The average day length in September in Harbor City is 12h and 22min.

When are sunrise and sunset in September in Harbor City?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm PDT.

How long on average sun shines in September in Harbor City?

The average sunshine duration in September in Harbor City is 10.5h.

What is the month with the highest UV index in Harbor City?

July through September, with an average maximum UV index of 6, are months with the highest UV index in Harbor City.

What is the UV index intensity in September in Harbor City?

The average daily maximum UV index in September in Harbor City, California, is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Harbor City, CA

Average temperature in September - Harbor City, CA
  • Average high temperature in September: 75.9°F

The warmest months (with the highest average high temperature) are August and September (75.9°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).

[Resources]

Average pressure in September
Harbor City, CA

Average pressure in September - Harbor City, CA
  • Average pressure in September: 29.9"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).

[Resources]

Average wind speed in September
Harbor City, CA

Average wind speed in September - Harbor City, CA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

[Resources]

Average humidity in September
Harbor City, CA

Average humidity in September - Harbor City, CA
  • Average humidity in September: 68%

The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (58%).

[Resources]

Average rainfall in September
Harbor City, CA

Average rainfall in September - Harbor City, CA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is January (1.3").
The driest month (with the least rainfall) is June (0.12").

[Resources]

Average rainfall days in September
Harbor City, CA

Average rainfall days in September - Harbor City, CA
  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (3 days).

[Resources]

Average daylight in September /
Average sunshine in September
Harbor City, CA

Average daylight in September / Average sunshine in September - Harbor City, 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: 10h and 0min).

  • Average sunshine in September: 10h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

[Resources]

Average sunshine days in September
Harbor City, CA

Average sunshine days in September - Harbor City, CA
  • Average sunshine days in September: 21.4 days

The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is June (17.7 days).

[Resources]

Average UV index in September
Harbor City, CA

Average UV index in September - Harbor City, CA
  • Average UV index in September: 6

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

[Resources]

Average cloud cover in September
Harbor City, CA

Average cloud cover in September - Harbor City, CA
  • Average cloud cover in September: 12

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).

[Resources]

Average visibility in September
Harbor City, CA

Average visibility in September - Harbor City, 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).

[Resources]

Harbor City, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location