Hokkaido weather forecast warns of rain and cool weekend temperatures

The Friday, 31 August forecast for Hokkaido calls for unstable atmospheric conditions with scattered showers and brief thunderstorms across central and northern areas. In Sapporo, rain is expected in the late afternoon but should clear before the scheduled Dobson‑UHB fireworks display on the Toyohira River at 7:40 p.m.

Saturday, 1 September, will see rain and strong winds over the southern part of the island, with locally heavy precipitation of up to 50 mm. Sunday, 2 September, is projected to be largely clear, with low humidity under the influence of an Okhotsk Sea high‑pressure system, providing a comfortable heat.

Temperatures remain moderate through the weekend, the highest reading on Friday recorded at 27.8 °C in Teine, Sapporo, while other locations stayed in the mid‑20s.