San Isidro in Fall
In fall (September, October and November), San Isidro sees average daytime highs around 22°C and overnight lows near 20°C, with 97 mm of rain over about 20 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 24°C in early September to 19°C by late November. The sky is clear or mostly clear about 62% of the time across fall, and the air most often feels humid.
Fall is San Isidro's 2nd-best season to visit on our travel score. San Isidro has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see San Isidro's year-round climate.
- Avg daytime high
- 22°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 97 mm
- 20 wet days
- Avg wind
- 13 km/h
- Travel score
- 7.6
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in San Isidro in Fall
Over the season highs ease from about 24°C in early September to 19°C by late November.
A typical fall day in San Isidro reaches about 22°C and drops to 20°C overnight. The warmest of the three months is September, the coolest November.
San Isidro 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 | 18° / 16° | 33 | 5.9 | 10.4 | 6.6 |
| Feb | 17° / 16° | 37 | 6.2 | 11 | 6.6 |
| Mar | 18° / 16° | 39 | 7 | 11.8 | 6.7 |
| Apr | 18° / 16° | 35 | 7.5 | 12.7 | 6.7 |
| May | 19° / 17° | 24 | 6.2 | 13.4 | 7.3 |
| Jun | 21° / 19° | 12 | 3.3 | 13.7 | 8.3 |
| Jul | 23° / 21° | 1 | 0.4 | 13.6 | 9.6 |
| Aug | 24° / 22° | 3 | 1 | 13 | 9.5 |
| Sep | 23° / 21° | 20 | 4.3 | 12.2 | 8.4 |
| Oct | 22° / 20° | 42 | 8.7 | 11.3 | 7.3 |
| Nov | 20° / 19° | 34 | 7.2 | 10.6 | 7.0 |
| Dec | 19° / 17° | 46 | 7.3 | 10.3 | 6.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 62% of the time across fall.
Chance of precipitation in Fall
San Isidro gets around 97 mm of rain over 20 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 13 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 24 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 5.0 kWh/m².
Hazard calendar for San Isidro
In fall, San Isidro overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
San Isidro sits in the Atlantic hurricane belt; the season peaks August–October.
San Isidro sees seasonal dust haze (July–August), heaviest in July.
Is fall a good time to visit San Isidro?
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 one of the better times to visit San Isidro for general sightseeing.
What to pack for San Isidro in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Isidro sees daytime highs around 22°C and nights near 20°C. Pack sun protection. Worth having: light clothes and rain gear. About 20 days see rain.
Sea temperature near San Isidro in Fall
The nearest coast averages about 23°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 24°C and coldest in March near 19°C.
It's comfortable for a long swim from May 9 to Jan 10 — about 8.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 19 | 19 | 19 | 20 | 21 | 22 | 23 | 24 | 24 | 22 | 21 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 19 | Cool |
| Mar | 19 | Cool |
| Apr | 19 | Cool |
| May | 20 | Refreshing |
| Jun | 21 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 24 | Refreshing |
| Oct | 24 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 21 | Refreshing |
UV index in San Isidro 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 San Isidro peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 | 9 | 9 | 10 | 11 | 11 | 11 | 8 | 9 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 9 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in San Isidro 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 San Isidro is worst in February — around 19 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (June, 6 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) | 18 | 19 | 10 | 7 | 7 | 6 | 9 | 11 | 8 | 9 | 8 | 17 |
| Level | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 19 | Moderate |
| Mar | 10 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 9 | Good |
| Aug | 11 | Good |
| Sep | 8 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 17 | Moderate |
Where is San Isidro?
San Isidro sits at 28.1°N, 16.6°W, 207 m above sea level, in Spain. The nearest listed city is Granadilla de Abona, 5.0 km away.
Topography around San Isidro
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Isidro.
Within 3 km, the terrain around San Isidro has large variations in elevation — a maximum elevation change of 605 m around an average of 214 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,658 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,670 m.
The land around San Isidro is covered by grassland (54%) within 3 km, water (42%) and grassland (25%) within 16 km, and water (83%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- 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 San Isidro (28.0762°, -16.558°, elevation 207 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.