Bay City in Fall
In fall (September, October and November), Bay City sees average daytime highs around 81°F and overnight lows near 63°F, with 11.8 in of rain over about 31 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 70°F by late November. The sky is clear or mostly clear about 45% of the time across fall, and the air most often feels oppressive.
Fall is Bay City's 3rd-best season to visit on our travel score. For the whole year in context, see Bay City's year-round climate.
- Avg daytime high
- 81°F
- 2nd-warmest season
- Avg overnight low
- 63°F
- Rainfall
- 11.8 in
- 31 wet days
- Avg wind
- 7 mph
- Travel score
- 5.9
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Bay City in Fall
Over the season highs ease from about 90°F in early September to 70°F by late November.
A typical fall day in Bay City reaches about 81°F and drops to 63°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Bay City
Once humidity and wind are folded in, fall brings about 25 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.
Bay City 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 | 64° / 47° | 3.5 | 9.3 | 10.4 | 6.0 |
| Feb | 68° / 50° | 2.6 | 8.3 | 11 | 6.4 |
| Mar | 73° / 56° | 3.2 | 7.7 | 11.8 | 7.1 |
| Apr | 79° / 62° | 3.3 | 8.5 | 12.7 | 6.9 |
| May | 85° / 70° | 3.4 | 9.5 | 13.4 | 5.3 |
| Jun | 90° / 75° | 4.0 | 12.2 | 13.8 | 3.8 |
| Jul | 91° / 76° | 3.3 | 12.3 | 13.7 | 3.4 |
| Aug | 92° / 76° | 3.6 | 12.4 | 13 | 3.2 |
| Sep | 88° / 72° | 4.5 | 13.1 | 12.2 | 4.2 |
| Oct | 82° / 63° | 3.8 | 9.2 | 11.3 | 6.5 |
| Nov | 73° / 55° | 3.5 | 8.7 | 10.6 | 7.1 |
| Dec | 66° / 48° | 3.4 | 8.9 | 10.2 | 6.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 45% of the time across fall.
Chance of precipitation in Fall
Bay City gets around 11.8 in of rain over 31 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — 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 18 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 4.2 kWh/m².
Hazard calendar for Bay City
In fall, Bay City overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Bay City sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Bay City?
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 Bay City for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Bay City in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Bay City sees daytime highs around 81°F and nights near 63°F. Pack light clothes. Worth having: rain gear and sun protection. About 31 days see rain.
Sea temperature near Bay City in Fall
The nearest coast averages about 78°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 25 mi away) is warmest in August at about 85°F and coldest in February near 62°F.
It's comfortable for a long swim from Apr 1 to Dec 5 — about 8.2 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 62 | 62 | 65 | 71 | 77 | 83 | 85 | 85 | 84 | 79 | 72 | 66 |
| Comfort | Cool | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 62 | Cool |
| Feb | 62 | Cool |
| Mar | 65 | Cool |
| Apr | 71 | Refreshing |
| May | 77 | Warm |
| Jun | 83 | Tropical |
| Jul | 85 | Tropical |
| Aug | 85 | Tropical |
| Sep | 84 | Tropical |
| Oct | 79 | Warm |
| Nov | 72 | Refreshing |
| Dec | 66 | Cool |
UV index in Bay City in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bay City peaks around August 11 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 | 7 | 10 | 10 | 11 | 11 | 11 | 9 | 7 | 5 | 4 |
| Level | Moderate | High | High | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 7 | High |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in Bay City 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 Bay City is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 7 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) | 8 | 8 | 10 | 11 | 14 | 17 | 20 | 15 | 11 | 7 | 7 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 17 | Moderate |
| Jul | 20 | Moderate |
| Aug | 15 | Moderate |
| Sep | 11 | Good |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Bay City?
Bay City sits at 29.0°N, 96.0°W, 52 ft above sea level, in United States. The nearest listed city is Lake Jackson, 32 mi away.
Topography around Bay City
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Bay City.
Within 2 miles, the terrain around Bay City has only modest variations in elevation — a maximum elevation change of 66 ft around an average of 52 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 112 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 249 ft.
The land around Bay City is covered by trees (38%) and grassland (38%) within 2 miles, grassland (47%), cropland (28%) and trees (23%) within 10 miles, and water (28%), grassland (27%) and trees (20%) 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 Bay City (28.9828°, -95.9694°, elevation 52 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.