Climate Overview
The climate in Palmerston is temperate. The average annual temperature is 11°C and approximately 856mm of precipitation falls per year. Palmerston receives a notable amount of rainfall throughout the year, including during its driest month. Palmerston 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: February, January, December. The coldest months are July, August, June, when temperatures can drop to 5°C.
Temperature
Palmerston sees moderate temperature variation throughout the year, ranging from 5°C to 18°C. February is the warmest month, though highs remain moderate at 18°C with a mean of 15°C. July is the coolest month, with minimum temperatures around 5°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.
Precipitation
Palmerston is a moderately rainy area, receiving approximately 856mm of precipitation annually, which averages out to around 71mm per month. The wettest month is November, averaging 107mm of rainfall. January and February also tend to see above-average precipitation. The driest month is June, with just 38mm. That's 70mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Palmerston is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
89 days until Spring
It is currently winter in Palmerston, which began on June 21, 2026. Palmerston 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 February at around 18°C, while the coldest stretch bottoms out in July near 5°C. Spring is next, beginning on September 23, 2026 — 89 days from now.
Spring
Temperatures range from 7 to 15°C. Precipitation is moderate at around 234mm for the season, averaging 78mm per month. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 12 to 18°C. Precipitation is moderate at around 281mm for the season, averaging 94mm per month. Winds are generally light, averaging 5km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 8 to 16°C. Precipitation is moderate at around 194mm for the season, averaging 65mm per month. Winds are generally light, averaging 5km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 5 to 10°C. Rainfall is relatively light, with around 146mm over the season and a monthly average of 49mm. Winds are generally light, averaging 4km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Palmerston 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.
