Los Angeles weather in September

In September, Los Angeles sees average daytime highs of 28°C and overnight lows near 15°C, with 22 mm of rain across 3.7 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 25°C by the end. The sky is clear or mostly clear about 57% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Los Angeles's 4th-clearest and 11th-windiest month. For the whole year in context, see Los Angeles's year-round climate.

Daytime high: 28°; 4th warmest
Overnight low: 15°; 9th coldest
Rainfall: 22 mm; 3.7 wet days
Daylight: 12 h 18 min; 7:01 AM – 7:17 PM
Cloud cover: 38%; 4th clearest
Wind: 8 km/h; 11th windiest
Solar energy: 5.32 kWh/m²
Travel score: 7.2; out of 10

← August Los Angeles year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 25°C by the end.

A typical September day in Los Angeles reaches about 28°C in the afternoon and slips back to 15°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°C. Set against its neighbours, September runs about 5°C cooler than August and about 7°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	31	31	31	30	30	30	30	30	29	29	29	29	28	28	28	28	27	27	27	27	26	26	26	26	25	25	25	25	25	25
Avg low (°C)	18	17	17	17	17	17	17	17	16	16	16	16	16	15	15	15	15	15	15	14	14	14	14	14	14	13	13	13	13	13

	Avg high (°C)	Avg low (°C)
1	31	18
2	31	17
3	31	17
4	30	17
5	30	17
6	30	17
7	30	17
8	30	17
9	29	16
10	29	16
11	29	16
12	29	16
13	28	16
14	28	15
15	28	15
16	28	15
17	27	15
18	27	15
19	27	15
20	27	14
21	26	14
22	26	14
23	26	14
24	26	14
25	25	14
26	25	13
27	25	13
28	25	13
29	25	13
30	25	13

How September really feels in Los Angeles

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Los Angeles weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	11° / 2°	37	6.8	0.4	9.5	2.8
Feb	13° / 3°	33	5.7	0.5	10.4	4.0
Mar	17° / 5°	39	6.8	0.2	11.7	5.9
Apr	19° / 8°	46	7.5	0	13	6.6
May	24° / 12°	41	7.3	0	14.2	7.4
Jun	30° / 17°	18	3.6	0	14.8	6.3
Jul	34° / 19°	7	1.4	0	14.6	4.1
Aug	33° / 19°	10	2.4	0	13.6	4.4
Sep	28° / 15°	22	3.7	0	12.3	7.2
Oct	21° / 11°	57	7.5	0	10.9	7.0
Nov	15° / 6°	52	7.4	0	9.8	4.6
Dec	11° / 3°	45	7.1	0.3	9.2	2.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	85	85	85	84	83	83	82	81	80	80	78	77	76	76	74	73	72	71	71	69	69	68	68	68	68	68	68	68	67	67
Cloudier (%)	15	15	15	16	17	17	18	19	20	20	22	23	24	24	26	27	28	29	29	31	31	32	32	32	32	32	32	32	33	33

	Clearer (%)	Cloudier (%)
1	85	15
2	85	15
3	85	15
4	84	16
5	83	17
6	83	17
7	82	18
8	81	19
9	80	20
10	80	20
11	78	22
12	77	23
13	76	24
14	76	24
15	74	26
16	73	27
17	72	28
18	71	29
19	71	29
20	69	31
21	69	31
22	68	32
23	68	32
24	68	32
25	68	32
26	68	32
27	68	32
28	68	32
29	67	33
30	67	33

Chance of precipitation in September

Any precipitation

Los Angeles gets around 22 mm of rain over 3.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 16% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	8	8	8	7	7	7	8	8	8	9	10	10	11	12	13	13	14	15	15	16	16	16	16	16	16	16	16	16	15	15

	Rain chance (%)
1	8
2	8
3	8
4	7
5	7
6	7
7	8
8	8
9	8
10	9
11	10
12	10
13	11
14	12
15	13
16	13
17	14
18	15
19	15
20	16
21	16
22	16
23	16
24	16
25	16
26	16
27	16
28	16
29	15
30	15

