SnorkelForecast.com

Silfra Snorkel Report Today

Iceland · Updated Tue 19:59 (GMT) · Source: Snapshot

The skinny

Marginal Report Tue 23:21

Silfra looks marginal today. The least-bad daylight window is around Fri 18:00, but waves is limiting the forecast.

Score: 0.0/10

Best time: Fri 18:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:10

Sunset

20:38

Water

-

Max air

10.6°C

Sky

Cloudy

98% cloud

No good model window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Wednesday

❌ Poor conditions

Main blocker: Waves

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Fri 18:00: Poor (0.00) · still limited by waves, sea temperature
  • Fri 17:00: Poor (0.00) · still limited by waves, sea temperature
  • Fri 16:00: Poor (0.00) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (67 hours)
  • Sea temperature (67 hours)
  • Darkness (27 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 6/100

Low drift risk now.

local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Nearby alternatives in Iceland

No nearby alternatives available.

Advanced forecast data

Viewing current forecast

Tue 23:00 – Fri 23:00 (GMT)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.0 around Wed 00:00; 0 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

No wave-height trend data is available for the next 24 hours yet.

Wind is at or below 5.4m/s in 21/24 sampled hours (range 0.8 to 6.9m/s).

No tide trend data is available for the next 24 hours yet.

72-hour forecast overview
Poor ❌ Limited
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Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 00:00 · high 1.00 · good · out of range Poor
Wed 01:00 · high 0.80 · good · out of range Poor
Wed 02:00 · high 1.40 · good · out of range Poor
Wed 03:00 · high 1.70 · good · out of range Poor
Wed 04:00 · high 1.20 · good · out of range Poor
Wed 05:00 · high 1.00 · good · out of range Poor
Wed 06:00 · high 1.00 · good · out of range Poor
Wed 07:00 · high 0.80 · good · out of range Poor
Wed 08:00 · high 3.40 · good · out of range Poor
Wed 09:00 · high 3.50 · good · out of range Poor
Wed 10:00 · high 3.40 · good · out of range Poor
Wed 11:00 · high 3.40 · good · out of range Poor
Wed 12:00 · high 3.20 · good · out of range Poor
Wed 13:00 · high 4.00 · good · out of range Poor
Wed 14:00 · high 4.00 · good · out of range Poor
Wed 15:00 · high 4.70 · good · out of range Poor
Wed 16:00 · high 4.80 · good · out of range Poor
Wed 17:00 · high 4.70 · good · out of range Poor
Wed 18:00 · high 2.40 · good · out of range Poor
Wed 19:00 · high 2.30 · good · out of range Poor
Wed 20:00 · high 4.40 · good · out of range Poor
Wed 21:00 · high 6.00 · high · out of range Poor
Wed 22:00 · high 6.80 · high · out of range Poor
Wed 23:00 · high 6.90 · high · out of range Poor
Thu 00:00 · high 6.00 · high · out of range Poor
Thu 01:00 · high 5.70 · high · out of range Poor
Thu 02:00 · high 4.20 · good · out of range Poor
Thu 03:00 · high 5.10 · good · out of range Poor
Thu 04:00 · high 4.70 · good · out of range Poor
Thu 05:00 · high 4.60 · good · out of range Poor
Thu 06:00 · high 6.30 · high · out of range Poor
Thu 07:00 · high 7.50 · high · out of range Poor
Thu 08:00 · high 7.10 · high · out of range Poor
Thu 09:00 · high 8.50 · high · out of range Poor
Thu 10:00 · high 8.10 · high · out of range Poor
Thu 11:00 · high 7.60 · high · out of range Poor
Thu 12:00 · high 8.70 · high · out of range Poor
Thu 13:00 · high 6.40 · high · out of range Poor
Thu 14:00 · high 7.20 · high · out of range Poor
Thu 15:00 · high 6.10 · high · out of range Poor
Thu 16:00 · high 6.00 · high · out of range Poor
Thu 17:00 · high 3.60 · good · out of range Poor
Thu 18:00 · high 3.10 · good · out of range Poor
Thu 19:00 · high 2.70 · good · out of range Poor
Thu 20:00 · high 1.60 · good · out of range Poor
Thu 21:00 · high 2.10 · good · out of range Poor
Thu 22:00 · high 1.60 · good · out of range Poor
Thu 23:00 · high 1.20 · good · out of range Poor
Fri 00:00 · high 0.96 · good · out of range Poor
Fri 01:00 · high 1.15 · good · out of range Poor
Fri 02:00 · high 1.24 · good · out of range Poor
Fri 03:00 · high 1.48 · good · out of range Poor
Fri 04:00 · high 1.63 · good · out of range Poor
Fri 05:00 · high 1.68 · good · out of range Poor
Fri 06:00 · high 1.57 · good · out of range Poor
Fri 07:00 · high 1.88 · good · out of range Poor
Fri 08:00 · high 2.03 · good · out of range Poor
Fri 09:00 · high 2.07 · good · out of range Poor
Fri 10:00 · high 1.95 · good · out of range Poor
Fri 11:00 · high 3.18 · good · out of range Poor
Fri 12:00 · high 3.89 · good · out of range Poor
Fri 13:00 · high 3.83 · good · out of range Poor
Fri 14:00 · high 3.70 · good · out of range Poor
Fri 15:00 · high 3.71 · good · out of range Poor
Fri 16:00 · high 3.49 · good · out of range Poor
Fri 17:00 · high 3.71 · good · out of range Poor
Fri 18:00 · high 3.83 · good · out of range Poor