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Weather in San Marino - today, tomorrow and 14-day forecast

Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

single country point. About & methodology.

Next days in San Marino

today☀️ 29°💧 1.1 mm
Sun☀️ 27°night 19°
Mon☀️ 31°💧 2 mm
Tue🌧️ 33°💧 3.4 mm
Wed🌧️ 31°💧 0.6 mm
Thu🌧️ 18°💧 18.8 mm
Fri🌧️ 21°💧 2 mm
Sat🌧️ 28°💧 0.5 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Tuesday 8 Sept in San Marino, the forecast high is 33°C. Typical daytime temperatures at this time of year range from 23°C to 28°C, so it will be exceptionally warm. It is warmer than 100% of similar days.

29°Cwarmer than usual
usually 23°C–29°C
warmer than 86% of similar days
night: warmer than usual rain: typical rainfall wind: typical
27°Cwarmer than usual
usually 23°C–28°C
warmer than 70% of similar days
night: warmer than usual rain: less rain than usual wind: typical
31°Cexceptionally warm
usually 23°C–28°C
warmer than 97% of similar days
night: exceptionally warm rain: more rain than usual wind: typical
33°Cexceptionally warm
usually 23°C–28°C
warmer than 100% of similar days
night: warmer than usual rain: more rain than usual wind: lighter than usual
31°Cexceptionally warm
usually 22°C–28°C
warmer than 96% of similar days
night: warmer than usual rain: typical rainfall wind: stronger than usual
18°Cexceptionally cool
usually 22°C–28°C
cooler than 97% of similar days
night: cooler than usual rain: exceptionally wet wind: lighter than usual
21°Ccooler than usual
usually 22°C–27°C
cooler than 86% of similar days
night: near normal rain: more rain than usual wind: exceptionally light

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
15°25°35° 1981: 23°C1982: 26°C1983: 26°C1984: 24°C1985: 24°C1986: 23°C1987: 26°C1988: 26°C1989: 21°C1990: 24°C1991: 26°C1992: 25°C1993: 24°C1994: 28°C1995: 24°C1996: 21°C1997: 30°C1998: 26°C1999: 24°C2000: 23°C2001: 23°C2002: 23°C2003: 23°C2004: 25°C2005: 25°C2006: 27°C2007: 23°C2008: 30°C2009: 23°C2010: 24°C2011: 29°C2012: 25°C2013: 28°C2014: 24°C2015: 23°C2016: 25°C2017: 25°C2018: 27°C2019: 25°C2020: 27°C2021: 26°C2022: 28°C2023: 27°C2024: 28°C2025: 27°C 2026 forecast: 27°C current forecast 27°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 25°C by day. The coolest year was 1996 (21°C) and the warmest was 2008 (30°C). The current forecast averages 27°C - higher than in 84% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - San Marino

San Marino - 14-day weather forecast infographic

Day-by-day forecast for San Marino

Saturday5 September 2026
☀️29°clear sky
night 21° · evening 26° · rain 1.05 mm · humidity 24% · wind 5 m/s · clouds 1%
Sunday6 September 2026
☀️27°clear sky
night 19° · evening 25° · humidity 37% · wind 5 m/s · clouds 2%
Monday7 September 2026
☀️31°clear sky
night 21° · evening 26° · rain 2 mm · humidity 28% · wind 6 m/s · clouds 62%
Tuesday8 September 2026
🌧️33°light rain
night 19° · evening 20° · rain 3.44 mm · humidity 27% · wind 4 m/s · clouds 19%
Wednesday9 September 2026
🌧️31°light rain
night 20° · evening 22° · rain 0.58 mm · humidity 29% · wind 6 m/s · clouds 45%
Thursday10 September 2026
🌧️18°moderate rain
night 16° · evening 17° · rain 18.78 mm · humidity 92% · wind 3 m/s · clouds 99%
Friday11 September 2026
🌧️21°light rain
night 17° · evening 17° · rain 1.98 mm · humidity 66% · wind 3 m/s · clouds 87%
Saturday12 September 2026
🌧️28°light rain
night 18° · evening 19° · rain 0.45 mm · humidity 37% · wind 4 m/s · clouds 9%
Sunday13 September 2026
🌤️28°scattered clouds
night 19° · evening 20° · rain 9.6 mm · humidity 38% · wind 3 m/s · clouds 45%
Monday14 September 2026
🌧️21°light rain
night 16° · evening 17° · rain 1.8 mm · humidity 79% · wind 3 m/s · clouds 55%
Tuesday15 September 2026
☁️28°broken clouds
night 18° · evening 18° · rain 10.77 mm · humidity 40% · wind 4 m/s · clouds 52%
Wednesday16 September 2026
🌧️28°moderate rain
night 18° · evening 20° · rain 3.84 mm · humidity 42% · wind 5 m/s · clouds 6%
Thursday17 September 2026
🌧️26°moderate rain
night 18° · evening 19° · rain 9.78 mm · humidity 52% · wind 4 m/s · clouds 29%
Friday18 September 2026
🌧️26°light rain
night 19° · evening 20° · rain 3.48 mm · humidity 50% · wind 3 m/s · clouds 22%
Saturday19 September 2026
🌧️28°light rain
night 20° · evening 20° · rain 0.24 mm · humidity 38% · wind 4 m/s · clouds 67%
Sunday20 September 2026
☀️29°clear sky
night 21° · evening 21° · humidity 36% · wind 5 m/s · clouds 3%

Pollen in San Marino - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTSan MarinoHighest pollen today: Ragweed19 grains/m³ · moderate leveltoday5.09tomorrow6.09Mon7.09Tue8.09Grasses3332Ragweed1917384nonelowmoderatehighvery highoff season: alder, birch, mugwort, olive · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today ragweed pollen is highest in San Marino - about 19 grains/m³, moderate level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Weather in other countries in Europe

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Public holidays in San Marino - when are the long weekends?

Next long weekend in San Marino: Commemoration of all those who died at war (2 November, Monday) - Saturday–Monday (3 days off).

2026

1 NovemberSunday
All Saints' Day
falls on a weekend
2 NovemberMonday
Commemoration of all those who died at war
long weekend
8 DecemberTuesday
Immaculate Conception
long weekend + bridge day
24 DecemberThursday
Christmas Eve
long weekend + bridge day
25 DecemberFriday
Christmas Day
long weekend
26 DecemberSaturday
St. Stephen's Day
falls on a weekend
31 DecemberThursday
New Year's Eve
long weekend + bridge day

2027

1 JanuaryFriday
New Year's Day
long weekend
6 JanuaryWednesday
Epiphany
5 FebruaryFriday
Feast of Saint Agatha
long weekend
25 MarchThursday
Anniversary of the Arengo
long weekend + bridge day
28 MarchSunday
Easter Sunday
falls on a weekend
Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave. Lunar holiday dates marked as tentative may shift by one day after the official announcement.
Calendar sources
Nager.Date public holiday database

FAQ - San Marino weather

What is the weather like in San Marino today?
Today it is about 29° during the day and 21° at night, clear sky.
How far ahead can I check the forecast for San Marino?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.