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Weather & Climate in San Bernardino, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Bernardino enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 38°F in January while summers reach 78°F in July. The area gets 301 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 39.7 inches. The area receives 9.3 inches of snow annually. The city sits at an elevation of 1,348 feet.
Temperature
38°F Jan (3°C)
78°F Jul (25°C)
| Annual Average | 56.8°F |
| 5% above US avg | |
| January Average | 38°F (3°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 1,348 ft (411 m) |
| Area | 11.1 sq mi (28.8 km²) |
| Population Density | 66/sq mi |
| Coordinates | 45.0363°N, 7.3969°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
2,403 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Apr 11, 2003 | 1 km SSW of Carezzano Maggiore, Italy | M5.0 | 121 km | 4 km |
| Aug 21, 2000 | 1 km WNW of Oviglio, Italy | M4.9 | 87 km | 10 km |
| Oct 31, 1997 | 12 km SE of Seyne-les-Alpes, France | M4.8 | 112 km | 10 km |
| Apr 7, 2014 | 7 km SE of Guillestre, France | M4.8 | 73 km | 8 km |
| Jul 18, 2001 | 3 km S of Masio, Italy | M4.7 | 82 km | 0 km |
| Jan 20, 1994 | 1 km NE of Melle, Italy | M4.6 | 52 km | 10 km |
| Feb 11, 1991 | 5 km ESE of Briançon, France | M4.6 | 58 km | 14 km |
| Jul 17, 1993 | 0 km NNW of Calice Ligure, Italy | M4.5 | 116 km | 5 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 136 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 115 km | 3 km |
| Oct 3, 2012 | 2 km N of Melle, Italy | M4.5 | 51 km | 10 km |
| Mar 2, 2012 | 8 km NNW of Jausiers, France | M4.5 | 82 km | 10 km |
| Apr 19, 2009 | 1 km ENE of Bandito, Italy | M4.5 | 49 km | 40 km |
| Jul 17, 1993 | 0 km NNE of Calice Ligure, Italy | M4.4 | 116 km | 5 km |
| Nov 21, 1995 | 1 km SW of Collegno, Italy | M4.4 | 13 km | 22 km |
| Jul 25, 2011 | 5 km NW of Cantalupa, Italy | M4.4 | 11 km | 25 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 126 km | 10 km |
| Sep 22, 2022 | 3 km SW of Bargagli, Italy | M4.4 | 148 km | 10 km |
| Apr 21, 1995 | 4 km ESE of Menton, France | M4.4 | 142 km | 26 km |
| Jan 20, 1994 | 1 km SW of Melle, Italy | M4.3 | 54 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 10.0 m (33 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1979 | FRENCH RIVIERA (LIGURIAN SEA) | Meteorological | 10.0 m | 9 | 149 km |
| 1968 | LIGURIA-COTE D'AZUR | Earthquake | 3.0 m | — | 117 km |
| 1564 | LIGURIA-COTE D'AZUR | Eruption + Earthquake | — | 650 | 114 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 1.8 in | |
| February | 39°F (4°C) | 1.8 in | |
| March | 45°F (7°C) | 2.1 in | |
| April | 50°F (10°C) | 3.4 in | |
| May | 58°F (14°C) | 4.4 in | Wettest |
| June | 65°F (18°C) | 3.4 in | |
| July | 78°F (25°C) | 2.1 in | Warmest |
| August | 69°F (21°C) | 3.0 in | |
| September | 62°F (17°C) | 3.0 in | |
| October | 53°F (12°C) | 3.5 in | |
| November | 43°F (6°C) | 2.3 in | |
| December | 38°F (3°C) | 1.8 in | Coldest, Driest |
San Bernardino has a seasonal temperature swing of 40°F / from 38°F in December to 78°F in July. Total annual precipitation is 32.5 inches, with May being the wettest month (4.4") and December the driest (1.8").