Pasadena in Fall
In fall (September, October and November), Pasadena sees average daytime highs around 80°F and overnight lows near 62°F, with 12.8 in of rain over about 29 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 90°F in early September to 68°F by late November. The sky is clear or mostly clear about 44% of the time across fall, and the air most often feels dry.
Fall is Pasadena's 2nd-best season to visit on our travel score. For the whole year in context, see Pasadena's year-round climate.
- Avg daytime high
- 80°F
- 2nd-warmest season
- Avg overnight low
- 62°F
- Rainfall
- 12.8 in
- 29 wet days
- Avg wind
- 7 mph
- Travel score
- 6.1
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Pasadena in Fall
Over the season highs ease from about 90°F in early September to 68°F by late November.
A typical fall day in Pasadena reaches about 80°F and drops to 62°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Pasadena
Once humidity and wind are folded in, fall brings about 23 days that feel above 90°F and 0 that feel at or below 32°F.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Pasadena 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 | 63° / 45° | 4.2 | 10 | 10.3 | 5.6 |
| Feb | 66° / 49° | 3.3 | 9 | 10.9 | 6.1 |
| Mar | 72° / 55° | 3.7 | 9.2 | 11.8 | 6.8 |
| Apr | 78° / 61° | 3.8 | 8.9 | 12.7 | 6.9 |
| May | 85° / 69° | 3.5 | 9.8 | 13.5 | 5.5 |
| Jun | 89° / 74° | 4.5 | 12.8 | 13.9 | 3.8 |
| Jul | 91° / 76° | 3.6 | 12.7 | 13.7 | 3.3 |
| Aug | 92° / 75° | 3.9 | 13.3 | 13.1 | 3.2 |
| Sep | 88° / 71° | 4.6 | 11.8 | 12.2 | 4.4 |
| Oct | 81° / 62° | 4.1 | 8.7 | 11.3 | 6.8 |
| Nov | 71° / 53° | 4.1 | 8.3 | 10.5 | 7.0 |
| Dec | 65° / 47° | 4.2 | 9.6 | 10.1 | 5.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 44% of the time across fall.
Chance of precipitation in Fall
Pasadena gets around 12.8 in of rain over 29 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 36 min in early September to 10 h 12 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 4.1 kWh/m².
Hazard calendar for Pasadena
In fall, Pasadena overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Pasadena sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Pasadena?
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 Pasadena for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Pasadena in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Pasadena sees daytime highs around 80°F and nights near 62°F. Pack light clothes. Worth having: rain gear and sun protection. About 29 days see rain.
Sea temperature near Pasadena in Fall
The nearest coast averages about 77°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 39 mi away) is warmest in August at about 86°F and coldest in January near 59°F.
It's comfortable for a long swim from Apr 3 to Nov 25 — about 7.8 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 60 | 64 | 71 | 78 | 83 | 85 | 86 | 84 | 78 | 70 | 63 |
| Comfort | Cool | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Cool |
| Feb | 60 | Cool |
| Mar | 64 | Cool |
| Apr | 71 | Refreshing |
| May | 78 | Warm |
| Jun | 83 | Tropical |
| Jul | 85 | Tropical |
| Aug | 86 | Tropical |
| Sep | 84 | Tropical |
| Oct | 78 | Warm |
| Nov | 70 | Refreshing |
| Dec | 63 | Cool |
UV index in Pasadena 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 Pasadena peaks around July 20 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 6 | 10 | 10 | 10 | 11 | 11 | 8 | 6 | 5 | 4 |
| Level | Moderate | High | High | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 6 | High |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Pasadena 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 Pasadena is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 10 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) | 10 | 10 | 12 | 12 | 16 | 20 | 24 | 18 | 15 | 11 | 10 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 10 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Moderate |
| May | 16 | Moderate |
| Jun | 20 | Moderate |
| Jul | 24 | Moderate |
| Aug | 18 | Moderate |
| Sep | 15 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Pasadena?
Pasadena sits at 29.7°N, 95.2°W, 30 ft above sea level, in United States. The nearest listed city is South Houston, 2.5 mi away.
Topography around Pasadena
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Pasadena.
Within 2 miles, the terrain around Pasadena has only modest variations in elevation — a maximum elevation change of 56 ft around an average of 33 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 259 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 371 ft.
The land around Pasadena is covered by artificial surfaces (48%) and trees (39%) within 2 miles, artificial surfaces (39%) and trees (37%) within 10 miles, and trees (39%) and grassland (24%) 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 Pasadena (29.6911°, -95.2091°, elevation 30 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.