September is an ideal time to visit Los Angeles if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +88°F and about 19 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 5 mm of precipitation over an average of 2 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+88°F
Avg. max. temperature
+54°F
Min.
+111°F
Max.
5 mm
Total precipitation
65%
Avg. humidity
0 m/s
Avg. wind
19 ☀️
Sunny Days
8 ⛅️
Cloudy
2 🌦
Rainy
Our opinion: Los Angeles has great weather in September.
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Average temperature in Los Angeles in September
Here are the expected maximum, average and minimum temperatures in Los Angeles for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +91°F during the day to a minimum of +59°F during the night, the temperature in September averages around +79°F.
The average maximum temperature goes down 39% by the end of the month, compared with the beginning of the month, from +84°F to +72°F.
Is Los Angeles warm or cold in September?
Los Angeles is typically hot in September.
Maximum temperatures go down compared to the previous month from +91°F to +88°F. The minimum temperature also goes down from +68°F to +66°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
September is one of the warmest months in Los Angeles, here is the comparison with other months:
Water temperature in Los Angeles in September
Water in Los Angeles in September is Fresh. It varies from +63°F to +69°F, with an average of +66°F.The air temperature averaging +88°F is higher than the water temperature.
The water temperature in September is one of the warmest of the entire year:
The warmest water temperatures in Los Angeles are reached in August, when the average sea temperature rises to +67°F. The coldest water temperatures are in March, with an average of +58°F.
Can you swim in Los Angeles in September?
Water temperature (+66°F) in Los Angeles in September might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in Los Angeles in September
Los Angeles weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+91°F
+88°F
+82°F
Min. temperature
+59°F
+54°F
+46°F
Max. temperature
+109°F
+111°F
+108°F
Rainfall
4 mm
5 mm
15 mm
Wind
0 m/s
0 m/s
0 m/s
Avg. water temperature
+67°F
+66°F
+64°F
Humidity
65%
65%
63%
Air pressure
1011 HPa
1011 HPa
1013 HPa
Sunny days
22
19
17
Cloudy days
8
8
10
Rainy days
1
2
4
Snowy days
0
0
0
September weather is still as great as in August.It’s getting colder in September. From +91°F in the day, the average maximum temperature lowers to +88°F.Prepare for more rain. Average rainfall goes from 4 mm to 5 mm.Humidity levels don’t change as the month goes on, averaging around 65%.The average wind speed doesn’t change much during September, staying around 0 m/s.The days becoming less sunny, going from 22 sunny days in August to 19 in September.
October brings much the same weather, it remains great.
Wind speed in Los Angeles in September based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 1 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Los Angeles is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Los Angeles based on historical data.
Last Year
Historical Data
Typically, there is a 10% chance of rain on an average day in September, with total rainfall of approximately 13 mm. The maximum amount of rainfall per day is around 7 mm, which is considered light rain.Los Angeles is amazing in September with as little as 3 rainy days on average, so plan adventures in the great outdoors.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Los Angeles wettest month is February, where a typical day has a 31% chance of precipitation and 82 mm of rainfall per day. July, on the other hand, is the driest month with a mere 3% chance of precipitation and 1 mm of rainfall per day.
How was the weather last September in Los Angeles?
This is the weather in Los Angeles in September 2023:
1 September
☀️
+84°F
2 September
🌧️
+79°F
3 September
🌧️
+78°F
4 September
☀️
+78°F
5 September
☀️
+77°F
6 September
☁️
+81°F
7 September
☀️
+83°F
8 September
☀️
+92°F
9 September
☀️
+90°F
10 September
☀️
+92°F
11 September
☀️
+89°F
12 September
☀️
+83°F
13 September
☀️
+80°F
14 September
☀️
+78°F
15 September
☁️
+78°F
16 September
☁️
+75°F
17 September
☁️
+73°F
18 September
☁️
+78°F
19 September
☀️
+78°F
20 September
☁️
+75°F
21 September
☁️
+73°F
22 September
☀️
+74°F
23 September
☀️
+77°F
24 September
☀️
+79°F
25 September
☀️
+78°F
26 September
☀️
+82°F
27 September
☀️
+82°F
28 September
☀️
+77°F
29 September
☁️
+74°F
30 September
☁️
+71°F
In September 2023 Los Angeles had 19 sunny days, 9 cloudy days, and 2 rainy days. The average maximum temperature was +79°F, with an absolute maximum of +91°F and a minimum of +72°F. The average humidity was 72%, with a maximum of 100% and a minimum of 34%. The average wind speed was 1 m/s, with a maximum of 3 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Los Angeles climate has changed over the last 43 years.
The climate in Los Angeles in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2023 (+74°F) and the highest in 2015 (+81°F). The driest year was 2007 with only 120 mm of rainfall, and the wettest year was 2023 with 998 mm.
FAQ
Frequently asked questions about the weather in Los Angeles in September:
Is September a good time to visit Los Angeles?
Yes, September is a great time to go to Los Angeles, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Los Angeles.
Can you sunbathe in Los Angeles in September?
Absolutely, September is hot in Los Angeles. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Can you swim in Los Angeles in September?
In general, you can swim in Los Angeles in September, if you want to, at an average water temperature of +66°F. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is Los Angeles rainy in September?
Los Angeles is usually dry in September. Plan your packing around outdoor activities and exploring.
Is it sunny in Los Angeles in September?
The amount of sunny days in Los Angeles during September varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Los Angeles, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
