San Marino, San Marino Weather

San Marino 🇸🇲 · Local time 20:01
80°
Partly Cloudy Feels like 82° · High 87° / Low 71°
Wind
7 mph
Humidity
63%
0 Low
Updated 1 hour ago

San Marino hourly forecast: next 24 hours

Today's high of 87°F (30°C) is about 7°F (4°C) above the typical August high of 80°F (27°C).

Now
9 PM
10 PM
11 PM
18%
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
6:28 AM
Sunrise
7 AM
8 AM
9 AM
10 AM
11 AM
12 PM
1 PM
2 PM
3 PM
4 PM
5 PM
6 PM
7 PM

Full San Marino hourly forecast →

Current conditions in detail

Feels like
82°
Wind
7 mph
E · gusts 9 mph
Humidity
63%
Pressure
29.98 in
Visibility
6 mi
Precipitation
0.0 in
5% chance today

San Marino weather tomorrow (Thursday, August 27)

Tomorrow in San Marino looks sunny, with a high of 92° and an overnight low of 73°. Rain is unlikely (5% chance). Winds top out near 10 mph, and the UV index reaches 6 (high).

High / Low
92° / 73°
Precipitation
5%
Sunrise / sunset
06:28 AM / 07:55 PM

See the full San Marino 14-day forecast →

San Marino 14-day forecast

Today
Sunny
High 87° Low 71°
Chance of precipitation: 5%
Thu, Aug 27 Thursday
Sunny
High 92° Low 73°
Chance of precipitation: 5%
Fri, Aug 28 Friday
Sunny
High 95° Low 74°
Chance of precipitation: 3%
Sat, Aug 29 Saturday
Overcast
High 95° Low 75°
Chance of precipitation: 5%
Sun, Aug 30 Sunday
Sunny
High 88° Low 70°
Chance of precipitation: 2%
Mon, Aug 31 Monday
Sunny
High 89° Low 70°
Chance of precipitation: 1%
Tue, Sep 1 Tuesday
Sunny
High 89° Low 72°
Chance of precipitation: 1%
Wed, Sep 2 Wednesday
Sunny
High 89° Low 74°
Chance of precipitation: 17%
Thu, Sep 3 Thursday
Sunny
High 79° Low 67°
Chance of precipitation: 57%
Fri, Sep 4 Friday
Sunny
High 78° Low 66°
Chance of precipitation: 3%
Sat, Sep 5 Saturday
Sunny
High 84° Low 66°
Chance of precipitation: 1%
Sun, Sep 6 Sunday
Sunny
High 88° Low 69°
Chance of precipitation: 1%
Mon, Sep 7 Monday
Sunny
High 90° Low 72°
Chance of precipitation: 1%
Tue, Sep 8 Tuesday
Partly Cloudy
High 76° Low 66°
Chance of precipitation: 9%

About the weather in San Marino

San Marino runs on a dry-summer rhythm: the warmest months are also the driest. July averages 1.8 inches (46 mm) while the wet season peaks in May at 5.1 inches (130 mm). Highs range from 44°F (6°C) to 82°F (28°C).

San Marino weather: quick facts

  • Hottest month: July - highs near 82°F (28°C)
  • Coldest month: January - highs near 44°F (6°C)
  • Decade extremes (2015-2024): 98°F (37°C) high · 10°F (-12°C) low
  • Wettest month: May (14 rainy days) · Sunniest: July (13.7 h sun/day)
  • Climate type: humid subtropical
  • Annual swing: 20°C between the average warmest and coolest month · day to night: 8°C
  • Snow: about 7 days a year
  • Months with freezing average lows: 1
  • Average humidity: 73%

Temperatures through the year

January is the coolest month, with highs of 44°F (6°C) and lows near 31°F (-1°C). At its warmest, in July, San Marino runs to 82°F (28°C) in the afternoon and back to 63°F (17°C) by dawn. Precipitation concentrates in May - 5.1 inches (130 mm) on 14 days - and thins out by July.

Rain, sun and snow

Average lows drop to freezing in one month of the year, January. July is the brightest month at 13.7 hours of sun a day, against an annual average of 9.5. Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is August through September. Snow falls on roughly 7 days a year, mostly December through March. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 98°F (37°C) and the lowest daily minimum 10°F (-12°C).

Season by season

Spring (March through May)

Through spring, San Marino is mild: 58°F (14°C) by day, 42°F (6°C) after dark, and rain falls on around 36 of the 90 days. Daylight is generous - around 10.3 hours of sun a day.

Summer (June through August)

Summer in San Marino brings comfortable warmth, with daytime highs averaging 79°F (26°C) and nights around 61°F (16°C); expect showers on roughly 25 days across the season. Daylight is generous - around 13.0 hours of sun a day.

Fall (September through November)

Fall in San Marino is crisp but comfortable, with daytime highs averaging 62°F (17°C) and nights around 48°F (9°C); rain falls on around 33 of the 90 days.

Winter (December through February)

Winter stays firmly cold here - highs near 46°F (8°C), nights near 33°F (0°C), and expect showers on roughly 29 days across the season, plus about 6 snowy days.

Average temperatures in San Marino by month

Monthly averages for San Marino based on 2015–2024 weather data.
MonthHighLow Rain daysPrecipitation SunshineHumidity
January 44° 31° 10 3.1 in 6.1 h/day 81%
February 48° 33° 10 3.7 in 7.3 h/day 77%
March 51° 36° 10 3.0 in 9.0 h/day 73%
April 58° 41° 11 2.8 in 10.6 h/day 70%
May 65° 49° 14 5.1 in 11.2 h/day 72%
June 76° 58° 9 2.4 in 13.1 h/day 64%
July 82° 63° 8 1.8 in 13.7 h/day 59%
August 80° 63° 8 2.4 in 12.3 h/day 62%
September 71° 55° 10 3.8 in 10.3 h/day 71%
October 63° 49° 11 4.4 in 8.1 h/day 79%
November 53° 40° 12 4.4 in 6.0 h/day 83%
December 47° 34° 9 2.8 in 5.9 h/day 83%

Explore San Marino's full climate guide →

Common questions

What is the coldest month in San Marino?
January, with highs of 44°F (6°C) and lows near 31°F (-1°C). The coldest day in the 2015-2024 record fell to 10°F (-12°C).
When does it rain most in San Marino?
May, at 5.1 inches (130 mm) over about 14 days. July is the driest month, at 1.8 inches (46 mm).
How humid does San Marino get?
Relative humidity averages 73% across the year, which reads as fairly humid. The most comfortable stretch falls in the drier half of the year.
When should I visit San Marino?
Aim for June to October if you get the choice: the dry season is running but the afternoons are still bearable, and highs average 74°F (23°C) against roughly 9 wet days a month. For the same question asked the other way round, see where else is warm in June.
What is the hottest month in San Marino?
July, averaging 82°F (28°C) by day and 63°F (17°C) overnight. The hottest single day in our 2015-2024 record for this location reached 98°F (37°C).
Is there snow in San Marino?
Yes - about 7 days a year carry measurable snowfall, concentrated December through March.