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	87	87	87	87	87	88	88	88	87	87	87	87	86	86	85	86	85	85	85	84	84	84	83	83	83	84	84	85	85	85
Comfortable (%)	11	11	11	11	11	10	10	10	11	11	11	11	12	12	13	13	14	14	14	15	15	15	16	16	16	15	15	14	14	14
Humid (%)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	87	11	2
2	87	11	2
3	87	11	2
4	87	11	2
5	87	11	2
6	88	10	2
7	88	10	2
8	88	10	2
9	87	11	2
10	87	11	2
11	87	11	2
12	87	11	2
13	86	12	2
14	86	12	2
15	85	13	2
16	86	13	1
17	85	14	1
18	85	14	1
19	85	14	1
20	84	15	1
21	84	15	1
22	84	15	1
23	83	16	1
24	83	16	1
25	83	16	1
26	84	15	1
27	84	15	1
28	85	14	1
29	85	14	1
30	85	14	1

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	9	9	9	9	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	9	calm
2	9	calm
3	9	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	9	calm
11	9	calm
12	9	calm
13	8	calm
14	8	calm
15	8	calm
16	8	calm
17	8	calm
18	8	calm
19	8	calm
20	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	8	calm
30	8	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:46 AM to 7:15 AM, and sunset from 7:43 PM to 6:53 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.9	12.9	12.8	12.8	12.8	12.7	12.7	12.6	12.6	12.5	12.5	12.4	12.4	12.4	12.3	12.3	12.2	12.2	12.1	12.1	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.7	11.7	11.6
Sunrise (AM)	6:46	6:47	6:48	6:49	6:50	6:51	6:52	6:53	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:12	7:13	7:14	7:15
Sunset (PM)	7:43	7:41	7:39	7:38	7:36	7:34	7:33	7:31	7:29	7:27	7:26	7:24	7:22	7:20	7:19	7:17	7:15	7:14	7:12	7:10	7:08	7:07	7:05	7:03	7:01	7:00	6:58	6:56	6:55	6:53

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.9	6:46	7:43
2	12.9	6:47	7:41
3	12.8	6:48	7:39
4	12.8	6:49	7:38
5	12.8	6:50	7:36
6	12.7	6:51	7:34
7	12.7	6:52	7:33
8	12.6	6:53	7:31
9	12.6	6:54	7:29
10	12.5	6:55	7:27
11	12.5	6:56	7:26
12	12.4	6:57	7:24
13	12.4	6:58	7:22
14	12.4	6:59	7:20
15	12.3	7:00	7:19
16	12.3	7:01	7:17
17	12.2	7:02	7:15
18	12.2	7:03	7:14
19	12.1	7:04	7:12
20	12.1	7:05	7:10
21	12.0	7:06	7:08
22	12.0	7:07	7:07
23	11.9	7:08	7:05
24	11.9	7:09	7:03
25	11.9	7:10	7:01
26	11.8	7:11	7:00
27	11.8	7:12	6:58
28	11.7	7:13	6:56
29	11.7	7:14	6:55
30	11.6	7:15	6:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.32 kWh/m².

For context, solar energy here swings from a low near 1.86 kWh/m² to a high of 7.85 kWh/m² in July across the year — September's 5.32 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	6.2	6.2	6.1	6.0	6.0	5.9	5.9	5.8	5.8	5.7	5.6	5.5	5.5	5.4	5.3	5.3	5.2	5.2	5.1	5.0	5.0	4.9	4.9	4.8	4.8	4.7	4.7	4.6	4.5	4.5
Level	Intense	Intense	Intense	Intense	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.2	Intense
2	6.2	Intense
3	6.1	Intense
4	6.0	Intense
5	6.0	Bright
6	5.9	Bright
7	5.9	Bright
8	5.8	Bright
9	5.8	Bright
10	5.7	Bright
11	5.6	Bright
12	5.5	Bright
13	5.5	Bright
14	5.4	Bright
15	5.3	Bright
16	5.3	Bright
17	5.2	Bright
18	5.2	Bright
19	5.1	Bright
20	5.0	Bright
21	5.0	Bright
22	4.9	Bright
23	4.9	Bright
24	4.8	Bright
25	4.8	Bright
26	4.7	Bright
27	4.7	Bright
28	4.6	Bright
29	4.5	Bright
30	4.5	Bright

