AI-generatedDuncan at a glance
- Best time
- Jul – Aug
- Warmest month
- Jul · 27°
- Warmest sea
- Aug · 16.3°
- Sunshine a year
- 2,140 h
- Rain a year
- 1,350 mm
- Climate
- Temperate
- Time zone
- UTC−8 / UTC−7
- Elevation
- 14 m
Climate in Duncan
Duncan has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 27 °C, while December is the coolest at 8 °C. With around 2,140 hours of sunshine a year, Duncan is moderately sunny; July is the sunniest month with 10.8 hours a day.
Holiday weather through the year
Best time to visit Duncan
The best time to visit Duncan is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 16.3 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. Rain is frequent from October to May; the wettest month is November with 199 mm.
Duncan through the seasons
How the weather changes over the seasons, with averages for each.
Duncan in spring
Mar – May
Poor
- 12–20 °C by day
- Sea 10 °C
- 6.3 h of sun a day
- 45 rainy days in all
Duncan in summer
Jun – Aug
Good
- 23–27 °C by day
- Sea 16 °C
- 9.8 h of sun a day
- 21 rainy days in all
Duncan in autumn
Sep – Nov
Poor
- 11–23 °C by day
- Sea 12 °C
- 4.6 h of sun a day
- 41 rainy days in all
Duncan in winter
Dec – Feb
Poor
- 8–9 °C by day
- Sea 7 °C
- 2.7 h of sun a day
- 50 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Sep
15–28 °C and not too much rain
Rainy months
Oct – May
Rainy season or more than 12 rainy days
Snow
Dec – Feb
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Duncan for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: July – August
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 8°
- Midday, 13:00: about 15°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 12°
- Night, 23:00: about 10°
07:3318:28
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:14–08:16 · evening 17:45–18:47
- Blue hour
- Morning 07:01–07:14 · evening 18:47–18:59
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Duncan compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 19° at the start of the month to 13° at the end. The sea cools from 13° to 10°. The days get 1.7 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 19° | 13° |
| Night-time low | 9° | 6° |
| Sea | 13° | 10° |
| Daylight | 11.7 h | 10.0 h |
What is the weather like in Duncan in October?
In October, Duncan is cool: daytime highs average 16 °C, and nights cool down to about 7 °C. The sea averages 11.3 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. It rains often – on about 14 days, adding up to 137 mm. All in all, October is not an ideal month for a holiday in Duncan.
More details for October
- Daylight
- 10 h 54 min07:33 – 18:28
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 64 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−7offset from UTC
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %20 %
- Few rainy daysweight 20 %26 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Duncan
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Duncan: score 73 against 9. In August, days are 11 °C warmer than in October. The sea is 5 °C warmer in August. August has 9 fewer rainy days. The sun shines 5 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Holiday weather score | 9 | 73better |
| Daytime high | 16° | 27° |
| Night-time low | 7° | 14° |
| Sea | 11.3° | 16.3° |
| Sunshine | 4.2 h | 9.6 hbetter |
| Rainy days | 14 | 5better |
| Rainfall | 137 mm | 32 mmbetter |
Based on the climate averages 1996–2025.
Duncan month by month
The typical weather for every month at a glance.
0January8° · Sea 7° · 2.4 h
In January, Duncan is cold: daytime highs average 8 °C, and nights cool down to about 3 °C. The sea averages 7.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. It rains often – on about 18 days, adding up to 197 mm. Snow falls on about 3 days. All in all, January is not an ideal month for a holiday in Duncan.
Duncan in January8February9° · Sea 7° · 3.7 h
In February, Duncan is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 7.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. It rains often – on about 14 days, adding up to 117 mm. Snow falls on about 2 days. All in all, February is not an ideal month for a holiday in Duncan.
Duncan in February6March12° · Sea 8° · 4.5 h
In March, Duncan is cool: daytime highs average 12 °C, and nights cool down to about 4 °C. The sea averages 7.9 °C – swimming is only for the hardy. Expect around 4.5 hours of sunshine a day. It rains often – on about 18 days, adding up to 142 mm. All in all, March is not an ideal month for a holiday in Duncan.
Duncan in March16April16° · Sea 10° · 6.4 h
In April, Duncan is cool: daytime highs average 16 °C, and nights cool down to about 6 °C. The sea averages 9.5 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. It rains often – on about 15 days, adding up to 98 mm. All in all, April is not an ideal month for a holiday in Duncan.
