Climate Overview
The climate in Milford Sound Airport is cool. The average annual temperature is 8°C and approximately 4236mm of precipitation falls per year. Milford Sound Airport receives a notable amount of rainfall throughout the year, including during its driest month. Milford Sound Airport 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, March. The coldest months are July, August, June, when temperatures can drop to 2°C. Snowfall occurs from April to December, with around 122cm accumulating over the season.
Temperature
Milford Sound Airport sees moderate temperature variation throughout the year, ranging from 2°C to 16°C. January is the warmest month, though highs remain moderate at 16°C with a mean of 13°C. July is the coolest month, with minimum temperatures around 2°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.
Precipitation
Milford Sound Airport is a very wet location, receiving approximately 4236mm of precipitation annually, which averages out to around 353mm per month. The wettest month is September, averaging 403mm of rainfall. May and October also tend to see above-average precipitation. The driest month is June, with just 272mm. That's 131mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from April to December, with around 122cm accumulating over the season. September typically sees the most snow at around 27cm.
Wind
Milford Sound Airport is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Winter
It is currently autumn in Milford Sound Airport, which began on March 20, 2026. Milford Sound Airport 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 16°C, while the coldest stretch bottoms out in July near 2°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 3 to 13°C. Rainfall is heavy, totalling around 1138mm across the season with a monthly average of 379mm. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 9 to 16°C. Rainfall is heavy, totalling around 1104mm across the season with a monthly average of 368mm. Winds are moderate at around 17km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 5 to 15°C. Rainfall is heavy, totalling around 1063mm across the season with a monthly average of 354mm. Expect around 14cm of snow accumulation during this period. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 2 to 8°C. Rainfall is heavy, totalling around 931mm across the season with a monthly average of 310mm. Expect around 60cm of snow accumulation during this period. Winds are moderate at around 16km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Milford Sound Airport 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.
