Diano Castello, Italy

Full City Profile

1.9 /5.0

D Poor

1,554 Population 444/sq mi density

443 ft Elevation 135 meters

54°F Avg Temperature 12°C

Overall

1.9 / 5.0

Below average overall score based on economy, affordability, safety and education

Economy

1.9 / 5.0

$20,541 median income, 11.2% unemployment

Diano Castello experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 39°F in January while summers reach 70°F in July. The area gets 317 sunny days per year. Annual precipitation totals 34.2 inches. The area receives 14.9 inches of snow annually.

Temperature

39°F Jan (4°C) 70°F Jul (21°C)

Annual Average	53.6°F
	1% below US avg
January Average	39°F (4°C)
July Average	70°F (21°C)
Sunny Days	317 days/yr

Geography

Elevation	443 ft (135 m)
Area	3.5 sq mi (9.1 km²)
Population Density	444/sq mi
Coordinates	43.9242°N, 8.0660°W
Timezone	Europe/Rome

Precipitation & Snow

Annual Rainfall 34.2"

10% below US avg

Snowfall 14.9"

Wettest Month (Oct) 4.49"

Driest Month (Jul) 0.67"

Air Quality

Earthquake History

2,049 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.0. Most recent: M2.5 on Mar 20, 2025.

Apr 11, 2003	1 km SSW of Carezzano Maggiore, Italy	M5.0	117 km
Apr 18, 2005	2 km WSW of Marsaglia, Italy	M4.9	134 km
Aug 21, 2000	1 km WNW of Oviglio, Italy	M4.9	110 km
Apr 7, 2014	7 km SE of Guillestre, France	M4.8	132 km
Oct 31, 1997	12 km SE of Seyne-les-Alpes, France	M4.8	133 km
Jul 18, 2001	3 km S of Masio, Italy	M4.7	105 km
Mar 5, 2012	3 km NNW of Santo Stefano d'Aveto, Italy	M4.7	131 km
Feb 25, 2001	28 km SSE of Saint-Jean-Cap-Ferrat, France	M4.6	71 km
Mar 14, 2001	34 km SSE of San Lorenzo al Mare, Italy	M4.6	40 km
Jan 20, 1994	1 km NE of Melle, Italy	M4.6	93 km
Oct 3, 2012	2 km N of Melle, Italy	M4.5	95 km
Apr 16, 2020	2 km SE of Marsaglia, Italy	M4.5	137 km
Mar 2, 2012	8 km NNW of Jausiers, France	M4.5	125 km
Jul 17, 1993	0 km NNW of Calice Ligure, Italy	M4.5	37 km
Apr 19, 2009	1 km ENE of Bandito, Italy	M4.5	91 km
Feb 24, 1997	36 km SE of Cervo, Italy	M4.5	39 km
Nov 21, 1995	1 km SW of Collegno, Italy	M4.4	134 km
Apr 21, 1995	4 km ESE of Menton, France	M4.4	45 km
Jul 17, 1993	0 km NNE of Calice Ligure, Italy	M4.4	37 km
Jul 25, 2011	5 km NW of Cantalupa, Italy	M4.4	133 km

Source: USGS (M2.5+, 1990–2025)

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	70 km
1968	LIGURIA-COTE D'AZUR	Earthquake	3.0 m	—	18 km
1564	LIGURIA-COTE D'AZUR	Eruption + Earthquake	—	650	64 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	39°F (4°C)	2.6 in	Coldest
February	47°F (9°C)	2.3 in
March	51°F (10°C)	2.4 in
April	54°F (12°C)	3.0 in
May	62°F (16°C)	2.2 in
June	68°F (20°C)	1.5 in
July	70°F (21°C)	0.7 in	Driest
August	74°F (23°C)	1.4 in	Warmest
September	68°F (20°C)	3.0 in
October	61°F (16°C)	4.5 in	Wettest
November	53°F (11°C)	3.7 in
December	48°F (9°C)	2.9 in

Diano Castello has a seasonal temperature swing of 35°F / from 39°F in January to 74°F in August. Total annual precipitation is 30.2 inches, with October being the wettest month (4.5") and July the driest (0.7").

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