Hermosa Beach in Fall
In fall (September, October and November), Hermosa Beach sees average daytime highs around 69°F and overnight lows near 61°F, with 1.2 in of rain over about 5 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 72°F in early September to 63°F by late November. The sky is clear or mostly clear about 75% of the time across fall, and the air most often feels comfortable.
Fall is Hermosa Beach's 2nd-best season to visit on our travel score. For the whole year in context, see Hermosa Beach's year-round climate.
- Avg daytime high
- 69°F
- 2nd-warmest season
- Avg overnight low
- 61°F
- Rainfall
- 1.2 in
- 5 wet days
- Avg wind
- 6 mph
- Travel score
- 8.3
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Hermosa Beach in Fall
Over the season highs ease from about 72°F in early September to 63°F by late November.
A typical fall day in Hermosa Beach reaches about 69°F and drops to 61°F overnight. The warmest of the three months is September, the coolest November.
Hermosa Beach weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 61° / 53° | 2.7 | 5.5 | 10 | 5.8 |
| Feb | 61° / 53° | 2.9 | 5.8 | 10.7 | 5.6 |
| Mar | 61° / 54° | 1.7 | 4.3 | 11.7 | 6.0 |
| Apr | 62° / 56° | 0.6 | 2.2 | 12.8 | 6.9 |
| May | 64° / 58° | 0.2 | 1.1 | 13.7 | 7.6 |
| Jun | 67° / 61° | 0.0 | 0.2 | 14.2 | 8.2 |
| Jul | 70° / 64° | 0.1 | 0.3 | 14 | 8.7 |
| Aug | 71° / 65° | 0.0 | 0.1 | 13.3 | 9.1 |
| Sep | 71° / 64° | 0.1 | 0.4 | 12.2 | 8.9 |
| Oct | 69° / 62° | 0.5 | 1.6 | 11.1 | 8.4 |
| Nov | 65° / 57° | 0.7 | 2.6 | 10.2 | 7.6 |
| Dec | 61° / 53° | 1.9 | 4.6 | 9.8 | 6.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 75% of the time across fall.
Chance of precipitation in Fall
Hermosa Beach gets around 1.2 in of rain over 5 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early September to 9 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.8 kWh/m².
Is fall a good time to visit Hermosa Beach?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Hermosa Beach for general sightseeing.
What to pack for Hermosa Beach in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Hermosa Beach sees daytime highs around 69°F and nights near 61°F. Pack sun protection. About 5 days see rain.
Sea temperature near Hermosa Beach in Fall
The nearest coast averages about 66°F across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 68°F and coldest in February near 59°F.
It's comfortable for a long swim from Aug 4 to Sep 13 — about 1.3 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 59 | 59 | 59 | 62 | 65 | 67 | 68 | 68 | 66 | 63 | 60 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Bracing |
| Feb | 59 | Bracing |
| Mar | 59 | Bracing |
| Apr | 59 | Cool |
| May | 62 | Cool |
| Jun | 65 | Cool |
| Jul | 67 | Cool |
| Aug | 68 | Refreshing |
| Sep | 68 | Refreshing |
| Oct | 66 | Cool |
| Nov | 63 | Cool |
| Dec | 60 | Cool |
UV index in Hermosa Beach in Fall
Clear-sky midday UV across fall averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hermosa Beach peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 5 | 7 | 7 | 11 | 11 | 10 | 8 | 5 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | Very high |
| May | 7 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in Hermosa Beach in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Hermosa Beach is worst in November — around 37 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (May, 14 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 26 | 24 | 22 | 20 | 14 | 16 | 24 | 20 | 32 | 24 | 37 | 27 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 26 | Moderate |
| Feb | 24 | Moderate |
| Mar | 22 | Moderate |
| Apr | 20 | Moderate |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 24 | Moderate |
| Aug | 20 | Moderate |
| Sep | 32 | Moderate |
| Oct | 24 | Moderate |
| Nov | 37 | Poor |
| Dec | 27 | Moderate |
Where is Hermosa Beach?
Hermosa Beach sits at 33.9°N, 118.4°W, 26 ft above sea level, in United States. The nearest listed city is Redondo Beach, 1.2 mi away.
Topography around Hermosa Beach
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Hermosa Beach.
Within 2 miles, the terrain around Hermosa Beach has only modest variations in elevation — a maximum elevation change of 243 ft around an average of 66 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,483 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,327 ft.
The land around Hermosa Beach is covered by artificial surfaces (51%) and water (44%) within 2 miles, artificial surfaces (47%) and water (43%) within 10 miles, and water (47%) and artificial surfaces (21%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- 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 Hermosa Beach (33.8622°, -118.3995°, elevation 26 ft), 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.