Planning a trip in September

Is September a good time to visit Los Angeles?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2

Sightseeing

2nd-best month of the year

7.9

Beach & pool

2nd-best month of the year

September is one of the better times to visit Los Angeles for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Los Angeles in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Los Angeles sees daytime highs around 28°C and nights near 15°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Los Angeles in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Los Angeles peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	2	6	7	7	9	10	9	6	4	2	2
Level	Moderate	Moderate	High	High	High	Very high	Very high	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Moderate
Feb	2	Moderate
Mar	6	High
Apr	7	High
May	7	High
Jun	9	Very high
Jul	10	Very high
Aug	9	Very high
Sep	6	High
Oct	4	Moderate
Nov	2	Moderate
Dec	2	Low

Location & terrain

Where is Los Angeles?

Los Angeles sits at 40.4°N, 3.7°W, 604 m above sea level, in Spain. The nearest listed city is Villaverde, 1.0 km away.

Topography around Los Angeles

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Los Angeles.

Within 3 km, the terrain around Los Angeles has only modest variations in elevation — a maximum elevation change of 80 m around an average of 595 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 266 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,009 m.

The land around Los Angeles is covered by artificial surfaces (62%) within 3 km, artificial surfaces (42%) and grassland (24%) within 16 km, and cropland (39%), grassland (34%) and trees (20%) within 80 km.

3 km

80 m

artificial surfaces 62%

16 km

266 m

artificial surfaces 42%

80 km

2,009 m

cropland 39%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← August Los Angeles year-round climate October →Best places to visit in September

September weather nearby: Villaverde 1.0 km · Los Rosales 1.0 km · Orcasitas 2.0 km · San Fermín 2.0 km · San Cristobal 2.0 km · Pradolongo 3.0 km · Butarque 3.0 km · Almendrales 3.0 km

Spain travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 65% of US; price level, 2025
GDP per capita: $38,627; 2025
Happiness: 6.5 / 10; World Happiness, 2025
Safe drinking water: 99%; of population, 2024
Homicide rate: 0.7; per 100k, 2023
Road deaths: 3.9; per 100k/yr, 2019
Income group: High; World Bank
English: Moderate; EF EPI 540
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Los Angeles (40.3558°, -3.6991°, elevation 604 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	31	18
2	31	17
3	31	17
4	30	17
5	30	17
6	30	17
7	30	17
8	30	17
9	29	16
10	29	16
11	29	16
12	29	16
13	28	16
14	28	15
15	28	15
16	28	15
17	27	15
18	27	15
19	27	15
20	27	14
21	26	14
22	26	14
23	26	14
24	26	14
25	25	14
26	25	13
27	25	13
28	25	13
29	25	13
30	25	13

	Clearer (%)	Cloudier (%)
1	85	15
2	85	15
3	85	15
4	84	16
5	83	17
6	83	17
7	82	18
8	81	19
9	80	20
10	80	20
11	78	22
12	77	23
13	76	24
14	76	24
15	74	26
16	73	27
17	72	28
18	71	29
19	71	29
20	69	31
21	69	31
22	68	32
23	68	32
24	68	32
25	68	32
26	68	32
27	68	32
28	68	32
29	67	33
30	67	33

	Rain chance (%)
1	8
2	8
3	8
4	7
5	7
6	7
7	8
8	8
9	8
10	9
11	10
12	10
13	11
14	12
15	13
16	13
17	14
18	15
19	15
20	16
21	16
22	16
23	16
24	16
25	16
26	16
27	16
28	16
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	87	11	2
2	87	11	2
3	87	11	2
4	87	11	2
5	87	11	2
6	88	10	2
7	88	10	2
8	88	10	2
9	87	11	2
10	87	11	2
11	87	11	2
12	87	11	2
13	86	12	2
14	86	12	2
15	85	13	2
16	86	13	1
17	85	14	1
18	85	14	1
19	85	14	1
20	84	15	1
21	84	15	1
22	84	15	1
23	83	16	1
24	83	16	1
25	83	16	1
26	84	15	1
27	84	15	1
28	85	14	1
29	85	14	1
30	85	14	1

