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Chilliwack weather & best time to visit

Mountain air

Chilliwack at a glance

Best time
Jun – Sep
Warmest month
Aug · 26°
Sunshine a year
1,930 h
Rain a year
1,961 mm
Climate
Temperate
Time zone
UTC−8 / UTC−7
Elevation
11 m

Climate in Chilliwack

Chilliwack has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 26 °C, while December is the coolest at 6 °C. With around 1,930 hours of sunshine a year, Chilliwack is moderately sunny; July is the sunniest month with 9.9 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Chilliwack

The best time to visit Chilliwack is from June to September. Hiking and mountain trips are best from April to October, when the trails are largely free of snow. Rain is frequent in March and from November to January; the wettest month is November with 285 mm.

Chilliwack through the seasons

How the weather changes over the seasons, with averages for each.

Chilliwack in spring

Mar – May

54

Fair

  • 11–20 °C by day
  • 5.5 h of sun a day
  • 50 rainy days in all

Chilliwack in summer

Jun – Aug

85

Excellent

  • 22–26 °C by day
  • 8.6 h of sun a day
  • 24 rainy days in all

Chilliwack in autumn

Sep – Nov

50

Fair

  • 9–22 °C by day
  • 4.3 h of sun a day
  • 45 rainy days in all

Chilliwack in winter

Dec – Feb

6

Poor

  • 6–8 °C by day
  • 2.7 h of sun a day
  • 55 rainy days in all

Which month for what?

Hiking & mountain trips

Apr – Oct

13–27 °C in the village, little snow

Rainy months

Mar, Nov – Jan

18 or more rainy days, often short showers and storms

Snow

Nov – Mar

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Chilliwack for you.

Sunshine
Little rain

Your best months: May – June, September

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

55

Holiday weather in October

Fair

Best time to visit: June – September

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 6°
  2. Midday, 13:00: about 15°
  3. Afternoon, 16:00: about 15°
  4. Evening, 20:00: about 11°
  5. Night, 23:00: about 9°

07:2718:20

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:07–08:10 · evening 17:37–18:40
Blue hour
Morning 06:55–07:07 · evening 18:40–18:52

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 Chilliwack compared with home

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 12° at the end. The days get 1.7 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high19°12°
Night-time low7°3°
Daylight11.7 h10.0 h

What is the weather like in Chilliwack in October?

In October, Chilliwack is cool: daytime highs average 16 °C, and nights cool down to about 5 °C. The sun is scarce, with only about 3.9 hours a day. It rains often – on about 16 days, adding up to 207 mm. All in all, October is a so-so month for a holiday in Chilliwack.

More details for October

Daylight
10 h 53 min07:27 – 18:20
UV index
2 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
10 km/haverage daily peakAll months
Cloud cover
67 %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 50 %95 %
  • Sunshineweight 20 %15 %
  • Few rainy daysweight 30 %14 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Chilliwack

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Chilliwack: score 90 against 55. In July, days are 10 °C warmer than in October. July has 10 fewer rainy days. The sun shines 6 hours longer a day in July.

October vs July, Chilliwack
MonthOctoberJuly
Holiday weather score5590better
Daytime high16°26°
Night-time low5°12°
Sunshine3.9 h9.9 hbetter
Rainy days166better
Rainfall207 mm43 mmbetter

Based on the climate averages 1996–2025.

Chilliwack month by month

The typical weather for every month at a glance.

1January6° · 2.3 h

In January, Chilliwack is cold: daytime highs average 6 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 2.3 hours a day. It rains often – on about 19 days, adding up to 260 mm. Snow falls on about 7 days. All in all, January is not an ideal month for a holiday in Chilliwack.

Chilliwack in January
16February8° · 3.6 h

In February, Chilliwack is cold: daytime highs average 8 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 3.6 hours a day. It rains often – on about 16 days, adding up to 170 mm. Snow falls on about 6 days. All in all, February is not an ideal month for a holiday in Chilliwack.

Chilliwack in February
29March11° · 4.0 h

In March, Chilliwack is cool: daytime highs average 11 °C, and nights cool down to about 1 °C. Expect around 4.0 hours of sunshine a day. It rains often – on about 20 days, adding up to 220 mm. Snow falls on about 7 days. All in all, March is not an ideal month for a holiday in Chilliwack.

