Main image

edited by Frokor CC BY-SA 4.0 Wikimedia Commons

Hisøya

Island

An island beside Arendal in Agder, Hisøya attracts boaters and day-trippers for beaches, coastal walks, summer cottages and views over the Skagerrak coastline.

Hisøya KristiansandDomkirkenByglandsfjordenFlekkerøyHisøya

Hisøya essentials

Admission: Free

About Hisøya

Hisøya is an island in Agder county, Norway, located immediately south of the town of Arendal and forming part of Arendal municipality. The island is primarily residential and is closely connected to the town across the harbour.

Local roads and bridges link the island to the mainland, and it functions as a suburban area within the Arendal urban zone. The landscape combines built-up neighbourhoods with shoreline areas and small wooded or agricultural parcels.

Historically the island has hosted settlements linked to maritime and local industries; over time it has become more residential as Arendal expanded. Present-day amenities and services are integrated with those of the nearby town.

Geographically it sits in the coastal archipelago of southern Norway, immediately adjacent to Arendal town centre and visible across the harbour from the town’s waterfront.

Things to Do
When to Go

Best Time to Visit Hisøya

Best visited in summer for easy boat access and to experience island culture at its liveliest.

Summer (Jun-Aug)
June-August · 12-20°C (54-68°F)
Island life peaks; calm seas and long daylight are best for boating and exploring.
Late Spring / Early Autumn (May & Sep)
May, September · 8-14°C (46-57°F)
Fewer visitors, good for walking and birdwatching; some facilities may be closed.

Weather & Climate near Hisøya

Climate

Hisøya's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -5°C to 20°C. Abundant rainfall (1019 mm/year), wettest in October.

Air Quality: AQI 24 Good
Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
27°
Warmest Month
-14°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -4° - 1° -7° 94 mm overcast 93% 5.0 m/s 0.0 low 6.9h
February Poor -5° - 1° -7° 58 mm overcast 92% 4.8 m/s 0.1 low 9.1h
March Poor -2° - 5° -3° 73 mm overcast 88% 4.7 m/s 0.3 low 11.6h
April Good 2° - 9° 2° 48 mm partly cloudy 82% 4.5 m/s 0.6 moderate 14.2h
May Good 6° - 15° 11° 61 mm partly cloudy 79% 4.4 m/s 1.0 high 16.6h
June Good 10° - 18° 14° 61 mm partly cloudy 78% 4.3 m/s 1.4 high 17.9h
July Very Good 12° - 20° 16° 67 mm partly cloudy 81% 4.2 m/s 1.3 high 17.2h
August Good 12° - 19° 15° 87 mm partly cloudy 83% 4.1 m/s 0.9 moderate 15.1h
September Good 8° - 15° 12° 124 mm overcast 85% 4.6 m/s 0.5 low 12.6h
October Poor 5° - 11° 5° 135 mm overcast 88% 4.7 m/s 0.2 low 10.0h
November Poor 0° - 5° -1° 124 mm overcast 91% 4.7 m/s 0.0 low 7.6h
December Poor -3° - 2° -5° 87 mm overcast 92% 4.7 m/s 0.0 low 6.2h
Getting There & Around

How to Get to Hisøya

Hisøya is reachable from Arendal (Aust-Agder). Local roads and short ferry crossings connect the island to the mainland; check Arendal municipal transport and local ferry operators for current schedules.

Tips for Visiting Hisøya

  • If using public transport from Arendal, check ferry or local bus schedules - some routes run seasonally.
  • Explore the coastal path toward the old wooden churches and watch for seabird colonies on the rocky points.
  • Bring binoculars for views of the skerries and fishing boats at dawn.