Climate Insights for Port Nelson Airport

The climate in Port Nelson Airport is hot. The average annual temperature is 26°C and approximately 885mm of precipitation falls per year. October is the wettest month, receiving around 183mm of rainfall. 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 February, March, January, 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. February 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 885mm of precipitation annually, which averages out to around 74mm per month. The wettest month is October, averaging 183mm of rainfall. May and November also tend to see above-average precipitation. The driest month is March, with just 27mm. That's 156mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Port Nelson Airport is moderately windy, with an average annual wind speed of 28km/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 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in September, with average winds dropping to 24km/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 31km/h in winter, 28km/h in spring, 26km/h in summer, 27km/h in autumn.

It is currently spring in Port Nelson Airport, which began on March 20, 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 February near 23°C. Summer is next, beginning on June 21, 2026 — 89 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 38mm 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.