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Shonan — Kugenuma
Kanagawa, Japan35.3°N
Shonan — Kugenuma in Kanagawa, Japan has water temperatures ranging from 15.7°C in March to 27.5°C in August. In the warmer months, you can get away with just boardshorts or a bikini. In March, you’ll need a 4/3mm fullsuit. Boots are recommended for 3 months of the year.
Use the discipline switcher below to see how recommendations change across different sports — a kitesurfer at Shonan — Kugenuma needs different rubber than a surfer.
Discipline
Monthly conditions & gear
Based on average conditions for Surfing. Personal preferences may shift your recommendation — use the full tool for a personalized result.
| Month | Water | Air | Wind | Suit | Boots | Gloves | Hood |
|---|---|---|---|---|---|---|---|
| January | 16.5°C | 10.8°C | 23 km/h | 4/3mm | 3mm | — | — |
| February | 15.7°C | 11.3°C | 25 km/h | 4/3mm | 3mm | — | — |
| March | 15.7°C | 14.6°C | 26 km/h | 4/3mm | 3mm | — | — |
| April | 17.2°C | 19.3°C | 25 km/h | 3/2mm | — | — | — |
| May | 18.8°C | 21.9°C | 25 km/h | 3/2mm | — | — | — |
| June | 22°C | 26.1°C | 21 km/h | 2mm | — | — | — |
| July | 25.7°C | 30.9°C | 21 km/h | 2mm | — | — | — |
| August | 27.5°C | 32°C | 22 km/h | None | — | — | — |
| September | 26.5°C | 29.5°C | 22 km/h | None | — | — | — |
| October | 23.9°C | 22.8°C | 22 km/h | 2mm | — | — | — |
| November | 21.1°C | 17.5°C | 22 km/h | 2mm | — | — | — |
| December | 18.6°C | 13.2°C | 20 km/h | 3/2mm | — | — | — |
Recommendations based on industry-validated thresholds from 15 brands and independent sources. Read the methodology
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Our guides provide general recommendations based on industry consensus and average conditions. Always check local forecasts and use your own judgment. rubber.surf is not liable for any discomfort or equipment decisions based on these suggestions. Read our full terms.