Lompoc in Fall
In fall (September, October and November), Lompoc sees average daytime highs around 66°F and overnight lows near 56°F, with 1.9 in of rain over about 5 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs ease from about 68°F in early September to 62°F by late November. The sky is clear or mostly clear about 72% of the time across fall, and the air most often feels dry.
Fall is Lompoc's 2nd-best season to visit on our travel score. For the whole year in context, see Lompoc's year-round climate.
- Avg daytime high
- 66°F
- warmest season of the year
- Avg overnight low
- 56°F
- Rainfall
- 1.9 in
- 5 wet days
- Avg wind
- 8 mph
- Travel score
- 7.9
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Lompoc in Fall
Over the season highs ease from about 68°F in early September to 62°F by late November.
A typical fall day in Lompoc reaches about 66°F and drops to 56°F overnight. The warmest of the three months is September, the coolest November.
Lompoc 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 | 60° / 49° | 3.5 | 7 | 9.9 | 5.2 |
| Feb | 59° / 50° | 3.4 | 7.5 | 10.7 | 5.0 |
| Mar | 60° / 51° | 2.6 | 6.1 | 11.7 | 5.4 |
| Apr | 60° / 51° | 0.9 | 2.9 | 12.8 | 6.1 |
| May | 62° / 53° | 0.4 | 1.4 | 13.8 | 6.8 |
| Jun | 64° / 55° | 0.1 | 0.3 | 14.3 | 7.8 |
| Jul | 67° / 57° | 0.0 | 0.2 | 14.1 | 8.2 |
| Aug | 68° / 58° | 0.0 | 0.1 | 13.3 | 8.5 |
| Sep | 68° / 58° | 0.0 | 0.3 | 12.2 | 8.5 |
| Oct | 67° / 57° | 0.6 | 1.8 | 11.1 | 8.1 |
| Nov | 64° / 53° | 1.2 | 3.3 | 10.2 | 7.0 |
| Dec | 60° / 49° | 2.6 | 6 | 9.7 | 5.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 72% of the time across fall.
Chance of precipitation in Fall
Lompoc gets around 1.9 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 dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 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 Lompoc?
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 Lompoc for general sightseeing.
What to pack for Lompoc in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Lompoc sees daytime highs around 66°F and nights near 56°F. Pack sun protection. About 5 days see rain.
Sea temperature near Lompoc in Fall
The nearest coast averages about 60°F across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 9 mi away) is warmest in October at about 60°F and coldest in April near 54°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 56 | 56 | 55 | 54 | 55 | 56 | 58 | 59 | 60 | 60 | 59 | 57 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 56 | Bracing |
| Feb | 56 | Bracing |
| Mar | 55 | Bracing |
| Apr | 54 | Bracing |
| May | 55 | Bracing |
| Jun | 56 | Bracing |
| Jul | 58 | Bracing |
| Aug | 59 | Cool |
| Sep | 60 | Cool |
| Oct | 60 | Cool |
| Nov | 59 | Cool |
| Dec | 57 | Bracing |
UV index in Lompoc in Fall
Clear-sky midday UV across fall averages 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 Lompoc peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 | 4 | 5 | 7 | 8 | 11 | 10 | 10 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in Lompoc 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 Lompoc is worst in September — around 21 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (June, 4 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) | 5 | 5 | 6 | 5 | 5 | 4 | 6 | 9 | 21 | 5 | 5 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 5 | Good |
| Feb | 5 | Good |
| Mar | 6 | Good |
| Apr | 5 | Good |
| May | 5 | Good |
| Jun | 4 | Good |
| Jul | 6 | Good |
| Aug | 9 | Good |
| Sep | 21 | Moderate |
| Oct | 5 | Good |
| Nov | 5 | Good |
| Dec | 6 | Good |
Where is Lompoc?
Lompoc sits at 34.6°N, 120.5°W, 105 ft above sea level, in United States. The nearest listed city is Orcutt, 16 mi away.
Topography around Lompoc
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lompoc.
Within 2 miles, the terrain around Lompoc has significant variations in elevation — a maximum elevation change of 902 ft around an average of 226 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,100 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,788 ft.
The land around Lompoc is covered by artificial surfaces (38%) and grassland (31%) within 2 miles, grassland (46%) and trees (31%) within 10 miles, and water (47%) and grassland (25%) 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 Lompoc (34.6392°, -120.4579°, elevation 105 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.