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Izu surf beneath the Shirahama Shrine torii on Daimyoji rock
Conditions forecast

Izu Peninsula, Shimoda

Japan · Part of Tokyo

Updated recently

As of 12:00 GMT+9 on 12 October 2026, Izu Peninsula, Shimoda scores 21/100 (Poor) for surf on PeakWave.

Wind
Surf · Today’s score · Poor
21/100

Wind: limiting. Gusts: ideal.

Swell
1.5 m
7 s · E
Wind
45 km/h
Cross-onshore
Tide
Rising
Approximate timing
Water
20.4 °C
⚠ Gale-force wind: Gale-force wind: limiting. Shown separately from the conditions score.
  • Strong wind: Strong wind: limiting. Shown separately from the conditions score.
  • Jellyfish: Peak season
  • Rip risk elevated
Main limiter
Wind
Strongest positive
Gusts

PeakWave scores are planning signals, not safety clearance. Check local authorities, official bulletins and on-site conditions before you go. Read our editorial policy.

What matters for this session

Read the swell size, period and direction together with the wind at the beach. The tide chart below adds timing context for this break.

Today's forecast

Local time 12:26pm

Session recommendations are unavailable while safety or forecast evidence is incomplete or a red flag is active.

12am
☀️
Dark
1am
☀️
Dark
2am
☀️
Dark
3am
☀️
Dark
4am
☀️
Dark
5am
☀️
Dark
6am
☀️
19
Flat
1.4m · 7s
↙ 41 km/h
20.4°C water
7am
☀️
18
Flat
1.3m · 7s
↙ 42 km/h
20.4°C water
8am
☀️
16
Flat
1.3m · 7s
↙ 44 km/h
20.4°C water
9am
☀️
15
Flat
1.2m · 7s
↙ 45 km/h
20.4°C water
10am
☀️
16
Flat
1.2m · 7s
↙ 42 km/h
20.4°C water
11am
☀️
16
Flat
1.2m · 7s
↙ 41 km/h
20.4°C water
12pm
☀️
18
Flat
1.2m · 7s
↙ 38 km/h
20.4°C water
1pm
☀️
20
Poor
1.3m · 7s
↙ 35 km/h
20.4°C water
2pm
☀️
20
Poor
1.3m · 7s
↙ 34 km/h
20.4°C water
3pm
☀️
21
Poor
1.4m · 7s
↙ 33 km/h
20.4°C water
4pm
☀️
23
Poor
1.4m · 7s
↙ 32 km/h
20.4°C water
5pm
☀️
23
Poor
1.4m · 7s
↙ 33 km/h
20.4°C water
6pm
☀️
Dark
7pm
☀️
Dark
8pm
☀️
Dark
9pm
🌤️
Dark
10pm
☀️
Dark
11pm
☀️
Dark

Tide

Approximate model

Heights relative to mean sea level

Best on mid-high tide

5am8pm
High 17:17+0.5 m
Low 10:54-0.8 m
6:00amsunrise6:00pmsunset

Next 7 days

Forecast via Open-Meteo
Today
12 Oct
🌤️
21/100
1.5 m swell · 7 s
Wind 45 km/h
empty
Midweek
Red safety flag
Tomorrow
13 Oct
🌤️
43/100
1.5 m swell · 7 s
Wind 36 km/h
empty
Midweek
Caution
Wed
14 Oct
🌧️
42/100
1.2 m swell · 8 s
Wind 36 km/h
empty
Midweek
Caution
Thu
15 Oct
🌤️
28/100
1.2 m swell · 6 s
Wind 36 km/h
empty
Midweek
Fri
16 Oct
☁️
44/100
1.1 m swell · 6 s
Wind 11 km/h
empty
Friday
Caution
Best conditions
Sat
17 Oct
☁️
25/100
1.1 m swell · 6 s
Wind 20 km/h
quiet
Saturday
Caution
Sun
18 Oct
☁️
20/100
1.0 m swell · 6 s
Wind 24 km/h
quiet
Sunday

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Frequently asked questions

How often is this page updated?

Each location is refreshed every three hours. The hourly view, 7-day forecast, luck factor and packing notes come from the same stored update.

What is the luck factor?

We compare the 7-day forecast with the version-matched historical observations available for the same time of year at Izu Peninsula. The delta shows whether conditions look better, worse or about the same as a typical mid-October.

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?

Partly. The model uses stored spot geometry, swell ranges and tide preferences where configured. It cannot see changing banks, crowds, access, closures or everything visible on a local cam, so treat it as a starting point.

When is the best time for Surf at Izu Peninsula?

The best week for surf at Izu Peninsula is the week of 2 November (score 3/5) with low crowds.