Climate Overview
The climate in Long Lake-Helms Seaplane Base is cool. The average annual temperature is 6°C and approximately 1206mm of precipitation falls per year. Long Lake-Helms Seaplane Base receives a notable amount of rainfall throughout the year, including during its driest month. Long Lake-Helms Seaplane Base is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to -12°C. Long Lake-Helms Seaplane Base experiences heavy snowfall, typically from January through December.
Temperature
Long Lake-Helms Seaplane Base has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 20°C. The coldest month is January, when overnight lows fall to -12°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 8°C shift in average temperatures.
Precipitation
Long Lake-Helms Seaplane Base is a fairly wet location, receiving approximately 1206mm of precipitation annually, which averages out to around 101mm per month. The wettest month is October, averaging 142mm of rainfall. April and June also tend to see above-average precipitation. The driest month is September, with just 69mm. That's 73mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Long Lake-Helms Seaplane Base receives heavy snowfall, accumulating around 305cm annually from January through December. The snowiest month is January, with approximately 63cm. Winter travel should account for significant snow cover.
Wind
Long Lake-Helms Seaplane Base is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/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
83 days until Autumn
It is currently summer in Long Lake-Helms Seaplane Base, which began on June 21, 2026. Long Lake-Helms Seaplane Base 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 July at around 26°C, while the coldest stretch bottoms out in January near -12°C. Autumn is next, beginning on September 23, 2026 — 83 days from now.
Spring
Temperatures range from -6 to 18°C. Rainfall is heavy, totalling around 304mm across the season with a monthly average of 101mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 11 to 26°C. Precipitation is moderate at around 293mm for the season, averaging 98mm per month. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -4 to 20°C. Rainfall is heavy, totalling around 316mm across the season with a monthly average of 105mm. Expect around 57cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -12 to -1°C. Precipitation is moderate at around 294mm for the season, averaging 98mm per month. Expect around 173cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Long Lake-Helms Seaplane Base is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 92mm per month. By contrast, January can be quite cold with temperatures dropping to -12°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Long Lake-Helms Seaplane Base 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.
