Onsala, Sweden
Halland · Sweden
Onsala is a small city in Halland, Sweden with a population of 12,486. Elevation: 112 ft (34 m). Average temperature: 45°F (7°C).
Population source: Wikidata (dated census and official estimates), GeoNames. Climate: WorldClim 2.1 normals (1970-2000), NASA POWER. Updated August 2026
Discover Onsala, Sweden
Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
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People
Climate
| Population | 12,486 |
| Population Density | 2,242 / sq mi |
| Elevation | 112 ft (34 m) |
| Coordinates | 57.4253°, 12.0290° |
| Timezone | Europe/Stockholm |
| Country | 🇸🇪 Sweden |
| State / Province | Halland |
| Average Temperature | 45°F (7°C) |
| January Average | 31°F (-1°C) |
| July Average | 61°F (16°C) |
| Annual Precipitation | 30.7 inches (779 mm) |
| Annual Snowfall | 9.7 inches (25 cm) |
About Onsala
Onsala is a small city in Sweden (Halland) with a population of 12,486. The city sits at an elevation of 112 feet (34 meters) above sea level. The average annual temperature is 45°F (7°C). Temperatures range from 31°F in January to 61°F in July. Annual precipitation averages 30.7 inches. The timezone is Europe/Stockholm.
Climate in Onsala
Onsala has an average annual temperature of 9.1°C (48°F). The hottest month is Aug (17.5°C), the coldest is Jan (1.8°C). Average annual precipitation is 1031 mm.
Temperature
| Annual Average | 45.2°F |
| 16% below Sweden avg | |
| January Average | 31°F (-1°C) |
| July Average | 61°F (16°C) |
Geography
| Elevation | 112 ft (34 m) |
| Area | 5.6 sq mi (14.4 km²) |
| Population Density | 2,242/sq mi |
| Coordinates | 57.4253°N, 12.0290°E |
| Timezone | Europe/Stockholm |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 2.7 in | |
| February | 30°F (-1°C) | 1.9 in | Coldest |
| March | 35°F (2°C) | 2.0 in | |
| April | 42°F (5°C) | 1.7 in | Driest |
| May | 51°F (11°C) | 1.9 in | |
| June | 58°F (14°C) | 2.4 in | |
| July | 61°F (16°C) | 2.6 in | Warmest |
| August | 61°F (16°C) | 2.9 in | |
| September | 54°F (12°C) | 3.2 in | Wettest |
| October | 47°F (8°C) | 3.1 in | |
| November | 39°F (4°C) | 3.1 in | |
| December | 34°F (1°C) | 3.1 in |
Onsala has a seasonal temperature swing of 31°F / from 30°F in February to 61°F in July. Total annual precipitation is 30.7 inches, with September being the wettest month (3.2") and April the driest (1.7").
Schools in Onsala
5 public schools (OpenStreetMap data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Presseskolan | - | - | - | - |
| Iseråsskolan | - | - | - | - |
| Kapareskolan | - | - | - | - |
| Fjordskolan | - | - | - | - |
| Onsala Montessoriskola | - | - | - | - |
Radio Stations near Onsala
6 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| Bandit Metal | death metal, hard rock | MP3 128 kbps | |
| Sveriges Radio P4 Göteborg | local radio, music | AAC 128 kbps | |
| Mix Megapol GBG | - | MP3 128 kbps | |
| Spinning Seal FM | - | MP3 | |
| Radio Gbg Sevdah | bosna, sevdah | MP3 128 kbps | |
| SLAY Radio (GB) | - | MP3 128 kbps |
Museums in Onsala
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Askims hembygdsmuseum | ||||
| Båt och Sjöfartsmuseet | ||||
| Brännö Lagård | ||||
| Bua fiskemuseum | ||||
| Hembygdsmuseum | ||||
| Mölndals museum | ||||
| Mölndals museum |
Libraries in Onsala
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Askims Bibliotek | 0.0 | |||||
