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Athanasius Soter CC BY-SA 4.0 Wikimedia Commons

Kassari

Island

Kassari, part of Hiiu County, sits off Hiiumaa with sandy beaches, low hills and country roads. Cyclists, birdwatchers and small‑scale beachgoers visit manor houses, coastal paths and quiet fishing hamlets.

Kassari TallinnTartuPärnuKassari
In this guide

Kassari essentials

Address: Kassari (island/village), Hiiumaa, Hiiu County, Estonia
Hours: Open year-round
Admission: Free (no formal entrance fee)
When to Go

Best Time to Visit Kassari

Visit Kassari in summer (June-August) for the warmest weather, long daylight and fullest access to outdoor activities.

Summer (best time)
June-August · 15-22°C
Warmest weather, long daylight and best conditions for cycling, beaches and exploring Kassari's coastal landscape.
Spring / Autumn
May / September-October · 0-12°C
Cooler and quieter with fewer visitors; some services may have reduced hours outside peak summer.
Winter
November-April · -5-2°C
Cold, short days and possible snow limit outdoor activities and some ferry or service availability.

Weather & Climate near Kassari

Climate

Kassari's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in February). Temperatures range from -6°C to 21°C. Moderate rainfall (614 mm/year).

Air Quality: AQI 24 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
29°
Warmest Month
-21°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -4° - 0° -8° 39 mm overcast 91% 5.3 m/s 0.0 low 6.9h
February Poor -6° - -1° -9° 30 mm overcast 92% 4.8 m/s 0.1 low 9.1h
March Poor -4° - 2° -6° 31 mm overcast 89% 4.3 m/s 0.3 low 11.6h
April Acceptable 1° - 7° 1° 32 mm partly cloudy 85% 4.3 m/s 0.6 moderate 14.2h
May Good 6° - 14° 10° 37 mm partly cloudy 81% 4.2 m/s 1.1 high 16.6h
June Very Good 11° - 18° 14° 39 mm partly cloudy 80% 4.1 m/s 1.3 high 17.9h
July Very Good 14° - 21° 18° 60 mm partly cloudy 78% 3.9 m/s 1.3 high 17.2h
August Very Good 14° - 20° 17° 69 mm partly cloudy 78% 3.8 m/s 0.9 moderate 15.1h
September Acceptable 10° - 15° 12° 75 mm overcast 82% 4.6 m/s 0.5 low 12.6h
October Acceptable 5° - 10° 4° 71 mm overcast 85% 5.0 m/s 0.1 low 10.0h
November Poor 1° - 5° -1° 75 mm overcast 89% 5.4 m/s 0.0 low 7.6h
December Poor -2° - 1° -6° 56 mm overcast 90% 5.3 m/s 0.0 low 6.2h
Getting There & Around

How to Get to Kassari

Kassari is an island belonging to Hiiu County off Hiiumaa (Estonia). It is reached by road from the main Hiiumaa town of Kärdla via the island’s local roads and the causeway/bridges that link Kassari to the main island (a short drive from Kärdla; local driving distances on Hiiumaa are typically within a few to a couple of dozen kilometres).

On Hiiumaa you can reach Kassari by car, bicycle or local bus services from Kärdla; from the bus or roadside parking you typically have only a short walk to points of interest on Kassari.

Tips for Visiting Kassari

  • Access Kassari by road from Hiiumaa (the island's main island) - the small causeway/road connections make Kassari easy to reach by car or bicycle from Kärdla, Hiiumaa's main town.
  • Plan your visit for the summer months when the coastal meadows and sandy bays are most accessible; many visitors miss the quieter eastern shoreline coves, so take the smaller local roads or cycle routes to explore them.