Sant Boi de Llobregat in Fall
In fall (September, October and November), Sant Boi de Llobregat sees average daytime highs around 20°C and overnight lows near 16°C, with 244 mm of rain over about 28 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 25°C in early September to 15°C by late November. The sky is clear or mostly clear about 45% of the time across fall, and the air most often feels dry.
Fall is Sant Boi de Llobregat's 2nd-best season to visit on our travel score. For the whole year in context, see Sant Boi de Llobregat's year-round climate.
- Avg daytime high
- 20°C
- 2nd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 244 mm
- 28 wet days
- Avg wind
- 13 km/h
- Travel score
- 6.4
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Sant Boi de Llobregat in Fall
Over the season highs ease from about 25°C in early September to 15°C by late November.
A typical fall day in Sant Boi de Llobregat reaches about 20°C and drops to 16°C overnight. The warmest of the three months is September, the coolest November.
Sant Boi de Llobregat 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 | 13° / 8° | 45 | 6.7 | 9.4 | 3.8 |
| Feb | 13° / 8° | 36 | 5.8 | 10.3 | 4.0 |
| Mar | 14° / 10° | 40 | 6 | 11.7 | 4.8 |
| Apr | 16° / 12° | 48 | 7.6 | 13.1 | 5.4 |
| May | 19° / 15° | 43 | 6.6 | 14.3 | 6.7 |
| Jun | 23° / 19° | 29 | 4.7 | 14.9 | 8.0 |
| Jul | 25° / 22° | 22 | 4.6 | 14.7 | 8.3 |
| Aug | 26° / 22° | 44 | 6.4 | 13.7 | 7.7 |
| Sep | 24° / 20° | 86 | 9.9 | 12.3 | 7.1 |
| Oct | 20° / 16° | 94 | 10.1 | 10.9 | 6.5 |
| Nov | 16° / 12° | 64 | 7.8 | 9.7 | 5.5 |
| Dec | 13° / 9° | 44 | 6.4 | 9.1 | 4.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 45% of the time across fall.
Chance of precipitation in Fall
Sant Boi de Llobregat gets around 244 mm of rain over 28 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 13 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 hours in early September to 9 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 3.4 kWh/m².
Is fall a good time to visit Sant Boi de Llobregat?
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 Sant Boi de Llobregat for sightseeing.
What to pack for Sant Boi de Llobregat in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Sant Boi de Llobregat sees daytime highs around 20°C and nights near 16°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 28 days see rain.
Sea temperature near Sant Boi de Llobregat in Fall
The nearest coast averages about 21°C 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 km away) is warmest in August at about 26°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 8 to Oct 26 — about 4.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 14 | 15 | 17 | 21 | 24 | 26 | 24 | 21 | 18 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Bracing |
| May | 17 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Warm |
| Aug | 26 | Warm |
| Sep | 24 | Warm |
| Oct | 21 | Refreshing |
| Nov | 18 | Cool |
| Dec | 15 | Cool |
UV index in Sant Boi de Llobregat in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sant Boi de Llobregat peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 6 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Where is Sant Boi de Llobregat?
Sant Boi de Llobregat sits at 41.3°N, 2.0°E, 45 m above sea level, in Spain. The nearest listed city is Sant Joan Despí, 3.0 km away.
Topography around Sant Boi de Llobregat
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sant Boi de Llobregat.
Within 3 km, the terrain around Sant Boi de Llobregat has significant variations in elevation — a maximum elevation change of 276 m around an average of 42 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 650 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,677 m.
The land around Sant Boi de Llobregat is covered by artificial surfaces (35%) and trees (31%) within 3 km, trees (35%), water (28%) and artificial surfaces (22%) within 16 km, and trees (38%) and water (34%) 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 Sant Boi de Llobregat (41.3436°, 2.0366°, elevation 45 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.