Surf Wax Temperature Guide: Which Wax for Your Water Temperature

How Surf Wax Temperature Ratings Work

Wax is formulated to achieve optimal tackiness within a specific temperature window. Warmer water requires harder wax that resists melting. Colder water requires softer wax that stays sticky despite low temperatures. The rating refers to the water temperature, not the air temperature.

Using wax outside its rated range means either a melted mess (too soft for conditions) or a slippery, hard surface (too firm for conditions).

Surf Wax Temperature Chart

• Tropical (24°C+ / 75°F+): Hardest formulation. Use in warm tropical waters — Indonesia, Fiji, Pacific Islands.
• Warm (20–24°C / 68–75°F): Medium-hard. Summer conditions in temperate regions like northern NZ.
• Cool (15–20°C / 59–68°F): Medium-soft. The all-rounder for most NZ surfing year-round.
• Cold (below 15°C / 59°F): Softest formulation. Winter conditions and cold-water regions like the South Island.
• Basecoat: Universal temperature. Applied first on a clean board as a foundation. Doesn't change with season.

The cut-offs are 15°C, 20°C and 24°C. If your water sits right on one, try both grades and see which feels tackier in your conditions.

What Wax to Use in New Zealand by Season

• Summer (Dec–Feb): Northland, the Auckland west coast, Raglan and the Bay of Plenty run 18–21°C = Cool in December, Warm from January. Wellington 15–17°C = Cool. Christchurch 14–16°C = Cool on the warmer days, otherwise Cold. Dunedin 13–14°C = Cold.
• Autumn (Mar–May): The northern North Island is 19–21°C in March (Warm), easing to 17–18°C by May (Cool). Wellington 14–16°C = Cool, turning Cold. The South Island 11–15°C = Cold.
• Winter (Jun–Aug): Northland, the Auckland west coast and the Bay of Plenty hold about 15–17°C, so Cool wax still works there. Raglan, Gisborne and Taranaki dip to 13–15°C = Cold in the coldest weeks. Wellington 12–13°C and the South Island 9–11°C = Cold.
• Spring (Sep–Nov): The north warms from about 15°C to 19°C = Cool. Wellington 12–14°C and the South Island 9–12°C stay Cold. Check the chart for your spot and month.

Up north, Cool covers most of the year, with Warm from about January to April. Further south, Cold does most of the work, with Cool in the warmer months around Wellington and Christchurch.

Basecoat vs Topcoat Explained

Basecoat is a hard, universal wax applied to a clean board to create a bumpy texture foundation. Topcoat is the temperature-specific wax that provides actual grip, applied over basecoat. You only need to re-apply basecoat when you do a full strip — topcoat gets refreshed regularly.

Signs You're Using the Wrong Temperature Wax

Wax melts, smears, or goes transparent in the sun = wax too soft (go harder). Wax feels hard, glossy, and has no tack = wax too hard (go softer). Wax cracks or flakes off = wax degraded or far outside its range. Board feels slippery even after fresh application = temperature mismatch or missing basecoat.

See month-by-month water temperatures for NZ, Australia and the USA in our surf wax temperature chart.