| Askims Bibliotek | 0.0 | |||||
| Fyren | 0.0 | |||||
| Högsbo Bibliotek | 0.0 | |||||
| Högsbo Bibliotek | 0.0 | |||||
| Kållereds bibliotek | 0.0 | |||||
| Lindome Bibliotek | 0.0 | |||||
| Medicinska biblioteket Mölndal | 0.0 | |||||
| Medicinska biblioteket Mölndal | 0.0 | |||||
| Mölndals Stadsbibliotek, Huvudbiblioteket | 0.0 | |||||
| Mölnlycke bibliotek | 0.0 | |||||
| Varbergs bibliotek Bua | 0.0 | |||||
| Västra Frölunda bibliotek | 0.0 | |||||
| Västra Frölunda bibliotek | 0.0 |
Hotels in Onsala
1 hotels within city radius - OpenStreetMap data
Restaurants in Onsala
2 restaurants within city radius - OpenStreetMap data
Cafes in Onsala
1 cafes within city radius - OpenStreetMap data
Clinics in Onsala
1 clinics within city radius - OpenStreetMap data
Gas Stations in Onsala
2 gas stations within city radius - OpenStreetMap data
Breweries in Onsala
| Name | Type | Address | Phone | Website |
|---|---|---|---|---|
| Beersmiths | ||||
| Beersmiths | ||||
| Byaregårdens Brygghus | ||||
| Göteborgs nya bryggeri | ||||
| Göteborgs nya bryggeri | ||||
| Oceanbryggeriet |
Ski Resorts Near Onsala
3 ski resorts within range.
| Resort | Slopes (km) | Lifts | Peak (m) | Price | Season | Night | Park |
|---|---|---|---|---|---|---|---|
| Trollhöjden | 0.0 | - | - | $0 | - | - | - |
| Brudarebacken | 0.0 | - | - | $0 | - | - | - |
| Alebacken | 0.0 | - | - | $0 | - | - | - |
Airports Near Onsala
10 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Göteborg Landvetter Airport | GOT | Large Airport |
| Säve Airport | GSE | Medium Airport |
| Anholt Airfield | - | Small Airport |
| Duvhed flygfält UL | - | Small Airport |
| Esgrene Field | - | Small Airport |
| Kattleberg Airfield | - | Small Airport |
| Morup Airfield | - | Small Airport |
| Öresten Airfield | - | Small Airport |
| Rödene Airfield | - | Small Airport |
| Varberg Getterön Airfield | - | Small Airport |
Treatment Centers in Onsala
18 treatment centers.
| Center | Type | Phone |
|---|---|---|
| Capio Gastro Center | ||
| Capio Spine Center | ||
| Johannesvården - Vårdcentral och BVC | ||
| Min doktor | ||
| Närhälsan Frölunda barnavårdscentral | ||
| Närhälsan Frölunda rehabmottagning | ||
| Närhälsan Frölunda vårdcentral | ||
| Närhälsan Högsbo barnavårdscentral | ||
| Närhälsan Högsbo vårdcentral | ||
| Närhälsan Krokslätt barnavårdscentral | ||
| Närhälsan Krokslätt vårdcentral | ||
| Närhälsan Opaltorget barnavårdscentral | ||
| Närhälsan Opaltorget vårdcentral | ||
| Närhälsan Sisjön barnavårdscentral | ||
| Närhälsan Sisjön vårdcentral | ||
| Neuropsykiatrimottagning Öster | ||
| Nötkärnan Hovås Askim Familjeläkare och BVC | ||
| Omtanken Vårdcentral Åby |
Churches & Religious Organizations in Onsala
1 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Onsala kyrka |
Quick Facts
🇸🇪 About Sweden
Public Holidays in Sweden
16 public holidays this year
Frequently Asked Questions About Onsala
What is the population of Onsala?
Onsala has a population of 12,486 residents and is located in Sweden. The population density is 2,242 people per square mile, spread across 5.6 square miles.
What is the weather like in Onsala?
Onsala has a cool climate with an average annual temperature of 45°F (7°C). Winter temperatures average 31°F in January, while summers reach an average of 61°F in July. Annual rainfall totals 30.7 inches, with 9.7 inches of snow.
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