Duncan in April31May20° · Sea 12° · 7.9 h
In May, Duncan is mild: daytime highs average 20 °C, and nights cool down to about 9 °C. The sea averages 11.9 °C – swimming is only for the hardy. The sun shines for around 7.9 hours a day. Rain is frequent, with about 12 rainy days and 74 mm in total. All in all, May is not an ideal month for a holiday in Duncan.
Duncan in May55June23° · Sea 14° · 8.9 h
In June, Duncan is warm: daytime highs average 23 °C, and nights cool down to about 12 °C. The sea averages 14.1 °C – swimming is only for the hardy. The sun shines for around 8.9 hours a day. Rain is frequent, with about 10 rainy days and 60 mm in total. All in all, June is a so-so month for a holiday in Duncan.
Duncan in June72July27° · Sea 16° · 10.8 h
In July, Duncan is hot: daytime highs average 27 °C, and nights cool down to about 14 °C. The sea averages 16.0 °C – swimming is only for the hardy. With around 10.8 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 31 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, July is a good month for a holiday in Duncan.
Duncan in July73August27° · Sea 16° · 9.6 h
In August, Duncan is warm: daytime highs average 27 °C, and nights cool down to about 14 °C. The sea averages 16.3 °C – swimming is only for the hardy. With around 9.6 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 32 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Duncan.
Duncan in August47September23° · Sea 14° · 7.1 h
In September, Duncan is warm: daytime highs average 23 °C, and nights cool down to about 11 °C. The sea averages 14.3 °C – swimming is only for the hardy. The sun shines for around 7.1 hours a day. Rain falls on about 9 days, adding up to 68 mm. All in all, September is a so-so month for a holiday in Duncan.
Duncan in September9October16° · Sea 11° · 4.2 h
In October, Duncan is cool: daytime highs average 16 °C, and nights cool down to about 7 °C. The sea averages 11.3 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. It rains often – on about 14 days, adding up to 137 mm. All in all, October is not an ideal month for a holiday in Duncan.
Duncan in October1November11° · Sea 9° · 2.6 h
In November, Duncan is cool: daytime highs average 11 °C, and nights cool down to about 4 °C. The sea averages 9.2 °C – swimming is only for the hardy. The sun is scarce, with only about 2.6 hours a day. It rains often – on about 18 days, adding up to 199 mm. All in all, November is not an ideal month for a holiday in Duncan.
Duncan in November0December8° · Sea 8° · 2.1 h
In December, Duncan is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sea averages 7.9 °C – swimming is only for the hardy. The sun is scarce, with only about 2.1 hours a day. It rains often – on about 18 days, adding up to 195 mm. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Duncan.
Duncan in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Duncan
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 7°. The room should be heated.
The coolest nights are in December (2°), the warmest in July (14°). Nights fall below 8 °C on average from October to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 0 | 8° | 3° | 7.2° | 2.4 h | 18 | 197 |
| FebruaryFeb | 8 | 9° | 2° | 7.2° | 3.7 h | 14 | 117 |
| MarchMar | 6 | 12° | 4° | 7.9° | 4.5 h | 18 | 142 |
| AprilApr | 16 | 16° | 6° | 9.5° | 6.4 h | 15 | 98 |
| MayMay | 31 | 20° | 9° | 11.9° | 7.9 h | 12 | 74 |
| JuneJun | 55 | 23° | 12° | 14.1° | 8.9 h | 10 | 60 |
| JulyJul | 72 | 27° | 14° | 16.0° | 10.8 h | 6 | 31 |
| AugustAug | 73 | 27° | 14° | 16.3° | 9.6 h | 5 | 32 |
| SeptemberSep | 47 | 23° | 11° | 14.3° | 7.1 h | 9 | 68 |
| OctoberOct | 9 | 16° | 7° | 11.3° | 4.2 h | 14 | 137 |
| NovemberNov | 1 | 11° | 4° | 9.2° | 2.6 h | 18 | 199 |
| DecemberDec | 0 | 8° | 2° | 7.9° | 2.1 h | 18 | 195 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
48.78° N, 123.70° W · 14 m · America/Vancouver
Sea temperature in Duncan
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 10.8 – 11.9 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Duncan ranges from 7.2 °C in January to 16.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. In December the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 15.3 and 17.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 7.2° | 6.7° | 7.7° | cold |
| FebruaryFeb | 7.2° | 6.7° | 7.8° | cold |
| MarchMar | 7.9° | 7.2° | 8.7° | cold |
| AprilApr | 9.5° | 8.7° | 10.1° | cold |
| MayMay | 11.9° | 11.1° | 12.8° | cold |
| JuneJun | 14.1° | 13.3° | 15.0° | cold |
| JulyJul | 16.0° | 15.2° | 16.8° | cold |
| AugustAug | 16.3° | 15.3° | 17.5° | cold |
| SeptemberSep | 14.3° | 13.5° | 15.1° | cold |
| OctoberOct | 11.3° | 10.8° | 11.9° | cold |
| NovemberNov | 9.2° | 8.6° | 9.7° | cold |
| DecemberDec | 7.9° | 7.4° | 8.5° | cold |
Sunshine hours in Duncan
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 4.2 of 10.9 hours of daylight in Duncan, 39 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Duncan: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Duncan has about 14 rainy days with 137 mm of rain in total.
