St Helens 2024 Climate Summary
The climate of St Helens reveals interesting patterns when examined month by month. From temperature swings to rainfall distribution, each season brings its own character.
The temperature profile shows a range from 5.3°C lows in the coldest months to 23.5°C highs in summer, creating a seasonal temperature swing of 9.4°C.
Nov brings the heaviest precipitation at 158mm, contrasting sharply with Mar's mere 35mm. The city receives 921mm annually over approximately 100 rain days.
Compared to the Tasmania average, St Helens is 1.4°C warmer. Its annual rainfall of 921mm is typical of the region's climate patterns.
Understanding these patterns helps determine the best times to visit St Helens. Whether you prefer warm dry conditions or milder temperatures, St Helens's climate offers distinct seasonal advantages throughout the year.
Note on methodology: this page summarises 2024 observations only. Long-record climate trend analysis drawn from ACORN-SAT (1910 to present) is in development. For context on multi-decade change, see the BOM State of the Climate report.
Temperature Profile
Monthly maximum and minimum temperature ranges showing seasonal variation in St Helens's climate.
Climate Analysis
The temperature data for St Helens reveals clear seasonal patterns. The annual average maximum is 17.8°C, while the average minimum is 9.6°C. This 8.2°C range demonstrates the city's seasonal temperature variation.
Rainfall Pattern
Monthly rainfall distribution throughout St Helens showing wet and dry season patterns.
Annual rainfall totals 921mm, distributed across the calendar year. The distribution pattern shows distinct wet and dry periods that influence local climate conditions.
Climate Summary Table
Complete monthly climate averages including temperature, precipitation, solar radiation, and humidity data.
| Month | Max °C | Min °C | Rain mm | Rain Days | Solar MJ | Humidity % |
|---|---|---|---|---|---|---|
| January | 22.3 | 13.9 | 41 | 8 | 21.8 | 51% |
| February | 23.5 | 13.1 | 80 | 6 | 22.4 | 45% |
| March | 21.5 | 12.1 | 35 | 6 | 16.7 | 48% |
| April | 18.0 | 9.3 | 70 | 4 | 11.2 | 52% |
| May | 15.3 | 8.2 | 81 | 12 | 7.7 | 61% |
| June | 12.6 | 6.2 | 79 | 4 | 5.7 | 64% |
| July | 12.1 | 5.3 | 125 | 11 | 6.6 | 64% |
| August | 15.0 | 8.3 | 61 | 10 | 9.5 | 62% |
| September | 15.2 | 7.5 | 87 | 11 | 13.4 | 52% |
| October | 17.2 | 8.2 | 56 | 7 | 19.5 | 48% |
| November | 19.1 | 10.8 | 158 | 14 | 18.4 | 54% |
| December | 22.1 | 12.1 | 49 | 7 | 25.2 | 46% |