Osoyoos swings 33°C across the year, from 30°C highs in July to -3°C lows in January, and December is usually the wettest month in a year that brings about 389 mm of precipitation.
Warmest month
July
30°C average high
Coldest month
January
-3°C average low
Wettest month
December
389 mm a year
Below freezing
3 months
January, February and December
Comfortable
3 months
May, June and September
Residents
5,556
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The weather map: all three models at once
Env. Canada, European, American side by side around Osoyoos and nearby towns.Live rain radar →
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Osoyoos hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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Osoyoos 10-day forecast, out to 14 days
where the models agree, and where they split
Osoyoos, British Columbia is at its warmest in Jul (average highs near 30°C) and coldest in Jan (lows around -3°C), with roughly 389 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Osoyoos right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
3°
-3°
Feb
5°
-2°
Mar
11°
2°
Apr
15°
4°
May
21°
9°
Jun
24°
12°
Jul
30°
16°
Aug
30°
17°
Sep
24°
13°
Oct
15°
7°
Nov
7°
2°
Dec
3°
-2°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Osoyoos' weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+0.6°C
Around Osoyoos, the difference between 1995-2004 and 2015-2024 is +0.6°C, within the normal swing from year to year.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 30°C
8 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
9 fewer nights a year
2015-2024 against 1995-2004, below 0°C. Within the normal year-to-year swing
Average wind
+2%
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >30°C vs avg
Frost nights vs avg
Wind vs avg
1995
−0.7°C
−16
+4
−6%
1996
−2.0°C
−2
+18
−0%
1997
−0.2°C
−13
+2
−0%
1998
+0.8°C
+4
−12
−6%
1999
−0.2°C
−9
+17
+5%
2000
−0.7°C
−6
+6
−0%
2001
−0.1°C
−5
+10
−0%
2002
−0.2°C
+1
+8
−0%
2003
+0.5°C
+6
−10
−0%
2004
+0.8°C
+9
−13
−6%
2005
+0.1°C
−5
−14
−0%
2006
−0.1°C
+5
+3
−0%
2007
−0.3°C
−2
+6
+5%
2008
−0.7°C
−4
+14
−0%
2009
−0.6°C
+5
+18
−0%
2010
−0.3°C
−7
+1
−0%
2011
−0.9°C
−9
+13
+5%
2012
+0.2°C
+1
+3
+5%
2013
±0.0°C
−4
+5
−0%
2014
+0.4°C
+2
−12
−0%
2015
+1.6°C
+8
−24
−0%
2016
+0.6°C
−8
−34
−0%
2017
−0.7°C
+5
+14
−0%
2018
+0.1°C
−2
−7
−0%
2019
−0.2°C
−10
−1
−0%
2020
+0.4°C
+0
−1
+5%
2021
+0.8°C
+26
−6
+5%
2022
+0.2°C
+13
−3
+5%
2023
+1.0°C
+4
−5
−6%
2024
+0.3°C
+12
+8
−6%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Osoyoos, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Osoyoos?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
96
/100rank #1
95±0.3°C
97±1.3 km/h
9597% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
81
/100rank #2
71±1.6°C
94±2.8 km/h
8290% hit
Environment and Climate Change CanadaDorval, Québec, Canada
American
70
/100rank #3
58±2.4°C
81±9.3 km/h
7687% hit
NOAA / NCEP (United States)College Park, Maryland, USA
The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.
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AmericanNOAA GFS
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Common questions
What's the weather in Osoyoos today?
On this page we show what Env. Canada, European, American each forecast for Osoyoos today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Osoyoos today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Osoyoos and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Osoyoos?
Over the last 30 days, the European model has been the most accurate for Osoyoos (CheckWeather Score 96/100), ahead of the Env. Canada at 81. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Osoyoos?
July is typically the warmest month in Osoyoos, with average highs around 30°C.
How cold does Osoyoos get?
The coldest month in Osoyoos is January, when overnight lows average about -3°C.
How much rain does Osoyoos get?
Osoyoos sees roughly 389 mm of precipitation a year, with December usually the wettest month.
Is Osoyoos getting warmer?
Not clearly. In NASA's reanalysis for the area around Osoyoos, the difference between 1995-2004 and 2015-2024 is 0.6°C, within the normal swing from year to year.
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