Portland 2024 Climate Summary
Portland's weather tells a compelling story across the seasons. The temperature and rainfall patterns provide valuable insight into what to expect throughout the year.
Temperature extremes span from 7.4°C up to 22.2°C, with a notable 7.5°C difference between the warmest and coldest periods.
Rainfall patterns show Nov as the wettest month with 91mm, while Feb receives just 5mm. Annual rainfall totals 649mm, spread across an average of 117 rain days.
Portland runs 1.9°C cooler than the Victoria average. The 649mm annual rainfall aligns closely with regional patterns.
Understanding these patterns helps determine the best times to visit Portland. Whether you prefer warm dry conditions or milder temperatures, Portland'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 Portland's climate.
Climate Analysis
The temperature data for Portland reveals clear seasonal patterns. The annual average maximum is 17.9°C, while the average minimum is 11.1°C. This 6.8°C range demonstrates the city's seasonal temperature variation.
Rainfall Pattern
Monthly rainfall distribution throughout Portland showing wet and dry season patterns.
Annual rainfall totals 649mm, 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 | 21.2 | 14.6 | 71 | 12 | 22.7 | 60% |
| February | 22.2 | 13.5 | 5 | 2 | 23.6 | 50% |
| March | 21.9 | 13.7 | 14 | 4 | 17.6 | 51% |
| April | 16.9 | 11.3 | 54 | 13 | 9.8 | 58% |
| May | 15.9 | 9.7 | 23 | 6 | 8.5 | 63% |
| June | 13.2 | 7.6 | 37 | 7 | 6.4 | 62% |
| July | 13.0 | 7.4 | 84 | 13 | 7.1 | 62% |
| August | 16.2 | 9.4 | 70 | 13 | 10.2 | 59% |
| September | 14.8 | 10.0 | 90 | 17 | 11.8 | 59% |
| October | 17.7 | 10.4 | 68 | 12 | 19.1 | 56% |
| November | 19.8 | 12.0 | 91 | 11 | 21.2 | 57% |
| December | 21.5 | 13.2 | 41 | 7 | 24.2 | 53% |