Izu Peninsula
Japan · Japan
Right now
Partly cloudyWind and swell direction
Swell: 0.8m E
Wind: 7 km/h NNW (cross-offshore)
Beach faces: E
Very light wind. Expect glassy, clean conditions.
Swell is arriving at a great angle for this beach.
Today hour by hour
Updated 08:33Expected crowds
Prediction model v15amDawn patrol territory
7amMidweek quiet
Next 7 days
Forecast via Open-MeteoWhat to pack
- Warm 20°C water. Shortie or boardshorts.
- Strong winds on some days. Check the forecast each morning.
- Standard shortboard conditions.
Today's briefing
1.1m swell at 7s. Onshore wind creating some chop. Water temperature 21°C.
AI-generated summary for Izu Peninsula. Always check local reports before heading out.
Forecast accuracy at Izu Peninsula
Not enough data yet. Log a session to help build the accuracy score.
Best time to go
No great windows in the next 2 days
Best available option is Today around 5am (score: 18). Conditions are below the Good threshold but may still be surfable.
Crowd report
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Session journal
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Create free accountTide
Approximate modelBest on mid-high tide
Swell forecast
7-day forecastDaily score breakdown
This week is looking slightly above average for late April.
Comparing the 7-day forecast to the last 5 years of marine data for the same week at Izu Peninsula.
What's driving it
Recent form
Last 3 days of logged conditions.
About Izu Peninsula
The Izu Peninsula, specifically focusing on beaches like Tatadohama and Shirahama, features picturesque, accessible beach breaks located south-west of Tokyo. The bathymetry consists of expansive, gently sloping gradients of fine white sand within sheltered coves. Facing primarily south, these beaches capture moderate southerly wind swells and heavily refracted Pacific typhoon energy. A northerly offshore wind is required to groom the frequently chaotic sea state into clean faces. Because the wave energy is heavily attenuated before reaching the shore and breaks over a gentle slope, the resulting waves are soft, slow-rolling, and lack steepness. These highly forgiving mechanics make the Izu Peninsula an idyllic location for beginner surfers and longboarders. It provides a safe, low-consequence environment free from severe currents or heavy impact zones, allowing novices to comfortably practice fundamental balance and wave-catching skills away from the heavier coastal breaks.
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Create Profile →Frequently asked questions
How often is this page updated?
Current conditions refresh every 6 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
What is the luck factor?
We compare the 7-day forecast to the last 5 years of marine data for the same week at Izu Peninsula. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late April.
How is 'best session' picked?
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Where does the data come from?
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Does the score capture local knowledge?
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
When is the best time to surf Izu Peninsula?
Check our timing score heatmap above for a week-by-week breakdown combining surf conditions with crowd pressure.