MARINE REPORT / 72 HOURS

Manuel Antonio Snorkel Report Today

Costa Rica · Updated Fri 18:29 (CST) · Source: Snapshot

The skinny

Poor Data updated Fri 18:29 (CST)

Manuel Antonio has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Fri 20:00 (CST)

Later today

No fresh data for this period.

Next three days

Good · 5.8/10

Mon 09:00 (CST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

05:24

Sunset

17:18

Water

30.4°C

Max air

26.0°C

Sky

Cloudy

99% cloud

Good model window in the next 72 hours

Next good model window: Mon 06:00–09:00 (6% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Friday

❌ Poor conditions

Main blocker: Waves

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Mon 06:00 and lasts until 09:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Tide/current (62 hours)
  • Sea temperature (35 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: Sat 06:00

Sat 06:00, Sat 19:00, Sun 07:00, Sun 20:00, Mon 08:00

Nearby alternatives in Costa Rica

Caño Island

81 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Fri 20:00 – Mon 20:00 (CST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.45 around Sat 09:00; 12 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 1.2m to 1.48m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.11 to 2.74m/s).

Tides range from -0.1m to 1.48m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
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
Fair ⚠️ Fair
Poor ❌ Limited
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Fri 21:00 1.20 · high 0.65 · good 30.40 · good Poor
Fri 22:00 1.22 · high 0.60 · good 30.40 · good Poor
Fri 23:00 1.22 · high 0.15 · good 30.30 · good Poor
Sat 00:00 1.24 · high 1.45 · good 30.30 · good Poor
Sat 01:00 1.24 · high 1.19 · good 30.20 · good Poor
Sat 02:00 1.26 · high 0.11 · good 30.20 · good Poor
Sat 03:00 1.26 · high 0.15 · good 30.10 · good Poor
Sat 04:00 1.26 · high 0.22 · good 30.10 · good Poor
Sat 05:00 1.28 · high 0.32 · good 30.10 · good Poor
Sat 06:00 1.28 · high 0.65 · good 30.10 · good Fair
Sat 07:00 1.30 · high 1.01 · good 30.20 · good Fair
Sat 08:00 1.30 · high 0.72 · good 30.30 · good Fair
Sat 09:00 1.32 · high 0.55 · good 30.40 · good Fair
Sat 10:00 1.34 · high 1.26 · good 30.60 · out of range Fair
Sat 11:00 1.34 · high 2.27 · good 30.70 · out of range Fair
Sat 12:00 1.36 · high 2.74 · good 30.80 · out of range Fair
Sat 13:00 1.38 · high 2.00 · good 30.80 · out of range Fair
Sat 14:00 1.40 · high 1.10 · good 30.80 · out of range Fair
Sat 15:00 1.42 · high 0.47 · good 30.70 · out of range Fair
Sat 16:00 1.44 · high 1.14 · good 30.70 · out of range Fair
Sat 17:00 1.44 · high 1.80 · good 30.60 · out of range Fair
Sat 18:00 1.46 · high 0.64 · good 30.60 · out of range Poor
Sat 19:00 1.46 · high 0.81 · good 30.50 · out of range Poor
Sat 20:00 1.48 · high 1.57 · good 30.50 · out of range Poor
Sat 21:00 1.48 · high 0.75 · good 30.40 · good Poor
Sat 22:00 1.50 · high 0.57 · good 30.40 · good Poor
Sat 23:00 1.50 · high 0.40 · good 30.40 · good Poor
Sun 00:00 1.52 · high 0.16 · good 30.30 · good Poor
Sun 01:00 1.52 · high 0.38 · good 30.30 · good Poor
Sun 02:00 1.54 · high 0.60 · good 30.20 · good Poor
Sun 03:00 1.54 · high 0.74 · good 30.20 · good Poor
Sun 04:00 1.54 · high 0.58 · good 30.20 · good Poor
Sun 05:00 1.54 · high 0.46 · good 30.20 · good Poor
Sun 06:00 1.54 · high 0.54 · good 30.20 · good Fair
Sun 07:00 1.54 · high 1.01 · good 30.20 · good Fair
Sun 08:00 1.54 · high 1.33 · good 30.30 · good Fair
Sun 09:00 1.54 · high 1.12 · good 30.50 · out of range Fair
Sun 10:00 1.54 · high 1.10 · good 30.60 · out of range Fair
Sun 11:00 1.52 · high 2.25 · good 30.70 · out of range Fair
Sun 12:00 1.52 · high 3.26 · good 30.80 · out of range Fair
Sun 13:00 1.52 · high 2.58 · good 30.80 · out of range Poor
Sun 14:00 1.52 · high 0.94 · good 30.80 · out of range Fair
Sun 15:00 1.52 · high 1.70 · good 30.70 · out of range Fair
Sun 16:00 1.52 · high 1.53 · good 30.70 · out of range Fair
Sun 17:00 1.52 · high 0.52 · good 30.60 · out of range Fair
Sun 18:00 1.52 · high 0.71 · good 30.60 · out of range Poor
Sun 19:00 1.52 · high 0.70 · good 30.50 · out of range Poor
Sun 20:00 1.50 · high 0.65 · good 30.50 · out of range Poor
Sun 21:00 1.50 · high 0.16 · good 30.50 · out of range Poor
Sun 22:00 1.48 · high 0.61 · good 30.50 · out of range Poor
Sun 23:00 1.48 · high 0.46 · good 30.40 · good Poor
Mon 00:00 1.46 · high 0.92 · good 30.40 · good Poor
Mon 01:00 1.46 · high 0.38 · good 30.40 · good Poor
Mon 02:00 1.46 · high 0.11 · good 30.40 · good Poor
Mon 03:00 1.46 · high 0.36 · good 30.40 · good Poor
Mon 04:00 1.44 · high 0.34 · good 30.30 · good Poor
Mon 05:00 1.44 · high 0.35 · good 30.30 · good Poor
Mon 06:00 1.42 · high 0.78 · good 30.40 · good Good
Mon 07:00 1.42 · high 0.71 · good 30.40 · good Good
Mon 08:00 1.40 · high 0.94 · good 30.60 · out of range Good
Mon 09:00 1.40 · high 1.13 · good 30.70 · out of range Good
Mon 10:00 1.40 · high 0.86 · good 30.80 · out of range Fair
Mon 11:00 1.40 · high 1.73 · good 30.90 · out of range Fair
Mon 12:00 1.40 · high 1.99 · good 31.00 · out of range Fair
Mon 13:00 1.40 · high 2.29 · good 31.00 · out of range Fair
Mon 14:00 1.38 · high 0.43 · good 31.00 · out of range Fair
Mon 15:00 1.38 · high 0.57 · good 31.00 · out of range Fair
Mon 16:00 1.38 · high 0.29 · good 30.90 · out of range Fair
Mon 17:00 1.36 · high 0.47 · good 30.90 · out of range Fair