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Ahern State Park

Ahern State Park, located in the picturesque Lakes Region of New Hampshire, is a pristine 128-acre state-protected area nestled along the shores of Lake Winnisquam. Offering a wide range of recreational activities both above and below the water, this year-round destination is a haven for divers, hikers, boaters, bikers, and fishing enthusiasts alike.

When you arrive, follow the road all the way down to the beach area where ample parking is available. As you prepare for your dive, you'll be greeted by a breathtaking underwater world teeming with a diverse array of marine life. From graceful fish to elusive crabs and even freshwater snails, be prepared for a captivating exploration of this aquatic habitat.

One of the highlights of diving at Ahern State Park is the ease of entry. Simply walk in from the beach, and you'll find yourself immersed in crystal-clear waters with visibility up to 5 meters. The maximum depth of the dive site reaches 10 meters, offering a suitable environment for both beginner and advanced divers.

Located in the United States, specifically in Laconia, New Hampshire, Ahern State Park is a conveniently accessible dive site for locals and tourists alike. Its close proximity to North Main Street, Mallard Cove, and Belknap County makes it an ideal destination for individuals seeking an unforgettable underwater adventure.

Experience the beauty and wonders that lie beneath the surface at Ahern State Park. Whether you're a novice diver looking to embark on your first underwater exploration or an experienced diver seeking new depths to conquer, this remarkable dive site promises an unforgettable experience.

Diving Conditions Score for Ahern State Park

5.8
Average

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

Dive Site Overview for Ahern State Park

Depth

10m

Visibility

5m

Experience Level

beginner
advanced

Weather Conditions for Ahern State Park

Wave Height

1m

Wind Speed

19.8 m/s

Water Temp

18°C

Visibility

15.5km

Cloud Cover

12%

Wave Period

8s

Air Temperature

20.5°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Ahern State Park
Alpha

Dive Score Chart for Ahern State Park

Best time to dive: 8:00 with score 7.453333333333333/10. Water conditions: Waves 1m, Wind 5.4 m/s.Best night dive time: 1:00 with score 7.008833333333333/10.

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

Sunrise at Ahern State Park: 06:00
Sunset at Ahern State Park: 18:00

Optimal diving conditions at Ahern State Park 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
8:00

Score: 7.5/10
Waves: 1m (8s), Wind: 5.4 m/s

🌙
Best Night
1:00

Score: 7.0/10
Waves: 1m, Wind: 4.8 m/s

Seasonal Analysis for Ahern State Park
Alpha

Historical patterns and best seasons for diving at Ahern State Park

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 Ahern State Park

Winter

Avg. Score: 9.9/10

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

Best Months for Ahern State Park

January
Score: 10.0
February
Score: 9.9
December
Score: 9.8

Ideal Conditions for Ahern State Park

Water Temp

Thermometer Emoji

24.4°C / 75.9°F

June

Visibility

Telescope Emoji

20.1m / 65.9ft

October

Wave Height

Wave Emoji

0.2m / 0.7ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Ahern State Park

Ahern State Park shows typical northern hemisphere patterns with June being the warmest month (24.4°C) and December the coldest (20.4°C). The calmest conditions typically occur in January with average wave heights of 0.2m and wave periods of 8.0s. The most comfortable wave conditions are in January 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). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, 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 19, 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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