Chilliwack in March
61April16° · 5.8 h

In April, Chilliwack is cool: daytime highs average 16 °C, and nights cool down to about 3 °C. Expect around 5.8 hours of sunshine a day. It rains often – on about 16 days, adding up to 153 mm. Snow falls on about 2 days. All in all, April is a good month for a holiday in Chilliwack.

Chilliwack in April
71May20° · 6.6 h

In May, Chilliwack is mild: daytime highs average 20 °C, and nights cool down to about 7 °C. The sun shines for around 6.6 hours a day. Rain is frequent, with about 14 rainy days and 121 mm in total. All in all, May is a good month for a holiday in Chilliwack.

Chilliwack in May
79June22° · 7.3 h

In June, Chilliwack is warm: daytime highs average 22 °C, and nights cool down to about 10 °C. The sun shines for around 7.3 hours a day. Rain is frequent, with about 11 rainy days and 88 mm in total. All in all, June is a good month for a holiday in Chilliwack.

Chilliwack in June
90July26° · 9.9 h

In July, Chilliwack is warm: daytime highs average 26 °C, and nights cool down to about 12 °C. With around 9.9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 43 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Chilliwack.

Chilliwack in July
86August26° · 8.7 h

In August, Chilliwack is warm: daytime highs average 26 °C, and nights cool down to about 12 °C. The sun shines for around 8.7 hours a day. Rain falls on about 7 days, adding up to 54 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Chilliwack.

Chilliwack in August
79September22° · 6.5 h

In September, Chilliwack is warm: daytime highs average 22 °C, and nights cool down to about 9 °C. The sun shines for around 6.5 hours a day. Rain is frequent, with about 10 rainy days and 105 mm in total. All in all, September is a good month for a holiday in Chilliwack.

Chilliwack in September
55October16° · 3.9 h

In October, Chilliwack is cool: daytime highs average 16 °C, and nights cool down to about 5 °C. The sun is scarce, with only about 3.9 hours a day. It rains often – on about 16 days, adding up to 207 mm. All in all, October is a so-so month for a holiday in Chilliwack.

Chilliwack in October
17November9° · 2.4 h

In November, Chilliwack is cold: daytime highs average 9 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 2.4 hours a day. It rains often – on about 19 days, adding up to 285 mm. Snow falls on about 4 days. All in all, November is not an ideal month for a holiday in Chilliwack.

Chilliwack in November
0December6° · 2.2 h

In December, Chilliwack is cold: daytime highs average 6 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 2.2 hours a day. It rains often – on about 19 days, adding up to 255 mm. Snow falls on about 9 days. All in all, December is not an ideal month for a holiday in Chilliwack.

Chilliwack in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Chilliwack

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°

ColdOctober: nights around 5°. The room should be heated.

The coolest nights are in December (−2°), the warmest in July (12°). Nights fall below 8 °C on average from October to May, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 16°Night 5°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan16°−1°2.3 h19260
FebruaryFeb168°−1°3.6 h16170
MarchMar2911°1°4.0 h20220
AprilApr6116°3°5.8 h16153
MayMay7120°7°6.6 h14121
JuneJun7922°10°7.3 h1188
JulyJul9026°12°9.9 h643
AugustAug8626°12°8.7 h754
SeptemberSep7922°9°6.5 h10105
OctoberOct5516°5°3.9 h16207
NovemberNov179°1°2.4 h19285
DecemberDec06°−2°2.2 h19255

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

49.17° N, 121.95° W · 11 m · America/Vancouver

Sunshine

Sunshine hours in Chilliwack

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,930 hours
Sunniest month
Jul · 9.9 h a day
Least sunshine
Dec · 2.2 h a day
OctoberSunshine 3.9 hDaylight 10.9 hShare of daylight 36 %
SunshineDaylight

In October, the sun shines for about 3.9 of 10.9 hours of daylight in Chilliwack, 36 % 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

Rain in Chilliwack: 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.

Per year
1,961 mm on 173 days
Wettest month
Nov · 285 mm
Driest month
Jul · 43 mm
OctoberRainy days 16Rainfall 207 mm

In October, Chilliwack has about 16 rainy days with 207 mm of rain in total.

Sun protection

UV index in Chilliwack

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 60 min
Fair skin
about 75 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 & clouds

Wind and clouds in Chilliwack

How breezy and how cloudy Chilliwack 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.

