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Porters NZ rainthin

1302–1980 m · mid 1641 m · Pacific/Auckland

37 T 35 F 27 S 12 S 5 M 11 T 17 W 25 T

today 37 · median 21

15 cm in the last 72h at mid mountain, falling near freezing at an average of -2°C. 1 mm of rain on snow in the last 7 days, a crust remains near the surface. Next 72h: little additional snow, next 7d 1 snow day, 2 slush days, 4 icy days. Base coverage is still thin below 1,302 m.

today → 7 days

date rating grade regime snow rain min / max
2026-09-17 37 fair snow 15.0 cm 1.2 mm -5.3 / 2.7 °C
2026-09-18 35 fair icy 0.0 cm 0.0 mm -8.8 / 4.7 °C
2026-09-19 27 poor slush 0.3 cm 0.5 mm -2.1 / 4.8 °C
2026-09-20 12 poor icy 0.4 cm 0.5 mm -7.2 / 4.6 °C
2026-09-21 5 poor icy 0.0 cm 0.0 mm -3.9 / 5.2 °C
2026-09-22 11 poor slush 1.3 cm 1.8 mm -4.9 / 3.8 °C
2026-09-23 17 poor cold 2.2 cm 0.0 mm -8.8 / -0.3 °C
2026-09-24 25 poor icy 0.0 cm 0.0 mm -7.4 / 1.3 °C

Ski-day snow is last night 18:00 through today 18:00. Today is scored as-of now; future days use first chair. Default board sort is the eight-day median.

today's components

freshness 16/35

  • effective fresh snow: 13.5 cm
  • 24h / 72h / 7d: 15 / 15 / 15 cm

preservation 8/25

  • rain penalty: −2
  • crust penalty: −10
  • wind penalty: −0
  • icy (day thaw / night freeze): −0
  • slush (above freezing day+night): −0
  • warm yesterday: −5

base 4/15

  • modeled settled base: 25 cm
  • needed: 100 cm
  • weather-derived proxy, not a resort measurement

bands

band elev temp 24h 72h freezing level wind
base 1302 m -2.3°C 10.0 cm 10.0 cm -372 m below 5 km/h
mid 1641 m -4.5°C 14.9 cm 14.9 cm -711 m below 5 km/h
top 1980 m -6.7°C 19.0 cm 19.0 cm -1050 m below 5 km/h

14-day charts

Daily snowfall at mid (solid = past, outline = forecast)
-9°
Daily temperature range at mid with 0°C line