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Onsala
Tjolöholms kyrka
Tjolöholms kyrka
Mårtagården
Mårtagården
Vallda metodistkapell
Vallda metodistkapell
Särö Church
Särö Church
Halland, Sweden

Onsala

Onsala is a small town in Halland, Sweden, close to the sea. It has a population of about 12,486 (2023). The climate is classified as oceanic (Köppen Cfb), with rain spread through the year and no real dry season.

Now11°C
Best timeJun–Aug
Population12,486
Local time20:10
57.43° N, 12.03° EElevation 34 mUTC+2 · Central European Summer Time
Postal codes439 00, 439 20 …
The year in Onsalaweather score
JanFebMarAprMayJunJulAugSepOctNovDec26October
October: high / low11° / 7°
Rain this month102mm
Sea this month12°
Best timeJun–Aug

Best: Jun–Aug. Warmth, sunshine and dry days, month by month.

Onsala at a glance

Best time to visitJun–Aug

The months with the highest weather score

Warmest month22°C

Average high in July

Coolest month-1°C

Average low in January

Wettest monthAugust

91 mm of rain

Driest monthApril

51 mm of rain

Warmest sea18°C

August

Monuments nearby10+

within 14 km

Weather in Onsala

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
11°C

Rain · wind 18 km/h · humidity 86%

Today hour by hour
Today22 Oct12°9°6.7 mm
Fri23 Oct12°8°5.4 mm
Sat24 Oct13°9°1.9 mm
Sun25 Oct13°8°19.6 mm
Mon26 Oct12°9°12.7 mm
Tue27 Oct13°10°2.5 mm
Wed28 Oct14°10°7.9 mm
Thu29 Oct14°11°2.4 mm
Fri30 Oct12°9°
Sat31 Oct10°7°

When to go to Onsala

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score152024345765666557261615
High2°3°5°11°16°19°22°21°17°11°7°4°
Low-1°-2°0°3°8°12°14°14°11°7°3°0°
Rain (mm)8158605157788991811028886
Wet days161212111314161815171717
Sea3°2°3°6°11°15°18°18°16°12°8°5°

What's on in Onsala

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Onsala

All monuments

Outdoors around Onsala

Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.

Things to do
Åsa Camping och HavsbadCamp sites
0.4 km
Vallda Golf & Country ClubGolf courses
0.7 km
Rörviks campingCamp sites
0.9 km
Forsgårdens GolfklubbGolf courses
2.4 km
BrudarebackenSki area · 1 lifts
31 km
Dive site
15 km

Nature around Onsala

Nature in Sweden

Wildlife in October

The birds and mammals of Sweden seen most this month, compared with the rest of their year.

The sky over Onsala

Eclipses and meteor showers

Towns and villages around Onsala

Each with its own page: weather, climate and the best time to visit.

Onsala from above

Postal codes

439 00439 20439 21439 22439 23439 24439 25439 26439 30439 31439 32439 33439 34439 35439 36439 37439 91439 92439 93439 94

Getting to Onsala

Göteborg Landvetter AirportGOT
30 km
Halmstad AirportHAD
95 km
Trollhättan-Vänersborg AirportTHN
101 km
KungsbackaRailway station
7.8 km
ÅsaRailway station
9.4 km
HedeRailway station
10 km
VrångöDonsö · Kårholmen
22 km
KårholmenDonsö · Vrångö
24 km

Places near Onsala

Places with a climate like Onsala

Matched month by month on temperature, rain and sunshine.

Frequently asked questions

When is the best time to visit Onsala?
Based on 30-year climate normals, June, July and August offer the best balance of comfortable temperatures, low rainfall and sunshine in Onsala.
What is the hottest month in Onsala?
July is the warmest month, with average highs of 22°C and lows of 14°C.
What is the coldest month in Onsala?
January is the coldest month, with average highs of 2°C and lows of -1°C.
What is the rainiest month in Onsala?
August is the wettest month with about 91 mm of precipitation on 18 wet days.
How warm is the sea near Onsala?
The sea is warmest in August at about 18°C and coolest in February at about 2°C.
What is the postal code of Onsala?
Onsala has 20 postal codes: 439 00, 439 20, 439 21, 439 22, 439 23, 439 24, 439 25, 439 26, 439 30, 439 31, 439 32, 439 33 ….