Whistler weather in September

In September, Whistler sees average daytime highs of 13°C and overnight lows near 4°C, with 135 mm of precipitation across 11.8 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 11°C by the end. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Whistler's 3rd-clearest and 12th-windiest month. For the whole year in context, see Whistler's year-round climate.

Daytime high: 13°; 3rd warmest
Overnight low: 4°; 9th coldest
Precipitation: 135 mm; 11.8 wet days
Daylight: 12 h 24 min; 5:55 AM – 6:17 PM
Cloud cover: 60%; 3rd clearest
Wind: 4 km/h; 12th windiest
Solar energy: 3.65 kWh/m²
Travel score: 3.6; out of 10

Whistler is town in British Columbia, Canada.

Air quality: Excellent; PM2.5 5 µg/m³ · 2019
Density: 36/km²; people per km²
Founded: 1914

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Whistler year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 15°C in the first days to 11°C by the end.

A typical September day in Whistler reaches about 13°C in the afternoon and slips back to 4°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 20°C. Set against its neighbours, September runs about 4°C cooler than August and about 8°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	13	13	13	13	13	13	12	12	12	12	11	11	11	11	10
Avg low (°C)	6	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	3	3	3	3	3	2	2	2	2	2	1

	Avg high (°C)	Avg low (°C)
1	15	6
2	15	5
3	15	5
4	15	5
5	15	5
6	15	5
7	15	5
8	15	5
9	15	5
10	14	5
11	14	5
12	14	4
13	14	4
14	14	4
15	14	4
16	13	4
17	13	4
18	13	4
19	13	4
20	13	3
21	13	3
22	12	3
23	12	3
24	12	3
25	12	2
26	11	2
27	11	2
28	11	2
29	11	2
30	10	1

How September really feels in Whistler

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Whistler weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-3° / -8°	350	19.2	19.8	8.3	0.0
Feb	-1° / -7°	215	15.3	15.9	9.7	0.0
Mar	1° / -5°	291	19.9	19.9	11.5	0.0
Apr	5° / -3°	169	16.4	15.4	13.5	0.1
May	9° / 1°	125	15.8	7.5	15.2	1.6
Jun	13° / 4°	122	16.9	2.1	16.1	3.0
Jul	17° / 7°	80	10.8	0.1	15.7	5.6
Aug	18° / 7°	85	10.3	0.1	14.3	5.7
Sep	13° / 4°	135	11.8	1.9	12.4	3.6
Oct	6° / -1°	273	17.3	12.3	10.5	0.5
Nov	-1° / -6°	391	19.8	18.9	8.8	0.0
Dec	-4° / -8°	342	19.1	19.7	7.9	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 59%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	40	40	40	42	42	42	43	43	43	43	42	42	42	42	41	41	41	40	40	41	40	41	41	41	42	41	41	41	40	40
Cloudier (%)	60	60	60	58	58	58	57	57	57	57	58	58	58	58	59	59	59	60	60	59	60	59	59	59	58	59	59	59	60	60

	Clearer (%)	Cloudier (%)
1	40	60
2	40	60
3	40	60
4	42	58
5	42	58
6	42	58
7	43	57
8	43	57
9	43	57
10	43	57
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	40	60
19	40	60
20	41	59
21	40	60
22	41	59
23	41	59
24	41	59
25	42	58
26	41	59
27	41	59
28	41	59
29	40	60
30	40	60

Chance of precipitation in September

Any precipitationSnow

Whistler gets around 135 mm of rain and snow over 11.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 43% on the wettest days, and about 2 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	38	38	38	38	37	37	37	37	38	38	38	39	39	40	40	40	40	41	41	41	42	42	42	42	42	41	42	42	42	43
Snow chance (%)	1	1	1	1	1	2	2	3	3	4	4	5	5	6	6	7	7	8	8	9	10	10	11	12	13	14	15	16	17	19

	Rain chance (%)	Snow chance (%)
1	38	1
2	38	1
3	38	1
4	38	1
5	37	1
6	37	2
7	37	2
8	37	3
9	38	3
10	38	4
11	38	4
12	39	5
13	39	5
14	40	6
15	40	6
16	40	7
17	40	7
18	41	8
19	41	8
20	41	9
21	42	10
22	42	10
23	42	11
24	42	12
25	42	13
26	41	14
27	42	15
28	42	16
29	42	17
30	43	19

