San Marino weather by month

The best time to visit San Marino is June to August — 95/100 in June, 24°C and 6 rainy days. The best season is summer, June to August (91/100 on average).

The worst month is January at 55/100 — cold, a little rain, clean air. See January →

Updated September 2026 · climate normals from ERA5 reanalysis

San Marino San Marino · Central & Southern Italy · City95
  1. 55Jan
  2. 62Feb
  3. 69Mar
  4. 78Apr
  5. 82May
  6. 95Jun
  7. 88Jul
  8. 89Aug
  9. 87Sep
  10. 77Oct
  11. 64Nov
  12. 58Dec

Best season: June to August (91/100 on average) · worst January (55/100)

Days
24°C
Nights
14°C
Wet days
6
Sun
13.3 h
Humidity
66%
Daylight
15 h
San Marino, San Marino
Photo: Deividas Vasinas · Pexels

San Marino, month by month

Comfort score out of 100 for the kind of trip San Marino is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan55D7°C8 d6 hBusy3
Feb62C9°C9 d7 hBusy3
Mar69C11°C9 d9 hShoulder2
Apr78B14°C9 d11 hShoulder2
May82A18°C12 d12 hShoulder—
Jun95S24°C6 d13 hBusy1
Jul88A27°C7 d13 hPeak2
Aug89A26°C7 d12 hBusy1
Sep87A22°C9 d10 hPeak2
Oct77B17°C8 d8 hShoulder2
Nov64C11°C11 d6 hBusy2
Dec58D8°C10 d6 hBusy2

What's on in San Marino through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

January
  • Winter quiet on the rock7 Jan – 15 MarClosure
February
  • Feast of Saint Agatha5 FebHoliday
April
  • Investiture of the Captains Regent1 AprFestival
June
  • Superbike weekend at Misano12–14 JunFestival
July
  • San Marino Antiqua (Medieval Days)24–26 JulFestival
  • Coach day-tripper peak1 Jul – 31 AugSeason
September
  • San Marino motorcycle Grand Prix5–20 Sep (usually)Festival
  • Feast of Saint Marinus3 SepHoliday
October
  • Autumn investiture1 OctFestival
  • In-cloud days on Monte Titano15 Oct – 15 Apr (usually)Season
November
  • Christmas of Wonders22 Nov – 6 Jan (usually)Festival

Everything on in San Marino through the year →

Crowds in San Marino in June

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusySuperbike weekend at Misano, school holidays in 4 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Traveller notes on San Marino

What people who have been say about the place — the year-round notes first, then month by month.

San Marino forum threads describe January as genuinely cold, in line with the wider northern Italian winter, and posters were quick to point out that the historic center sits high up on Mount Titano - meaning it runs noticeably colder and windier than towns down on the Romagna coast below. Despite the chill, the old town stays lively through the season with Christmas markets and an outdoor ice rink running into early January, so there's real reason to visit even in the coldest stretch. The consistent advice: dress for real mountain-town winter, not coastal Italy, with a proper coat and warm layers for walking the exposed hilltop streets.
MonteTitanoRegular · January · 1 month ago · Read more on Tripadvisor ↗
Detailed month-specific trip reports for San Marino itself are limited on the forum, with most discussion folding it into broader Emilia-Romagna coast planning around nearby Rimini. Posters do flag that San Marino's hilltop perch on Monte Titano gives it a noticeably different climate from the beach towns below - cooler and windier, especially compared to the intense heat that sends locals fleeing the coast come August. Posters generally recommend checking a dedicated regional forecast rather than relying on generic country-level weather for a day trip up the mountain. Given the elevation effect, June here should run comfortably warm by day with cooler evenings, ahead of the fuller summer heat further down toward the coast.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗
Forum threads covering the San Marino/Rimini area describe July as genuinely variable year to year - some summers run hot and dry with nights staying close to 30C, others turn noticeably cooler and rainier. Typical daytime highs stay just under 30C with nights in the low-20s during late July, but posters were clear that strong, short, localized storm fronts can move through even on what started as a beautiful sunny morning. The consistent read: expect real summer heat as the baseline, but keep flexible plans since an afternoon or evening storm is a genuine possibility even in peak season.
EmiliaRomagnaHilltopRegular · July · 1 month ago · Read more on Tripadvisor ↗
August is the most expensive month in this corner of Italy and the hottest, with locals leaving town as visitors arrive - the forum's own reference point is July and August days over 40C elsewhere in the country. San Marino's particular rhythm is the day trip: it is very touristy through the day, the car parks fill, and it becomes delightful in the evening once the coaches have gone. Which is the whole of the advice - stay the night, or come late. From Rimini it is about an hour. Our row is milder than the region's worst at 26.4C, because the republic sits up on Monte Titano. The record: 16.6C nights, 7.3 precipitation days carrying 55.1mm and 12 hours of sun.
DelightfulOnceTheCoachesGo · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from San Marino's card on the map.