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Sisjön

Welcome to Sisjön, a stunning dive site situated in Mölndal, Västra Götaland County, Sweden. This picturesque location offers an unforgettable diving experience for all levels of divers, especially beginners.

To reach this remarkable dive site, simply park your vehicle in the provided parking lot. From there, take a leisurely 350-meter stroll to the lake's edge. During the summer months, an outhouse is conveniently available for your use.

Once you arrive at the beach, make your entry into the crystal-clear, fresh water from the jetty. The underwater world of Sisjön is teeming with a diverse range of aquatic life, including crayfish, European perch, eel, northern pike, common roach, and rainbow trout. Keep your eyes peeled as you explore the depths of this enchanting site.

If you're looking for a dive spot that combines beauty and ease, the sandy bottom beneath and outside the jetty is ideal. Whether you're embarking on a course or training dive, you'll appreciate the forgiving nature of this sandy terrain. Within the vicinity of the jetty, you may encounter a stump, a sign, and some tree branches, which serve as hiding spots for crayfish. As you venture further away from the jetty, the bottom transitions to a silty texture, with a decrease in marine life.

When exploring Sisjön, expect a visibility of approximately 6 meters, allowing for clear observations of the underwater wonders. With a maximum depth of 8 meters, this dive site provides a comfortable and safe environment for beginners to gain confidence and skills.

Visit Sisjön in Sweden, and immerse yourself in the extraordinary beauty of this dive site. Plan your diving adventure today, and create unforgettable memories in this captivating underwater paradise.

Diving Conditions Score for Sisjön

5.5
Average

Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Sisjön

Depth

8m

Visibility

6m

Experience Level

beginner

Weather Conditions for Sisjön

Wave Height

0.4m

Wind Speed

10.1 m/s

Water Temp

17.4°C

Visibility

7.46km

Cloud Cover

100%

Wave Period

3.05s

Air Temperature

18.7°C

Precipitation

0.2 mm

Detailed 7-Day Diving Forecast for Sisjön
Alpha

Dive Score Chart for Sisjön

Best time to dive: 17:00 with score 7.049378531073446/10. Water conditions: Waves 0.4m, Wind 13.7 m/s.Best night dive time: 23:00 with score 7.013638461538461/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Sisjön: 06:00
Sunset at Sisjön: 18:00

Optimal diving conditions at Sisjön are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.

🌞
Best Overall
17:00

Score: 7.0/10
Waves: 0.4m (2.95s), Wind: 13.7 m/s

🌞
Safest Overall
8:00

Score: 7.0/10
Waves: 0.48m (3.2s), Wind: 16.2 m/s

🌙
Best Night
23:00

Score: 7.0/10
Waves: 0.36m, Wind: 5.4 m/s

Seasonal Analysis for Sisjön
Alpha

Historical patterns and best seasons for diving at Sisjön

The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.

Monthly Dive Score Analysis - Seasonal Diving Conditions

Higher values indicate better diving conditions

Seasonal DiveScore Chart

This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.

Higher values indicate better diving conditions

Best Season for Sisjön

Winter

Avg. Score: 8.2/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for Sisjön

December
Score: 8.6
January
Score: 8.3
March
Score: 7.9

Ideal Conditions for Sisjön

Water Temp

Thermometer Emoji

16.6°C / 61.9°F

July

Visibility

Telescope Emoji

16.0m / 52.5ft

December

Wave Height

Wave Emoji

0.7m / 2.3ft

December

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Sisjön

Sisjön shows typical northern hemisphere patterns with July being the warmest month (16.6°C) and December the coldest (-4.2°C). The calmest conditions typically occur in December with average wave heights of 0.7m and wave periods of 8.0s. The most comfortable wave conditions are in December with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). March is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during December to February, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 18, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

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