Chapala in Fall
In fall (September, October and November), Chapala sees average daytime highs around 26°C and overnight lows near 15°C, with 195 mm of rain over about 30 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 36% of the time across fall, and the air most often feels humid.
Fall is Chapala's 2nd-best season to visit on our travel score. For the whole year in context, see Chapala's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 15°C
- Rainfall
- 195 mm
- 30 wet days
- Avg wind
- 5 km/h
- Travel score
- 6.8
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Chapala in Fall
Across fall, daytime highs hold fairly steady around 26°C.
A typical fall day in Chapala reaches about 26°C and drops to 15°C overnight. The warmest of the three months is October, the coolest November.
Chapala 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 (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 10° | 17 | 1.7 | 10.9 | 8.6 |
| Feb | 26° / 11° | 11 | 1.6 | 11.3 | 8.5 |
| Mar | 28° / 13° | 6 | 1 | 11.9 | 7.9 |
| Apr | 30° / 15° | 3 | 0.9 | 12.5 | 6.2 |
| May | 31° / 16° | 16 | 4.2 | 12.9 | 5.3 |
| Jun | 29° / 18° | 116 | 18 | 13.2 | 4.6 |
| Jul | 26° / 17° | 173 | 24.7 | 13.1 | 4.4 |
| Aug | 26° / 17° | 157 | 23.9 | 12.7 | 4.5 |
| Sep | 26° / 17° | 138 | 19.8 | 12.1 | 5.0 |
| Oct | 26° / 15° | 45 | 8.3 | 11.5 | 7.0 |
| Nov | 25° / 13° | 12 | 2.1 | 11 | 8.5 |
| Dec | 24° / 11° | 6 | 1 | 10.8 | 8.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 36% of the time across fall.
Chance of precipitation in Fall
Chapala gets around 195 mm of rain over 30 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 5 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early September to 10 h 54 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 5.1 kWh/m².
Hazard calendar for Chapala
In fall, Chapala overlaps its pacific hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Chapala sits in the eastern Pacific hurricane zone; the season peaks August–September.
Chapala's rainy season runs June–September, when most of the year's rain falls.
Is fall a good time to visit Chapala?
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 Chapala for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Chapala in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Chapala sees daytime highs around 26°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 30 days see rain.
UV index in Chapala in Fall
Clear-sky midday UV across fall averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chapala peaks around May 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).
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) | 8 | 11 | 13 | 13 | 14 | 13 | 12 | 13 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 14 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Chapala 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 Chapala is worst in May — around 44 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (July, 14 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) | 20 | 18 | 20 | 33 | 44 | 17 | 14 | 15 | 17 | 17 | 18 | 21 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 18 | Moderate |
| Mar | 20 | Moderate |
| Apr | 33 | Moderate |
| May | 44 | Poor |
| Jun | 17 | Moderate |
| Jul | 14 | Moderate |
| Aug | 15 | Moderate |
| Sep | 17 | Moderate |
| Oct | 17 | Moderate |
| Nov | 18 | Moderate |
| Dec | 21 | Moderate |
Where is Chapala?
Chapala sits at 20.3°N, 103.2°W, 1,561 m above sea level, in Mexico. The nearest listed city is San José del Castillo, 25 km away.
Topography around Chapala
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chapala.
Within 3 km, the terrain around Chapala has only modest variations in elevation — a maximum elevation change of 211 m around an average of 1,544 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 957 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,137 m.
The land around Chapala is covered by water (52%) within 3 km, water (50%) and trees (20%) within 16 km, and trees (37%) and cropland (25%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- 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 Chapala (20.2925°, -103.1896°, elevation 1,561 m), 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.