Climate Insights for Port Nelson Airport

The climate in Port Nelson Airport is hot. The average annual temperature is 26°C and approximately 911mm of precipitation falls per year. Port Nelson Airport receives a notable amount of rainfall throughout the year, including during its driest month. Port Nelson Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are March, January, February, when temperatures can drop to 23°C.

Port Nelson Airport has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. March is the coolest month, with minimum temperatures around 23°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.

Port Nelson Airport is a moderately rainy area, receiving approximately 911mm of precipitation annually, which averages out to around 76mm per month. The wettest month is October, averaging 162mm of rainfall. September and May also tend to see above-average precipitation. The driest month is March, with just 33mm. That's 129mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Port Nelson Airport is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 24km/h in winter, 22km/h in spring, 21km/h in summer, 21km/h in autumn.

It is currently autumn in Port Nelson Airport, which began on September 23, 2026. Port Nelson Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in March near 23°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Port Nelson Airport is during January, February, March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 41mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Port Nelson 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. 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.