Santa Cruz in Fall
In fall (September, October and November), Santa Cruz sees average daytime highs around 62°F and overnight lows near 55°F, with 3.9 in of rain over about 10 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 64°F in early September to 57°F by late November. The sky is clear or mostly clear about 69% of the time across fall, and the air most often feels dry.
Fall is Santa Cruz's 2nd-best season to visit on our travel score. Santa Cruz has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Santa Cruz's year-round climate.
- Avg daytime high
- 62°F
- warmest season of the year
- Avg overnight low
- 55°F
- Rainfall
- 3.9 in
- 10 wet days
- Avg wind
- 7 mph
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Santa Cruz in Fall
Over the season highs ease from about 64°F in early September to 57°F by late November.
A typical fall day in Santa Cruz reaches about 62°F and drops to 55°F overnight. The warmest of the three months is September, the coolest November.
Santa Cruz 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 | 56° / 49° | 5.7 | 9.6 | 9.8 | 3.8 |
| Feb | 56° / 49° | 5.6 | 9.4 | 10.6 | 3.8 |
| Mar | 56° / 50° | 3.9 | 9.1 | 11.7 | 4.1 |
| Apr | 57° / 51° | 1.8 | 5 | 12.9 | 4.7 |
| May | 58° / 52° | 0.8 | 3 | 13.9 | 5.4 |
| Jun | 60° / 54° | 0.2 | 0.9 | 14.5 | 6.5 |
| Jul | 62° / 56° | 0.0 | 0.1 | 14.3 | 7.2 |
| Aug | 63° / 57° | 0.0 | 0.1 | 13.4 | 7.8 |
| Sep | 64° / 58° | 0.1 | 0.6 | 12.3 | 7.9 |
| Oct | 63° / 56° | 1.2 | 2.9 | 11 | 7.1 |
| Nov | 59° / 52° | 2.6 | 6.1 | 10 | 5.2 |
| Dec | 56° / 49° | 5.3 | 9.6 | 9.5 | 3.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 69% of the time across fall.
Chance of precipitation in Fall
Santa Cruz gets around 3.9 in of rain over 10 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 7 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early September to 9 h 42 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 4.3 kWh/m².
Hazard calendar for Santa Cruz
In fall, Santa Cruz overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Santa Cruz's rainy season runs November–March, when most of the year's rain falls.
Is fall a good time to visit Santa Cruz?
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 a reasonable time to visit Santa Cruz for sightseeing.
What to pack for Santa Cruz in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Santa Cruz sees daytime highs around 62°F and nights near 55°F. Worth packing: a warm layer and sun protection. About 10 days see rain.
Sea temperature near Santa Cruz in Fall
The nearest coast averages about 58°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 September at about 58°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) | 55 | 55 | 55 | 54 | 54 | 55 | 57 | 58 | 58 | 58 | 57 | 55 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 55 | Bracing |
| Feb | 55 | Bracing |
| Mar | 55 | Bracing |
| Apr | 54 | Bracing |
| May | 54 | Bracing |
| Jun | 55 | Bracing |
| Jul | 57 | Bracing |
| Aug | 58 | Bracing |
| Sep | 58 | Bracing |
| Oct | 58 | Bracing |
| Nov | 57 | Bracing |
| Dec | 55 | Bracing |
UV index in Santa Cruz 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 Santa Cruz peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 7 | 8 | 10 | 10 | 10 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Very high | High | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 2 | Moderate |
| Dec | 2 | Moderate |
Air quality in Santa Cruz 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 Santa Cruz is worst in August — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 6 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) | 7 | 9 | 8 | 7 | 7 | 6 | 6 | 17 | 11 | 10 | 9 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 8 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 6 | Good |
| Aug | 17 | Moderate |
| Sep | 11 | Good |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 6 | Good |
Where is Santa Cruz?
Santa Cruz sits at 37.0°N, 122.0°W, 36 ft above sea level, in United States. The nearest listed city is Live Oak, 3.1 mi away.
Topography around Santa Cruz
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Santa Cruz.
Within 2 miles, the terrain around Santa Cruz has only modest variations in elevation — a maximum elevation change of 755 ft around an average of 131 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,520 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,820 ft.
The land around Santa Cruz is covered by artificial surfaces (44%) and trees (30%) within 2 miles, water (46%) and trees (42%) within 10 miles, and water (33%), trees (29%) 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 Santa Cruz (36.9741°, -122.0308°, elevation 36 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.