Norfolk Island in August

October through April delivers Norfolk's prime weather. Temperatures hover between 18-25°C with minimal rainfall. December and January get busy with Australian summer holidays — book early or expect crowds. February and March offer the sweet spot: warm weather with fewer tourists. April brings slightly cooler temperatures but still pleasant for swimming and outdoor activities. May through September sees more rain and cooler temperatures around 15-20°C. But winter has its perks — accommodation costs drop, and you'll have beaches mostly to yourself. The island's subtropical climate means you can visit year-round. Just pack layers for winter months when evening temperatures can dip into the low teens.