Climate Insights for Hervey Bay

The climate in Hervey Bay is warm and mild. The average annual temperature is 18°C and approximately 183mm of precipitation falls per year. September is the wettest month, receiving around 33mm of rainfall. Hervey Bay is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, May. The coldest months are April, December, March, when temperatures can drop to 12°C.

Hervey Bay sees moderate temperature variation throughout the year, ranging from 12°C to 31°C. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 25°C. April is the coolest month, with minimum temperatures around 12°C and an average of 15°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between February and March, with a 7°C shift in average temperatures.

Hervey Bay is a quite dry location, receiving approximately 183mm of precipitation annually, which averages out to around 15mm per month. The wettest month is May, averaging 33mm of rainfall. June and August also tend to see above-average precipitation. The driest month is February, with just 0mm. That's 33mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Hervey Bay is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 8km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 4km/h in spring, 4km/h in summer, 6km/h in autumn.

It is currently winter in Hervey Bay, which began on June 21, 2026. Hervey Bay is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 31°C, while the coldest stretch bottoms out in April near 12°C. Spring is next, beginning on September 23, 2026 — 18 days from now.

The best time to visit Hervey Bay is during January, February, May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 18mm per month. By contrast, April can be quite cold with temperatures dropping to 12°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Hervey Bay based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.