Heriot Bay (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Heriot Bay.
Climate overview of Heriot Bay
Temperatures in Heriot Bay, British Columbia, Canada, vary greatly throughout the year. July is the hottest month at 23°C (73°F), while December is the coldest at 6°C (43°F).
The city has a wet climate, receiving around 2139 mm (84 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from October to March, with warm summers and cold winters. November is the wettest month.
Heriot Bay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Heriot Bay - and find the best time to visit.
Monthly Temperature in Heriot Bay
The climate in Heriot Bay is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 6°C (43°F) in December.
Nighttime temperatures range from 13°C (55°F) in July to 0°C (32°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Heriot Bay
Heriot Bay has a notably wet climate with abundant precipitation, recording 2139 mm (84 in) of rain/snowfall per year. The seasons in Heriot Bay bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 307 mm (12 in) of precipitation. This rainfall is distributed across 20 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 74 mm (2.9 in) over 8 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Heriot Bay Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Heriot Bay
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Fewest rainy days: July and August
- Seasonal pattern: A distinct rainy season from October to March, with warm summers and cold winters
Frequently asked questions about the climate in Heriot Bay
What is the best time to visit Heriot Bay?
July and August typically offer the most optimal weather in Heriot Bay. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Heriot Bay has a distinct rainy season from October to March, with warm summers and cold winters.
What temperatures can I expect in Heriot Bay?
Daytime highs range from 6°C (43°F) in December to 23°C (73°F) in July. Nighttime lows range from 0°C (32°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Heriot Bay get?
Annual rainfall is around 2139 mm (84 in). November is the wettest month with 307 mm (12 in), while July is the driest with 74 mm (2.9 in).
Heriot Bay 3-Day Forecast
Heriot Bay (BC) 3-Day Forecast
Heriot Bay on the map
Heriot Bay is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Niagara Falls
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.
Banff National Park
Snowy mountains, clear blue lakes and green forests make Banff National Park a wonderful bucket list destination. The pristine wilderness is a mecca for walkers.