San Marino in Fall
In fall (September, October and November), San Marino sees average daytime highs around 19°C and overnight lows near 13°C, with 249 mm of precipitation over about 30 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 26°C in early September to 11°C by late November. The sky is clear or mostly clear about 38% of the time across fall, and the air most often feels dry.
Fall is San Marino's 2nd-best season to visit on our travel score. For the whole year in context, see San Marino's year-round climate.
- Avg daytime high
- 19°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Precipitation
- 249 mm
- 30 wet days
- Avg wind
- 10 km/h
- Travel score
- 5.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in San Marino in Fall
Over the season highs ease from about 26°C in early September to 11°C by late November.
A typical fall day in San Marino reaches about 19°C and drops to 13°C overnight. The warmest of the three months is September, the coolest November.
San Marino 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 4° | 60 | 8.8 | 1.4 | 9.1 | 1.7 |
| Feb | 10° / 4° | 69 | 8.5 | 1.7 | 10.2 | 2.2 |
| Mar | 13° / 6° | 66 | 8.5 | 0.7 | 11.6 | 3.8 |
| Apr | 16° / 10° | 71 | 10.4 | 0 | 13.2 | 5.1 |
| May | 21° / 14° | 65 | 9.3 | 0 | 14.5 | 6.7 |
| Jun | 26° / 18° | 50 | 6.7 | 0 | 15.2 | 7.6 |
| Jul | 28° / 20° | 38 | 5.8 | 0 | 14.9 | 7.2 |
| Aug | 28° / 20° | 49 | 7 | 0 | 13.8 | 7.0 |
| Sep | 24° / 17° | 75 | 9 | 0 | 12.3 | 7.2 |
| Oct | 19° / 13° | 83 | 9.6 | 0 | 10.8 | 6.1 |
| Nov | 14° / 9° | 91 | 10.9 | 0.4 | 9.4 | 3.8 |
| Dec | 10° / 5° | 81 | 10.6 | 1.1 | 8.8 | 2.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 38% of the time across fall.
Chance of precipitation in Fall
San Marino gets around 249 mm of rain and snow over 30 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 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 06 min in early September to 9 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 2.9 kWh/m².
Is fall a good time to visit San Marino?
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 San Marino for sightseeing.
What to pack for San Marino in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Marino sees daytime highs around 19°C and nights near 13°C. Worth packing: light clothes, a warm layer and rain gear. About 30 days see rain.
Sea temperature near San Marino in Fall
The nearest coast averages about 19°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 10°C.
It's comfortable for a long swim from May 29 to Oct 11 — about 4.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 11 | 10 | 11 | 14 | 18 | 23 | 25 | 26 | 23 | 19 | 16 | 13 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 11 | Bracing |
| Feb | 10 | Bracing |
| Mar | 11 | Bracing |
| Apr | 14 | Bracing |
| May | 18 | Cool |
| Jun | 23 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 23 | Refreshing |
| Oct | 19 | Cool |
| Nov | 16 | Cool |
| Dec | 13 | Bracing |
UV index in San Marino in Fall
Clear-sky midday UV across fall averages around 3 — 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 Marino peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 5 | 7 | 7 | 8 | 9 | 8 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in San Marino 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 Marino is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 14 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 13 | 11 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 14 | Moderate |
| Mar | 16 | Moderate |
| Apr | 15 | Moderate |
| May | 14 | Moderate |
| Jun | 13 | Moderate |
| Jul | 12 | Good |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 13 | Moderate |
| Nov | 11 | Good |
| Dec | 11 | Good |
Where is San Marino?
San Marino sits at 43.9°N, 12.4°E, 683 m above sea level, in San Marino. The nearest listed city is Rimini, 16 km away.
Topography around San Marino
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Marino.
Within 3 km, the terrain around San Marino has significant variations in elevation — a maximum elevation change of 568 m around an average of 341 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,223 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,691 m.
The land around San Marino is covered by trees (41%) and grassland (26%) within 3 km, trees (35%), grassland (30%) and cropland (26%) within 16 km, and trees (45%) and water (22%) within 80 km.
San Marino travel facts
- Power plugs
- Type C / F / L
- 230 V · 50 Hz
- Prices
- ≈ 79% of US
- price level, 2023
- GDP per capita
- $59,871
- 2023
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 3.6
- per 100k, 2002
- Road deaths
- 0
- per 100k/yr, 2016
- Income group
- High
- World Bank
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 Marino (43.9367°, 12.4464°, elevation 683 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.