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in September

Winds average 4 km/h in September, the calmest month.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 5:32 AM to 6:17 AM, and sunset from 6:51 PM to 5:45 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	13.3	13.3	13.2	13.1	13.1	13.0	12.9	12.9	12.8	12.8	12.7	12.6	12.6	12.5	12.4	12.4	12.3	12.2	12.2	12.1	12.0	12.0	11.9	11.9	11.8	11.7	11.7	11.6	11.5	11.5
Sunrise (AM)	5:32	5:33	5:35	5:36	5:38	5:40	5:41	5:43	5:44	5:46	5:47	5:49	5:50	5:52	5:53	5:55	5:57	5:58	6:00	6:01	6:03	6:04	6:06	6:08	6:09	6:11	6:12	6:14	6:15	6:17
Sunset (PM)	6:51	6:49	6:47	6:45	6:42	6:40	6:38	6:36	6:33	6:31	6:29	6:26	6:24	6:22	6:20	6:17	6:15	6:13	6:10	6:08	6:06	6:03	6:01	5:59	5:57	5:54	5:52	5:50	5:47	5:45

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.3	5:32	6:51
2	13.3	5:33	6:49
3	13.2	5:35	6:47
4	13.1	5:36	6:45
5	13.1	5:38	6:42
6	13.0	5:40	6:40
7	12.9	5:41	6:38
8	12.9	5:43	6:36
9	12.8	5:44	6:33
10	12.8	5:46	6:31
11	12.7	5:47	6:29
12	12.6	5:49	6:26
13	12.6	5:50	6:24
14	12.5	5:52	6:22
15	12.4	5:53	6:20
16	12.4	5:55	6:17
17	12.3	5:57	6:15
18	12.2	5:58	6:13
19	12.2	6:00	6:10
20	12.1	6:01	6:08
21	12.0	6:03	6:06
22	12.0	6:04	6:03
23	11.9	6:06	6:01
24	11.9	6:08	5:59
25	11.8	6:09	5:57
26	11.7	6:11	5:54
27	11.7	6:12	5:52
28	11.6	6:14	5:50
29	11.5	6:15	5:47
30	11.5	6:17	5:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.65 kWh/m².

For context, solar energy here swings from a low near 0.85 kWh/m² to a high of 5.98 kWh/m² in July across the year — September's 3.65 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.3	4.3	4.3	4.2	4.2	4.1	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.6	3.6	3.5	3.5	3.4	3.4	3.3	3.3	3.2	3.2	3.1	3.1	3.0	3.0	2.9	2.9
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.3	Bright
4	4.2	Bright
5	4.2	Bright
6	4.1	Bright
7	4.1	Bright
8	4.0	Bright
9	4.0	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	3.8	Moderate
13	3.8	Moderate
14	3.7	Moderate
15	3.6	Moderate
16	3.6	Moderate
17	3.5	Moderate
18	3.5	Moderate
19	3.4	Moderate
20	3.4	Moderate
21	3.3	Moderate
22	3.3	Moderate
23	3.2	Moderate
24	3.2	Moderate
25	3.1	Moderate
26	3.1	Moderate
27	3.0	Moderate
28	3.0	Moderate
29	2.9	Moderate
30	2.9	Moderate

Planning a trip in September

Hazard calendar for Whistler

In seasonPeak

None of Whistler's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Whistler's rainy season runs October–March, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Whistler?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.6

Sightseeing

3rd-best month of the year

0.0

Beach & pool

3rd-best month of the year

September is a weaker month for outdoor sightseeing in Whistler.

What to pack for Whistler in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Whistler sees daytime highs around 13°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Whistler in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Whistler peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	4	5	8	7	9	7	4	3	1	1
Level	Low	Low	Moderate	Moderate	Very high	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	4	Moderate
Apr	5	Moderate
May	8	Very high
Jun	7	High
Jul	9	Very high
Aug	7	High
Sep	4	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Whistler?

Whistler sits at 50.1°N, 123.0°W, 0 m above sea level, in Canada. The nearest listed city is Squamish, 49 km away.

Topography around Whistler

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Whistler.

Within 3 km, the terrain around Whistler has large variations in elevation — a maximum elevation change of 852 m around an average of 826 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,493 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,912 m.

The land around Whistler is covered by trees (79%) within 3 km, trees (70%) within 16 km, and trees (62%) within 80 km.

