| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 30.3° | 22° | 124.4mm | 10.8 | 65 |
| February | 30.2° | 22° | 135.5mm | 11.3 | 65 |
| March | 29.2° | 20.8° | 135.5mm | 14.5 | 62 |
| April | 27.1° | 17.8° | 65.7mm | 11.8 | 76 |
| May | 24.4° | 14.3° | 99.7mm | 12.2 | 76 |
| June | 22.2° | 11.8° | 70mm | 10.2 | 80 |
| July | 21.8° | 9.9° | 43mm | 7.2 | 86 |
| August | 22.9° | 10.6° | 49.1mm | 5.3 | 89 |
| September | 25° | 14° | 34mm | 5.5 | 89 |
| October | 26.6° | 17° | 81.4mm | 7 | 86 |
| November | 28.2° | 19.2° | 73.8mm | 7.7 | 80 |
| December | 29.5° | 21.1° | 139.1mm | 9.4 | 71 |
January in Hervey Bay averages a daily high of 30.3°C with nights around 22°C. Expect roughly 10.8 wet days totalling 124.4mm. Generally workable, with some weather to plan around.
February in Hervey Bay averages a daily high of 30.2°C with nights around 22°C. Expect roughly 11.3 wet days totalling 135.5mm. Generally workable, with some weather to plan around.
March in Hervey Bay averages a daily high of 29.2°C with nights around 20.8°C. Expect roughly 14.5 wet days totalling 135.5mm. Generally workable, with some weather to plan around.
April in Hervey Bay averages a daily high of 27.1°C with nights around 17.8°C. Expect roughly 11.8 wet days totalling 65.7mm. Comfortable conditions for being outdoors all day.
May in Hervey Bay averages a daily high of 24.4°C with nights around 14.3°C. Expect roughly 12.2 wet days totalling 99.7mm. Comfortable conditions for being outdoors all day.
June in Hervey Bay averages a daily high of 22.2°C with nights around 11.8°C. Expect roughly 10.2 wet days totalling 70mm. Comfortable conditions for being outdoors all day.
July in Hervey Bay averages a daily high of 21.8°C with nights around 9.9°C. Expect roughly 7.2 wet days totalling 43mm. Comfortable conditions for being outdoors all day.
August in Hervey Bay averages a daily high of 22.9°C with nights around 10.6°C. Expect roughly 5.3 wet days totalling 49.1mm. Comfortable conditions for being outdoors all day.
September in Hervey Bay averages a daily high of 25°C with nights around 14°C. Expect roughly 5.5 wet days totalling 34mm. Comfortable conditions for being outdoors all day.
October in Hervey Bay averages a daily high of 26.6°C with nights around 17°C. Expect roughly 7 wet days totalling 81.4mm. Comfortable conditions for being outdoors all day.
November in Hervey Bay averages a daily high of 28.2°C with nights around 19.2°C. Expect roughly 7.7 wet days totalling 73.8mm. Comfortable conditions for being outdoors all day.
December in Hervey Bay averages a daily high of 29.5°C with nights around 21.1°C. Expect roughly 9.4 wet days totalling 139.1mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Hervey Bay peaks at 89.
Based on 30 years of records, July–October scores highest for comfort in Hervey Bay, balancing daytime temperature against rainfall.
January is the warmest, averaging a daily high of 30.3°C.
December is the wettest, averaging 139.1mm of rain across roughly 9.4 wet days.
July is the coolest month, with average daily highs around 21.8°C.