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Sumba — Nihiwatu
East Nusa Tenggara, Indonesia9.7°S
Sumba — Nihiwatu in East Nusa Tenggara, Indonesia has water temperatures ranging from 26.2°C in July to 28°C in January — relatively stable year-round. In the warmer months, you can get away with just boardshorts or a bikini. This is a reef spot — reef boots or rubber socks are recommended year-round.
Use the discipline switcher below to see how recommendations change across different sports — a kitesurfer at Sumba — Nihiwatu 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 | 28°C | 30°C | 17 km/h | None | — | — | — |
| February | 27.7°C | 29.4°C | 19 km/h | None | — | — | — |
| March | 27.4°C | 28.8°C | 21 km/h | None | — | — | — |
| April | 27.1°C | 28.2°C | 22 km/h | None | — | — | — |
| May | 26.8°C | 27.6°C | 21 km/h | None | — | — | — |
| June | 26.5°C | 27°C | 19 km/h | None | — | — | — |
| July | 26.2°C | 26.4°C | 17 km/h | None | — | — | — |
| August | 26.5°C | 27°C | 14 km/h | None | — | — | — |
| September | 26.8°C | 27.6°C | 13 km/h | None | — | — | — |
| October | 27.1°C | 28.2°C | 12 km/h | None | — | — | — |
| November | 27.4°C | 28.8°C | 13 km/h | None | — | — | — |
| December | 27.7°C | 29.4°C | 14 km/h | None | — | — | — |
Recommendations based on industry-validated thresholds from 15 brands and independent sources. Read the methodology
Reef spot
Sumba — Nihiwatuhas reef. Reef boots or rubber socks are recommended to protect your feet from sharp coral and sea urchins — even in warm water when you don't need a wetsuit.
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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.