Lafayette in Fall
In fall (September, October and November), Lafayette sees average daytime highs around 80°F and overnight lows near 60°F, with 11.1 in of rain over about 27 wet days across the season. It is the 2nd-warmest season and the driest season of the year.
Over the season highs ease from about 89°F in early September to 68°F by late November. The sky is clear or mostly clear about 47% of the time across fall, and the air most often feels dry.
Fall is Lafayette's 2nd-best season to visit on our travel score. For the whole year in context, see Lafayette's year-round climate.
- Avg daytime high
- 80°F
- 2nd-warmest season
- Avg overnight low
- 60°F
- Rainfall
- 11.1 in
- 27 wet days
- Avg wind
- 7 mph
- Travel score
- 6.2
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Lafayette in Fall
Over the season highs ease from about 89°F in early September to 68°F by late November.
A typical fall day in Lafayette reaches about 80°F and drops to 60°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Lafayette
Once humidity and wind are folded in, fall brings about 21 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.
Lafayette 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 | 62° / 44° | 5.0 | 9.5 | 10.3 | 5.4 |
| Feb | 65° / 47° | 4.2 | 8.8 | 10.9 | 6.0 |
| Mar | 72° / 53° | 4.3 | 10.1 | 11.8 | 6.7 |
| Apr | 78° / 59° | 4.3 | 9.1 | 12.7 | 7.0 |
| May | 85° / 67° | 3.6 | 9.7 | 13.5 | 5.5 |
| Jun | 89° / 73° | 4.5 | 14.2 | 13.9 | 3.7 |
| Jul | 90° / 75° | 4.9 | 17.5 | 13.8 | 3.2 |
| Aug | 91° / 74° | 4.8 | 16.1 | 13.1 | 3.2 |
| Sep | 88° / 70° | 3.8 | 11.2 | 12.2 | 4.5 |
| Oct | 80° / 60° | 3.8 | 7.7 | 11.3 | 7.0 |
| Nov | 71° / 51° | 3.5 | 8.2 | 10.5 | 7.1 |
| Dec | 64° / 46° | 4.6 | 9.2 | 10.1 | 5.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 47% of the time across fall.
Chance of precipitation in Fall
Lafayette gets around 11.1 in of rain over 27 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 4.2 kWh/m².
Hazard calendar for Lafayette
In fall, Lafayette overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Lafayette sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Lafayette?
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 Lafayette for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Lafayette in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Lafayette sees daytime highs around 80°F and nights near 60°F. Pack light clothes. Worth having: rain gear and sun protection. About 27 days see rain.
Sea temperature near Lafayette in Fall
The nearest coast averages about 76°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 42 mi away) is warmest in August at about 86°F and coldest in January near 58°F.
It's comfortable for a long swim from Mar 30 to Nov 15 — about 7.6 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 58 | 60 | 65 | 72 | 78 | 84 | 86 | 86 | 83 | 76 | 68 | 62 |
| Comfort | Bracing | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 58 | Bracing |
| Feb | 60 | Cool |
| Mar | 65 | Cool |
| Apr | 72 | Refreshing |
| May | 78 | Warm |
| Jun | 84 | Tropical |
| Jul | 86 | Tropical |
| Aug | 86 | Tropical |
| Sep | 83 | Tropical |
| Oct | 76 | Warm |
| Nov | 68 | Cool |
| Dec | 62 | Cool |
UV index in Lafayette 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 Lafayette peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 | 10 | 10 | 9 | 8 | 6 | 5 | 4 |
| Level | Moderate | High | High | Extreme | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Extreme |
| May | 10 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Lafayette 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 Lafayette is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 8 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) | 14 | 13 | 11 | 11 | 14 | 18 | 22 | 16 | 12 | 9 | 13 | 8 |
| Level | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 13 | Moderate |
| Mar | 11 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 18 | Moderate |
| Jul | 22 | Moderate |
| Aug | 16 | Moderate |
| Sep | 12 | Moderate |
| Oct | 9 | Good |
| Nov | 13 | Moderate |
| Dec | 8 | Good |
Where is Lafayette?
Lafayette sits at 30.2°N, 92.0°W, 36 ft above sea level, in United States. The nearest listed city is New Iberia, 19 mi away.
Topography around Lafayette
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lafayette.
Within 2 miles, the terrain around Lafayette has only modest variations in elevation — a maximum elevation change of 85 ft around an average of 43 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 121 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 233 ft.
The land around Lafayette is covered by trees (41%) and artificial surfaces (41%) within 2 miles, trees (40%) and grassland (37%) within 10 miles, and trees (38%) and cropland (26%) 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 Lafayette (30.2241°, -92.0198°, 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.