The best times to visit Duncan for ideal weather are
May 28th to September 23rd
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Duncan Travel Guide
Other Duncan Travel Info
Weather in Duncan
Average temperatures in Duncan vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 29th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Duncan, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 79.9°F (26.6°C) with temperatures rarely dropping below 53.3°F (11.8°C) at night.
Duncan Temperatures (Fahrenheit)
Duncan Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Duncan Perceived Temperature (F)
Duncan Perceived Temperature (C)
Average Duncan Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Duncan are July, June, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid July. For example, on the week of July 9th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 4 days of significant precipitation the week of December 24th.
When can you find snow in Duncan? Weather stations report moderate or seasonal snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Duncan is often around around December 24th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Duncan.
Snow on the Ground
The graph below shows the average snow on the ground in Duncan (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Duncan has some extremely humid months, with other comfortably humid months. The least humid month is July (53.8% relative humidity), and the most humid month is January (87.2%).
Wind in Duncan is usually extremely calm. The windiest month is April, followed by June and May. April’s average wind speed of around 2.4 knots (2.8 MPH or 4.5 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 4.9 knots, which is considered a light breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Duncan.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||1.4||Barely noticeable||2.9||Barely noticeable|
|Feb||1.7||Barely noticeable||3.5||Barely noticeable|
|Mar||2.2||Barely noticeable||4.3||Barely noticeable|
|Apr||2.4||Barely noticeable||4.6||Light breeze|
|May||2.2||Barely noticeable||4.3||Barely noticeable|
|Jun||2.3||Barely noticeable||4.3||Light breeze|
|Jul||2.2||Barely noticeable||4.2||Barely noticeable|
|Aug||2||Barely noticeable||4.3||Light breeze|
|Sep||1.8||Barely noticeable||3.6||Barely noticeable|
|Oct||1.5||Barely noticeable||3.1||Barely noticeable|
|Nov||1.5||Barely noticeable||2.9||Barely noticeable|
|Dec||1.4||Barely noticeable||2.9||Barely noticeable|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Duncan?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Canada; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 07, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Duncan, BC, Canada is July, followed by August and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Duncan in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Duncan Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 67.3°F (19.6°C) and 47°F (8.3°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 10 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 1 to 3 days of precipitation per month. June – August is the busiest season for tourism in Duncan, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 74.7°F (23.7°C) and 45.8°F (7.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 to 11 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Duncan to be enjoyable for warm weather travelers. The average high during this season is between 48.1°F (8.9°C) and 42.2°F (5.7°C). On average, it rains or snows a great amount: 9 to 14 times per month. These times of year are fairly slow with tourists.