Caloundra's January minimum temperature (usually, the lowest temperature recorded during the night) is 21.8°C. The average January rainfall is 143mm. On average, it rains for 8 days. The average daytime temperature is 30.4°C. January is the hottest month. This is the best time to visit Caloundra, which boasts 268 hours of sunshine.
What should you wear in January? Caloundra is a rainy destination so it's important to bring a waterproof rain jacket. It can get very hot or cold so bring shorts or skirts. This is a great time to swim, with a water temperature around 25.0°C.