3 km

852 m

trees 79%

16 km

2,493 m

trees 70%

80 km

2,912 m

trees 62%

treesgrasslandartificial surfacesbare terrainsnow and icewatermoss and lichen

← August Whistler year-round climate October →Best places to visit in September

September weather nearby: Squamish 49 km · Central Lonsdale 89 km · West Vancouver 89 km · North Vancouver 90 km · Lower Lonsdale 90 km · Westwood Plateau 91 km · Hastings-Sunrise 93 km · Coquitlam 94 km

Canada travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 83% of US; price level, 2025
GDP per capita: $55,698; 2025
Happiness: 6.7 / 10; World Happiness, 2025
Safe drinking water: 97%; of population, 2024
Homicide rate: 2; per 100k, 2023
Road deaths: 5.3; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Whistler (50.1182°, -122.954°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	15	6
2	15	5
3	15	5
4	15	5
5	15	5
6	15	5
7	15	5
8	15	5
9	15	5
10	14	5
11	14	5
12	14	4
13	14	4
14	14	4
15	14	4
16	13	4
17	13	4
18	13	4
19	13	4
20	13	3
21	13	3
22	12	3
23	12	3
24	12	3
25	12	2
26	11	2
27	11	2
28	11	2
29	11	2
30	10	1

	Clearer (%)	Cloudier (%)
1	40	60
2	40	60
3	40	60
4	42	58
5	42	58
6	42	58
7	43	57
8	43	57
9	43	57
10	43	57
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	40	60
19	40	60
20	41	59
21	40	60
22	41	59
23	41	59
24	41	59
25	42	58
26	41	59
27	41	59
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	38	1
2	38	1
3	38	1
4	38	1
5	37	1
6	37	2
7	37	2
8	37	3
9	38	3
10	38	4
11	38	4
12	39	5
13	39	5
14	40	6
15	40	6
16	40	7
17	40	7
18	41	8
19	41	8
20	41	9
21	42	10
22	42	10
23	42	11
24	42	12
25	42	13
26	41	14
27	42	15
28	42	16
29	42	17
30	43	19

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	15	6
2	15	5
3	15	5
4	15	5
5	15	5
6	15	5
7	15	5
8	15	5
9	15	5
10	14	5
11	14	5
12	14	4
13	14	4
14	14	4
15	14	4
16	13	4
17	13	4
18	13	4
19	13	4
20	13	3
21	13	3
22	12	3
23	12	3
24	12	3
25	12	2
26	11	2
27	11	2
28	11	2
29	11	2
30	10	1

	Clearer (%)	Cloudier (%)
1	40	60
2	40	60
3	40	60
4	42	58
5	42	58
6	42	58
7	43	57
8	43	57
9	43	57
10	43	57
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	40	60
19	40	60
20	41	59
21	40	60
22	41	59
23	41	59
24	41	59
25	42	58
26	41	59
27	41	59
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	38	1
2	38	1
3	38	1
4	38	1
5	37	1
6	37	2
7	37	2
8	37	3
9	38	3
10	38	4
11	38	4
12	39	5
13	39	5
14	40	6
15	40	6
16	40	7
17	40	7
18	41	8
19	41	8
20	41	9
21	42	10
22	42	10
23	42	11
24	42	12
25	42	13
26	41	14
27	42	15
28	42	16
29	42	17
30	43	19

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	15	6
2	15	5
3	15	5
4	15	5
5	15	5
6	15	5
7	15	5
8	15	5
9	15	5
10	14	5
11	14	5
12	14	4
13	14	4
14	14	4
15	14	4
16	13	4
17	13	4
18	13	4
19	13	4
20	13	3
21	13	3
22	12	3
23	12	3
24	12	3
25	12	2
26	11	2
27	11	2
28	11	2
29	11	2
30	10	1

	Clearer (%)	Cloudier (%)
1	40	60
2	40	60
3	40	60
4	42	58
5	42	58
6	42	58
7	43	57
8	43	57
9	43	57
10	43	57
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	40	60
19	40	60
20	41	59
21	40	60
22	41	59
23	41	59
24	41	59
25	42	58
26	41	59
27	41	59
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	38	1
2	38	1
3	38	1
4	38	1
5	37	1
6	37	2
7	37	2
8	37	3
9	38	3
10	38	4
11	38	4
12	39	5
13	39	5
14	40	6
15	40	6
16	40	7
17	40	7
18	41	8
19	41	8
20	41	9
21	42	10
22	42	10
23	42	11
24	42	12
25	42	13
26	41	14
27	42	15
28	42	16
29	42	17
30	43	19

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100