Monterey in Fall
In fall (September, October and November), Monterey sees average daytime highs around 59°F and overnight lows near 56°F, with 3.0 in of rain over about 9 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across fall, daytime highs hold fairly steady around 59°F. The sky is clear or mostly clear about 62% of the time across fall, and the air most often feels dry.
Fall is Monterey's best season of the year to visit on our travel score. Monterey 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 Monterey's year-round climate.
- Avg daytime high
- 59°F
- warmest season of the year
- Avg overnight low
- 56°F
- Rainfall
- 3.0 in
- 9 wet days
- Avg wind
- 8 mph
- Travel score
- 5.6
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Monterey in Fall
Across fall, daytime highs hold fairly steady around 59°F.
A typical fall day in Monterey reaches about 59°F and drops to 56°F overnight. The warmest of the three months is September, the coolest November.
Monterey 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 | 55° / 51° | 4.5 | 10 | 9.8 | 3.6 |
| Feb | 54° / 51° | 4.5 | 9.9 | 10.6 | 3.3 |
| Mar | 54° / 51° | 3.3 | 9.2 | 11.7 | 3.4 |
| Apr | 54° / 51° | 1.5 | 5.8 | 12.9 | 3.6 |
| May | 54° / 52° | 0.6 | 3.3 | 13.9 | 4.0 |
| Jun | 55° / 53° | 0.2 | 1.3 | 14.5 | 4.6 |
| Jul | 57° / 55° | 0.0 | 0.1 | 14.2 | 5.2 |
| Aug | 59° / 56° | 0.1 | 0.3 | 13.4 | 5.8 |
| Sep | 60° / 57° | 0.1 | 0.7 | 12.2 | 6.2 |
| Oct | 60° / 56° | 0.9 | 2.7 | 11.1 | 6.0 |
| Nov | 57° / 54° | 2.1 | 5.8 | 10 | 4.7 |
| Dec | 55° / 52° | 4.0 | 9.6 | 9.5 | 3.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 62% of the time across fall.
Chance of precipitation in Fall
Monterey gets around 3.0 in of rain over 9 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 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 4.5 kWh/m².
Hazard calendar for Monterey
In fall, Monterey overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Monterey's rainy season runs November–March, when most of the year's rain falls.
Is fall a good time to visit Monterey?
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 Monterey for sightseeing.
What to pack for Monterey in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Monterey sees daytime highs around 59°F and nights near 56°F. Worth packing: a warm layer and sun protection. About 9 days see rain.
Sea temperature near Monterey 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 offshore 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 Monterey 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 Monterey 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 Monterey 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 Monterey 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 Monterey?
Monterey sits at 36.6°N, 121.9°W, 26 ft above sea level, in United States. The nearest listed city is Pacific Grove, 1.9 mi away.
Topography around Monterey
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Monterey.
Within 2 miles, the terrain around Monterey has significant variations in elevation — a maximum elevation change of 843 ft around an average of 197 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,805 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,883 ft.
The land around Monterey is covered by trees (37%), artificial surfaces (31%) and water (27%) within 2 miles, water (51%) and trees (28%) within 10 miles, and water (35%), 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 Monterey (36.6002°, -121.8947°, 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.