UV index in Duncan
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 2 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 55 min
- Fair skin
- about 70 min
- Light brown skin
- about 100 min
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind and clouds in Duncan
How breezy and how cloudy Duncan is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Duncan typically peaks at 12 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 64 % of the sky over Duncan: variable cloud, with about 4.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Duncan
How often the day gets hot in Duncan (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Duncan has about 0 hot days, with an average daytime high of 16 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Duncan
Snow is possible in Duncan, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Duncan.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Duncan
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Duncan in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Duncan has its best school-holiday weather during the summer holidays (score 73) and its weakest during the Christmas holidays (score 0).
- 13
Easter holidays
Mar – Apr
Poor
- 15 °C by day
- Sea 9 °C
- 5.8 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 36
May half-term
May – Jun
Poor
- 21 °C by day
- Sea 12 °C
- 8.1 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 73
Summer holidays
Jul – Aug
GoodBest holidays
- 27 °C by day
- Sea 16 °C
- 10.0 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 9
October half-term
Oct
Poor
- 16 °C by day
- Sea 11 °C
- 4.2 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain
- 0
Christmas holidays
Dec – Jan
Poor
- 8 °C by day
- Sea 8 °C
- 2.3 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 9 h 40 min
- Distance
- 7,640 km
- Time zone
- UTC−7
- Jet lag
- About 5 days (8 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Duncan compared
Put Duncan side by side with another destination.
Duncan vs Ladysmith
In October the holiday weather in Duncan and Ladysmith is about equally good (score 9 vs 10). During the day Ladysmith is 1 °C cooler than Duncan. The sea in Ladysmith is 1 °C warmer.
| in October | Duncan | Ladysmith |
|---|---|---|
| Holiday weather score | 9 | 10 |
| Daytime high | 16° | 15° |
| Sea | 11° | 12° |
| Sunshine | 4 h | 4 h |
| Rainy days | 14 | 14 |
| Best time | Jul – Aug | Jul – Aug |
Through the year
Canada in October: the best places
In October, Duncan ranks 20 among the 31 nearest destinations in this country.
- Lillooet15°64
- 2Chilliwack16°55
- 3Sidney15°11°54
- 4Sooke15°10°52
- 5Hope16°51
- 6Saanich15°10°50
- 7Victoria15°10°50
- 8Langford14°10°47
- 20DuncanThis page16°11°9
Near Duncan
Other destinations close by.
Places with a climate like Duncan
Destinations whose weather through the year is closest to Duncan's – good alternatives.
Frequently asked questions about Duncan
When is the best time to visit Duncan?
The best time to visit Duncan is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Duncan?
The sea temperature in Duncan ranges from 7.2 °C in January to 16.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Duncan in October?
Only if you don't mind cold water: in October the sea averages just 11.3 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Duncan?
July is the warmest month, with average highs of 27 °C and nights around 14 °C. December is the coolest month at 8 °C.
When does it rain most in Duncan?
Rain is frequent from October to May; the wettest month is November with 199 mm. The driest month is July with 31 mm.
How many hours of sunshine does Duncan get?
Duncan gets around 2,140 hours of sunshine a year. The sunniest month is July with 10.8 hours a day; in December there are 2.1 hours a day.
What time zone is Duncan in?
Duncan is on UTC−8 in January and UTC−7 in July.
How long is the flight from London to Duncan?
A nonstop flight from London to Duncan takes about 9 h 40 min, for a straight-line distance of about 7,640 km.
Which school holidays are best for Duncan?
Duncan has its best school-holiday weather during the summer holidays (score 73) and its weakest during the Christmas holidays (score 0). Holiday ratings (0–100): Easter holidays 13, May half-term 36, summer holidays 73, October half-term 9, Christmas holidays 0.