SnorkelForecast.com

Silfra Snorkel Report Today

Iceland · Updated Tue 04:16 (GMT) · Source: Snapshot

The skinny

Marginal Report Tue 18:04

Silfra looks marginal today. The least-bad daylight window is around Thu 22:00, but waves is limiting the forecast.

Score: 0.0/10

Best time: Thu 22:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Tue 19:00 (Poor). Peak afternoon wind is about 1.8 m/s.

Email me when it is good

Sunrise

03:55

Sunset

23:05

Water

-

Max air

12.5°C

Sky

Cloudy

100% cloud

No safe 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

Tuesday

❌ poor conditions

Main blocker: Waves

Wednesday

❌ poor conditions

Main blocker: Waves

Thursday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Thu 22:00 — Poor (0.00) · still limited by waves, sea temperature
  • Thu 21:00 — Poor (0.00) · still limited by waves, sea temperature
  • Thu 20:00 — Poor (0.00) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (57 hours)
  • Sea temperature (57 hours)
  • Darkness (14 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 historical data

Mon 18:00 – Thu 18:00 (GMT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Mon 18:00; 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 12/24 sampled hours (range 3.7 to 6.4m/s).

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

72-hour historical overview
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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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 18:00 · high 5.40 · good · out of range poor
Mon 19:00 · high 5.90 · high · out of range poor
Mon 20:00 · high 6.40 · high · out of range poor
Mon 21:00 · high 6.20 · high · out of range poor
Mon 22:00 · high 4.90 · good · out of range poor
Mon 23:00 · high 4.90 · good · out of range poor
Tue 00:00 · high 6.30 · high · out of range poor
Tue 01:00 · high 5.90 · high · out of range poor
Tue 02:00 · high 5.70 · high · out of range poor
Tue 03:00 · high 4.90 · good · out of range poor
Tue 04:00 · high 5.40 · good · out of range poor
Tue 05:00 · high 5.60 · high · out of range poor
Tue 06:00 · high 6.40 · high · out of range poor
Tue 07:00 · high 6.10 · high · out of range poor
Tue 08:00 · high 4.90 · good · out of range poor
Tue 09:00 · high 4.90 · good · out of range poor
Tue 10:00 · high 4.10 · good · out of range poor
Tue 11:00 · high 3.70 · good · out of range poor
Tue 12:00 · high 4.17 · good · out of range poor
Tue 13:00 · high 4.37 · good · out of range poor
Tue 14:00 · high 5.00 · good · out of range poor
Tue 15:00 · high 5.48 · high · out of range poor
Tue 16:00 · high 5.46 · high · out of range poor
Tue 17:00 · high 5.41 · high · out of range poor
Tue 18:00 · high 6.07 · high · out of range poor
Tue 19:00 · high 6.49 · high · out of range poor
Tue 20:00 · high 7.06 · high · out of range poor
Tue 21:00 · high 6.56 · high · out of range poor
Tue 22:00 · high 6.98 · high · out of range poor
Tue 23:00 · high 7.01 · high · out of range poor
Wed 00:00 · high 7.28 · high · out of range poor
Wed 01:00 · high 7.07 · high · out of range poor
Wed 02:00 · high 7.70 · high · out of range poor
Wed 03:00 · high 8.39 · high · out of range poor
Wed 04:00 · high 9.28 · high · out of range poor
Wed 05:00 · high 9.21 · high · out of range poor
Wed 06:00 · high 9.31 · high · out of range poor
Wed 07:00 · high 7.90 · high · out of range poor
Wed 08:00 · high 7.90 · high · out of range poor
Wed 09:00 · high 7.60 · high · out of range poor
Wed 10:00 · high 8.60 · high · out of range poor
Wed 11:00 · high 8.10 · high · out of range poor
Wed 12:00 · high 7.80 · high · out of range poor
Wed 13:00 · high 7.80 · high · out of range poor
Wed 14:00 · high 7.60 · high · out of range poor
Wed 15:00 · high 7.50 · high · out of range poor
Wed 16:00 · high 7.30 · high · out of range poor
Wed 17:00 · high 6.60 · high · out of range poor
Wed 18:00 · high 6.80 · high · out of range poor
Wed 19:00 · high 5.60 · high · out of range poor
Wed 20:00 · high 5.20 · good · out of range poor
Wed 21:00 · high 5.10 · good · out of range poor
Wed 22:00 · high 4.30 · good · out of range poor
Wed 23:00 · high 4.30 · good · out of range poor
Thu 00:00 · high 4.00 · good · out of range poor
Thu 01:00 · high 3.90 · good · out of range poor
Thu 02:00 · high 3.30 · good · out of range poor
Thu 03:00 · high 2.40 · good · out of range poor
Thu 04:00 · high 1.20 · good · out of range poor
Thu 05:00 · high 1.60 · good · out of range poor
Thu 06:00 · high 2.80 · good · out of range poor
Thu 07:00 · high 3.70 · good · out of range poor
Thu 08:00 · high 2.50 · good · out of range poor
Thu 09:00 · high 2.60 · good · out of range poor
Thu 10:00 · high 2.60 · good · out of range poor
Thu 11:00 · high 3.30 · good · out of range poor
Thu 12:00 · high 2.80 · good · out of range poor
Thu 13:00 · high 2.30 · good · out of range poor
Thu 14:00 · high 3.00 · good · out of range poor
Thu 15:00 · high 3.70 · good · out of range poor
Thu 16:00 · high 3.10 · good · out of range poor
Thu 17:00 · high 3.10 · good · out of range poor