How warm is it in Vancouver in September?

Daytime highs averaged 16.9 °C, night-time lows 10.0 °C. The highest value of the past 10 years was 29.9 °C (6 Sep 2024), the lowest 2.5 °C (30 Sep 2024).

How often does it rain in Vancouver in September?

On average there were 13.2 rain days (at least 1 mm) with 139 mm of precipitation in total.

How warm is the sea in Vancouver in September?

The sea temperature averaged 15.5 °C (open-sea point approx. 6 km from the town).

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Vancouver weather in September: temperature & rain

Photo: Xicotencatl · CC BY-SA 4.0

🇨🇦 Weather in Vancouver in September

This is what the weather in Vancouver (British Columbia, Canada) was like in September over the years 2017–2026.

Key facts at a glance

Prevailing weather: Rain

Avg. daytime high

16.9 °C

14.9 °C – 19.3 °C

Avg. night-time low

10.0 °C

8.6 °C – 11.5 °C

Avg. rain days in period

13.2

44 % of days · ≥ 1.0 mm

Avg. precipitation in period

139 mm

25.5 mm – 255 mm

Avg. cloud cover

60 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

15.5 °C

Sea temperature available for 4 of 10 years.

Extremes: Highest temperature 29.9 °C (6 Sep 2024) · Lowest temperature 2.5 °C (30 Sep 2024) · Avg. daily peak wind 8 km/h

Weather mix of all days

63Sunny
64Partly cloudy
28Cloudy
55Light rain
73Rain
4Snow

Summary

On average 16.9 °C during the day and 10.0 °C at night.
On average 13.2 rain days (Rain day = at least 1.0 mm of precipitation) with 139 mm of precipitation in total.
The sea averaged 15.5 °C.
Prevailing weather: Rain.
Warmest year: 2022 (avg. 19.3 °C), coolest: 2026 (avg. 14.9 °C).
Wettest year: 2021 (255 mm), driest: 2022 (25.5 mm).
Extremes: 29.9 °C on 6 Sep 2024 and 2.5 °C on 30 Sep 2024.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max14.9°Avg. min8.6°
Rain days
17 Rain days
Precipitation
112 mm
Avg. cloud cover
–
Sea temperature
15.1 °C
Max 20.8 °C · Min 4.1 °C
2025
Avg. max18.1°Avg. min11.5°
Rain days
17 Rain days
Precipitation
162 mm
Avg. cloud cover
53 % cloudy
Sea temperature
15.0 °C
Max 26.7 °C · Min 7.0 °C
2024
Avg. max16.8°Avg. min9.9°
Rain days
12 Rain days
Precipitation
108 mm
Avg. cloud cover
62 % cloudy
Sea temperature
15.4 °C
Max 29.9 °C · Min 2.5 °C
2023
Avg. max16.7°Avg. min9.5°
Rain days
12 Rain days
Precipitation
100 mm
Avg. cloud cover
58 % cloudy
Sea temperature
–
Max 23.3 °C · Min 4.1 °C
2022
Avg. max19.3°Avg. min10.7°
Rain days
6 Rain days
Precipitation
25.5 mm
Avg. cloud cover
40 % cloudy
Sea temperature
16.4 °C
Max 25.9 °C · Min 6.9 °C
2021
Avg. max15.4°Avg. min9.4°
Rain days
15 Rain days
Precipitation
255 mm
Avg. cloud cover
74 % cloudy
Sea temperature
–
Max 24.0 °C · Min 4.9 °C
2020
Avg. max19.0°Avg. min11.4°
Rain days
9 Rain days
Precipitation
147 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 27.9 °C · Min 7.0 °C
2019
Avg. max15.7°Avg. min9.8°
Rain days
19 Rain days
Precipitation
195 mm
Avg. cloud cover
73 % cloudy
Sea temperature
–
Max 25.7 °C · Min 2.8 °C
2018
Avg. max15.1°Avg. min8.9°
Rain days
17 Rain days
Precipitation
224 mm
Avg. cloud cover
70 % cloudy
Sea temperature
–
Max 23.2 °C · Min 5.9 °C
2017
Avg. max17.9°Avg. min10.6°
Rain days
8 Rain days
Precipitation
63.4 mm
Avg. cloud cover
58 % cloudy
Sea temperature
–
Max 27.8 °C · Min 5.0 °C

Frequently asked questions

How warm is it in Vancouver in September?: Daytime highs averaged 16.9 °C, night-time lows 10.0 °C. The highest value of the past 10 years was 29.9 °C (6 Sep 2024), the lowest 2.5 °C (30 Sep 2024).
How often does it rain in Vancouver in September?: On average there were 13.2 rain days (at least 1 mm) with 139 mm of precipitation in total.
How warm is the sea in Vancouver in September?: The sea temperature averaged 15.5 °C (open-sea point approx. 6 km from the town).

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis); Sea measuring point approx. 6 km from the location (49.300, -123.200)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)