Arcelia in Fall
In fall (September, October and November), Arcelia sees average daytime highs around 31°C and overnight lows near 21°C, with 391 mm of rain over about 42 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 36% of the time across fall, and the air most often feels muggy.
Fall is Arcelia's 2nd-best season to visit on our travel score. For the whole year in context, see Arcelia's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 391 mm
- 42 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.1
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Arcelia in Fall
Across fall, daytime highs hold fairly steady around 31°C.
A typical fall day in Arcelia reaches about 31°C and drops to 21°C overnight. The warmest of the three months is November, the coolest November.
How fall really feels in Arcelia
Once humidity and wind are folded in, fall brings about 58 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Arcelia 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 | 32° / 18° | 7 | 0.7 | 11 | 5.5 |
| Feb | 33° / 20° | 5 | 0.5 | 11.4 | 4.5 |
| Mar | 35° / 22° | 2 | 0.4 | 11.9 | 3.2 |
| Apr | 37° / 24° | 1 | 0.1 | 12.4 | 1.9 |
| May | 37° / 24° | 23 | 4.3 | 12.8 | 1.6 |
| Jun | 34° / 23° | 174 | 19.7 | 13.1 | 2.4 |
| Jul | 32° / 22° | 215 | 21.9 | 13 | 3.0 |
| Aug | 31° / 22° | 228 | 24.3 | 12.6 | 2.9 |
| Sep | 30° / 22° | 260 | 24.5 | 12.1 | 3.1 |
| Oct | 31° / 21° | 115 | 14.6 | 11.6 | 4.1 |
| Nov | 32° / 19° | 16 | 3.2 | 11.1 | 5.1 |
| Dec | 32° / 18° | 3 | 0.6 | 10.9 | 5.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 36% of the time across fall.
Chance of precipitation in Fall
Arcelia gets around 391 mm of rain over 42 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early September to 11 hours 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 5.2 kWh/m².
Hazard calendar for Arcelia
In fall, Arcelia overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Arcelia's monsoon runs June–September, when most of the year's rain falls.
Is fall a good time to visit Arcelia?
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 Arcelia for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Arcelia in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Arcelia sees daytime highs around 31°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 42 days see rain.
UV index in Arcelia in Fall
Clear-sky midday UV across fall averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arcelia peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 7 (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) | 9 | 11 | 13 | 12 | 10 | 12 | 11 | 11 | 10 | 9 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Extreme |
| Oct | 9 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Arcelia 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 Arcelia is worst in May — around 42 µg/m³ PM2.5 (poor), about 4.5× the cleanest month (February, 9 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) | 12 | 9 | 11 | 26 | 42 | 15 | 14 | 13 | 14 | 17 | 15 | 13 |
| Level | Good | Good | Good | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 9 | Good |
| Mar | 11 | Good |
| Apr | 26 | Moderate |
| May | 42 | Poor |
| Jun | 15 | Moderate |
| Jul | 14 | Moderate |
| Aug | 13 | Moderate |
| Sep | 14 | Moderate |
| Oct | 17 | Moderate |
| Nov | 15 | Moderate |
| Dec | 13 | Moderate |
Where is Arcelia?
Arcelia sits at 18.3°N, 100.3°W, 393 m above sea level, in Mexico. The nearest listed city is Ciudad Altamirano, 41 km away.
Topography around Arcelia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arcelia.
Within 3 km, the terrain around Arcelia has significant variations in elevation — a maximum elevation change of 369 m around an average of 421 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,297 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,860 m.
The land around Arcelia is covered by shrubs (27%), trees (25%) and grassland (22%) within 3 km, trees (43%) and shrubs (30%) within 16 km, and trees (50%) and shrubs (31%) 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 Arcelia (18.3185°, -100.2815°, elevation 393 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.