SnorkelForecast.com

Manuel Antonio Snorkel Report Today

Costa Rica · Updated Tue 04:14 (CST) · Source: Snapshot

The skinny

Marginal Report Tue 09:03

Manuel Antonio looks marginal today. The least-bad daylight window is around Tue 11:00, but waves is limiting the forecast.

Score: 4.2/10

Best time: Tue 11:00

Main risk: Waves

Best morning signal: Tue 11:00 (Fair).

Best afternoon signal: Tue 12:00 (Fair). Peak afternoon wind is about 1.9 m/s.

Email me when it is good

Sunrise

05:25

Sunset

18:00

Water

30.5°C

Max air

30.3°C

Sky

Cloudy

75% 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

⚠️ fair conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Tue 17:00 — Fair (0.42) · still limited by waves, sea temperature
  • Tue 18:00 — Fair (0.40) · still limited by waves, sea temperature
  • Tue 16:00 — Fair (0.40) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (60 hours)
  • Tide/current (60 hours)
  • Darkness (28 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; 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.

Upcoming high tides

Next early morning high tide: Wed 14:00

Wed 02:00, Wed 14:00, Thu 03:00, Thu 15:00

Nearby alternatives in Costa Rica

Caño Island

81 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Tue 15:00 – Fri 15:00 (CST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.48 around Wed 08:00; 11 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.

0/24 sampled hours stay at or below 0.36m (range 1.0m to 1.12m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.2 to 2.15m/s).

Tides range from -0.83m to 1.88m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
Tue 15:00 1.12 · high 0.52 · good 30.60 · out of range fair
Tue 16:00 1.12 · high 1.22 · good 30.70 · out of range fair
Tue 17:00 1.12 · high 1.41 · good 30.80 · out of range poor
Tue 18:00 1.12 · high 2.15 · good 30.90 · out of range fair
Tue 19:00 1.12 · high 0.40 · good 30.90 · out of range fair
Tue 20:00 1.10 · high 0.39 · good 30.90 · out of range fair
Tue 21:00 1.10 · high 1.20 · good 30.80 · out of range fair
Tue 22:00 1.10 · high 1.87 · good 30.80 · out of range fair
Tue 23:00 1.10 · high 2.15 · good 30.70 · out of range fair
Wed 00:00 1.10 · high 1.77 · good 30.70 · out of range poor
Wed 01:00 1.10 · high 0.20 · good 30.60 · out of range poor
Wed 02:00 1.08 · high 0.96 · good 30.60 · out of range poor
Wed 03:00 1.08 · high 0.92 · good 30.60 · out of range poor
Wed 04:00 1.08 · high 0.81 · good 30.50 · out of range poor
Wed 05:00 1.06 · high 0.38 · good 30.50 · out of range poor
Wed 06:00 1.06 · high 0.40 · good 30.50 · out of range poor
Wed 07:00 1.04 · high 0.55 · good 30.30 · good poor
Wed 08:00 1.02 · high 0.50 · good 30.30 · good poor
Wed 09:00 1.02 · high 0.36 · good 30.20 · good poor
Wed 10:00 1.02 · high 0.78 · good 30.20 · good poor
Wed 11:00 1.02 · high 0.25 · good 30.20 · good poor
Wed 12:00 1.02 · high 0.54 · good 30.20 · good fair
Wed 13:00 1.02 · high 0.76 · good 30.30 · good fair
Wed 14:00 1.00 · high 0.65 · good 30.40 · good fair
Wed 15:00 1.00 · high 1.38 · good 30.60 · out of range fair
Wed 16:00 1.00 · high 1.41 · good 30.70 · out of range fair
Wed 17:00 0.98 · high 1.59 · good 30.80 · out of range fair
Wed 18:00 0.98 · high 2.33 · good 30.90 · out of range poor
Wed 19:00 0.98 · high 2.15 · good 30.90 · out of range poor
Wed 20:00 0.98 · high 1.15 · good 30.90 · out of range poor
Wed 21:00 0.98 · high 0.57 · good 30.90 · out of range fair
Wed 22:00 0.98 · high 0.51 · good 30.80 · out of range fair
Wed 23:00 0.98 · high 0.93 · good 30.80 · out of range fair
Thu 00:00 0.98 · high 1.48 · good 30.70 · out of range poor
Thu 01:00 0.98 · high 1.80 · good 30.70 · out of range poor
Thu 02:00 0.98 · high 0.75 · good 30.60 · out of range poor
Thu 03:00 0.98 · high 0.50 · good 30.60 · out of range poor
Thu 04:00 0.98 · high 0.81 · good 30.50 · out of range poor
Thu 05:00 0.98 · high 1.91 · good 30.40 · good poor
Thu 06:00 0.98 · high 1.33 · good 30.40 · good poor
Thu 07:00 0.98 · high 0.72 · good 30.30 · good poor
Thu 08:00 0.98 · high 0.94 · good 30.30 · good poor
Thu 09:00 0.98 · high 1.10 · good 30.20 · good poor
Thu 10:00 0.98 · high 0.76 · good 30.20 · good poor
Thu 11:00 1.00 · high 0.90 · good 30.20 · good poor
Thu 12:00 1.00 · high 1.05 · good 30.20 · good fair
Thu 13:00 1.00 · high 0.96 · good 30.30 · good fair
Thu 14:00 1.00 · high 1.13 · good 30.40 · good fair
Thu 15:00 1.00 · high 0.56 · good 30.50 · out of range fair
Thu 16:00 1.00 · high 0.61 · good 30.60 · out of range fair
Thu 17:00 1.02 · high 1.16 · good 30.70 · out of range poor
Thu 18:00 1.02 · high 1.99 · good 30.80 · out of range poor
Thu 19:00 1.02 · high 1.70 · good 30.80 · out of range fair
Thu 20:00 1.02 · high 0.50 · good 30.80 · out of range fair
Thu 21:00 1.02 · high 1.10 · good 30.80 · out of range poor
Thu 22:00 1.02 · high 0.94 · good 30.70 · out of range fair
Thu 23:00 1.04 · high 0.89 · good 30.70 · out of range fair
Fri 00:00 1.04 · high 0.86 · good 30.70 · out of range poor
Fri 01:00 1.04 · high 1.73 · good 30.60 · out of range poor
Fri 02:00 1.04 · high 1.67 · good 30.60 · out of range poor
Fri 03:00 1.04 · high 0.27 · good 30.60 · out of range poor
Fri 04:00 1.04 · high 1.04 · good 30.50 · out of range poor
Fri 05:00 1.04 · high 1.57 · good 30.50 · out of range poor
Fri 06:00 1.04 · high 1.42 · good 30.40 · good poor
Fri 07:00 1.04 · high 0.92 · good 30.40 · good poor
Fri 08:00 1.06 · high 0.83 · good 30.30 · good poor
Fri 09:00 1.06 · high 1.17 · good 30.30 · good poor
Fri 10:00 1.06 · high 1.03 · good 30.30 · good poor
Fri 11:00 1.08 · high 0.72 · good 30.20 · good poor
Fri 12:00 1.08 · high 1.17 · good 30.20 · good fair
Fri 13:00 1.08 · high 0.74 · good 30.20 · good fair
Fri 14:00 1.10 · high 1.55 · good 30.30 · good fair