Year average
10 km/h · light breeze or less
Windiest month
Dec · 11 km/h
Calmest month
Sep · 8 km/h
OctoberWind 10 km/hBeaufort 2

In October, the wind in Chilliwack typically peaks at 10 km/h during the day: Beaufort 2, light breeze or less.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
65 % · mostly cloudy
Clearest month
Jul · 43 %
Cloudiest month
Dec · 77 %
OctoberCloud cover 67 %Sunshine 3.9 h

In October, cloud covers on average 67 % of the sky over Chilliwack: mostly cloudy, with about 3.9 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 & humidity

Heat and humidity in Chilliwack

How often the day gets hot in Chilliwack (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
17 days
Hottest month
Aug · 26 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 16 °C

In October, Chilliwack 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

Snow in Chilliwack

When Chilliwack is likely to be white: 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 days a year
35 days
Fresh snow a year
144 cm
Snowy months
Dec – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 3 / 100

In October, it hardly ever snows in Chilliwack.

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 Chilliwack

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Chilliwack 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.

Chilliwack has its best school-holiday weather during the summer holidays (score 87) and its weakest during the Christmas holidays (score 1).

  • Easter holidays

    Mar – Apr

    51

    Fair

    • 14 °C by day
    • 5.3 h of sun a day
    • 17 rainy days a month

    Keep in mind: Frequent rain, Snow

  • May half-term

    May – Jun

    73

    Good

    • 20 °C by day
    • 6.7 h of sun a day
    • 13 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    87

    ExcellentBest holidays

    • 26 °C by day
    • 9.1 h of sun a day
    • 6 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    55

    Fair

    • 16 °C by day
    • 3.9 h of sun a day
    • 16 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    1

    Poor

    • 6 °C by day
    • 2.3 h of sun a day
    • 19 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 35 min
Distance
7,530 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

Compare

Chilliwack compared

Put Chilliwack side by side with another destination.

Nearby:
Compare with home:

Chilliwack vs Mission

In October the holiday weather in Chilliwack and Mission is about equally good (score 55 vs 58). During the day it is about as warm in Mission as in Chilliwack.

Chilliwack vs Mission, in October
in OctoberChilliwackMission
Holiday weather score5558
Daytime high16°16°
Sunshine4 h4 h
Rainy days1616
Best timeJun – SepJun – Aug

Through the year

OctoberChilliwack 16°Mission 16°
ChilliwackMission
Go to Mission
Ranking

Canada in October: the best places

In October, Chilliwack ranks 6 among the 31 nearest destinations in this country.

  1. Lillooet15°64
  2. 2Osoyoos (Okanagan)15°64
  3. 3Kelowna15°62
  4. 4Penticton (Okanagan)15°60
  5. 5Summerland14°59
  6. 6ChilliwackThis page16°55
  7. 7Sidney15°11°54
  8. 8Sooke15°10°52
All destinations: Canada

Near Chilliwack

Other destinations close by.

Places with a climate like Chilliwack

Destinations whose weather through the year is closest to Chilliwack's – good alternatives.

  1. 75 % similar58BesançonFrance16°Best time: May – Sep
  2. 74 % similar50BelfortFrance15°Best time: May – Sep
  3. 74 % similar53Baden-BadenGermany16°Best time: Apr – Sep
  4. 74 % similar56OffenburgGermany16°Best time: Apr – Sep

Frequently asked questions about Chilliwack

When is the best time to visit Chilliwack?

The best time to visit Chilliwack is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Chilliwack?

August is the warmest month, with average highs of 26 °C and nights around 12 °C. December is the coolest month at 6 °C.

When does it rain most in Chilliwack?

Rain is frequent in March and from November to January; the wettest month is November with 285 mm. The driest month is July with 43 mm.

How many hours of sunshine does Chilliwack get?

Chilliwack gets around 1,930 hours of sunshine a year. The sunniest month is July with 9.9 hours a day; in December there are 2.2 hours a day.

What time zone is Chilliwack in?

Chilliwack is on UTC−8 in January and UTC−7 in July.

How long is the flight from London to Chilliwack?

A nonstop flight from London to Chilliwack takes about 9 h 35 min, for a straight-line distance of about 7,530 km.

Which school holidays are best for Chilliwack?

Chilliwack has its best school-holiday weather during the summer holidays (score 87) and its weakest during the Christmas holidays (score 1). Holiday ratings (0–100): Easter holidays 51, May half-term 73, summer holidays 87, October half-term 55, Christmas holidays 1.