	Avg high (°C)	Avg low (°C)
1	31	18
2	31	17
3	31	17
4	30	17
5	30	17
6	30	17
7	30	17
8	30	17
9	29	16
10	29	16
11	29	16
12	29	16
13	28	16
14	28	15
15	28	15
16	28	15
17	27	15
18	27	15
19	27	15
20	27	14
21	26	14
22	26	14
23	26	14
24	26	14
25	25	14
26	25	13
27	25	13
28	25	13
29	25	13
30	25	13

	Clearer (%)	Cloudier (%)
1	85	15
2	85	15
3	85	15
4	84	16
5	83	17
6	83	17
7	82	18
8	81	19
9	80	20
10	80	20
11	78	22
12	77	23
13	76	24
14	76	24
15	74	26
16	73	27
17	72	28
18	71	29
19	71	29
20	69	31
21	69	31
22	68	32
23	68	32
24	68	32
25	68	32
26	68	32
27	68	32
28	68	32
29	67	33
30	67	33

	Rain chance (%)
1	8
2	8
3	8
4	7
5	7
6	7
7	8
8	8
9	8
10	9
11	10
12	10
13	11
14	12
15	13
16	13
17	14
18	15
19	15
20	16
21	16
22	16
23	16
24	16
25	16
26	16
27	16
28	16
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	87	11	2
2	87	11	2
3	87	11	2
4	87	11	2
5	87	11	2
6	88	10	2
7	88	10	2
8	88	10	2
9	87	11	2
10	87	11	2
11	87	11	2
12	87	11	2
13	86	12	2
14	86	12	2
15	85	13	2
16	86	13	1
17	85	14	1
18	85	14	1
19	85	14	1
20	84	15	1
21	84	15	1
22	84	15	1
23	83	16	1
24	83	16	1
25	83	16	1
26	84	15	1
27	84	15	1
28	85	14	1
29	85	14	1
30	85	14	1

	Avg high (°C)	Avg low (°C)
1	31	18
2	31	17
3	31	17
4	30	17
5	30	17
6	30	17
7	30	17
8	30	17
9	29	16
10	29	16
11	29	16
12	29	16
13	28	16
14	28	15
15	28	15
16	28	15
17	27	15
18	27	15
19	27	15
20	27	14
21	26	14
22	26	14
23	26	14
24	26	14
25	25	14
26	25	13
27	25	13
28	25	13
29	25	13
30	25	13

	Clearer (%)	Cloudier (%)
1	85	15
2	85	15
3	85	15
4	84	16
5	83	17
6	83	17
7	82	18
8	81	19
9	80	20
10	80	20
11	78	22
12	77	23
13	76	24
14	76	24
15	74	26
16	73	27
17	72	28
18	71	29
19	71	29
20	69	31
21	69	31
22	68	32
23	68	32
24	68	32
25	68	32
26	68	32
27	68	32
28	68	32
29	67	33
30	67	33

	Rain chance (%)
1	8
2	8
3	8
4	7
5	7
6	7
7	8
8	8
9	8
10	9
11	10
12	10
13	11
14	12
15	13
16	13
17	14
18	15
19	15
20	16
21	16
22	16
23	16
24	16
25	16
26	16
27	16
28	16
29	15
30	15

	Dry (%)	Comfortable (%)	Humid (%)
1	87	11	2
2	87	11	2
3	87	11	2
4	87	11	2
5	87	11	2
6	88	10	2
7	88	10	2
8	88	10	2
9	87	11	2
10	87	11	2
11	87	11	2
12	87	11	2
13	86	12	2
14	86	12	2
15	85	13	2
16	86	13	1
17	85	14	1
18	85	14	1
19	85	14	1
20	84	15	1
21	84	15	1
22	84	15	1
23	83	16	1
24	83	16	1
25	83	16	1
26	84	15	1
27	84	15	1
28	85	14	1
29	85	14	1
30	85	14	1