July
July · August · June
86climate match
Canada · 1991–2020
Best time to visit
Lake Cowichan.
July leads for comfortable weather in Lake Cowichan: typically 25.8°C by day, 11.2°C at night, with 30 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high25.8°C
Typical low11.2°C
Rain in July30 mm
July
July · August · June
61climate match
June
June · July · September
85climate match
The weakest month is January, scoring 5 against July’s 86 — days reach only 6.6°C, 17° below the 24°C the score treats as ideal, and 391 mm of rain falls.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
56.6° / -0.1°
Feb
58.3° / 0°
Mar
510.7° / 1.3°
Apr
2014.2° / 3.2°
May
5619° / 6.3°
Jun
7421.5° / 9°
Jul
8625.8° / 11.2°
Aug
8426° / 11.3°
Sep
7222.4° / 8.5°
Oct
1614.9° / 5°
Nov
59.4° / 1.7°
Dec
56.1° / -0.3°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 6.6°C | -0.1°C | 391 mm | 18.2 | 8 h 40 | 5 | Strong coverage |
| February | 8.3°C | 0°C | 222 mm | 14.4 | 10 h 05 | 5 | Strong coverage |
| March | 10.7°C | 1.3°C | 258 mm | 19 | 11 h 43 | 5 | Strong coverage |
| April | 14.2°C | 3.2°C | 146 mm | 15.1 | 13 h 37 | 20 | Strong coverage |
| May | 19°C | 6.3°C | 69 mm | 10.5 | 15 h 14 | 56 | Good coverage |
| June | 21.5°C | 9°C | 51 mm | 8.4 | 16 h 09 | 74 | Good coverage |
| July | 25.8°C | 11.2°C | 30 mm | 4.4 | 15 h 47 | 86 | Good coverage |
| August | 26°C | 11.3°C | 45 mm | 5 | 14 h 22 | 84 | Strong coverage |
| September | 22.4°C | 8.5°C | 79 mm | 7.9 | 12 h 31 | 72 | Strong coverage |
| October | 14.9°C | 5°C | 214 mm | 14.7 | 10 h 42 | 16 | Strong coverage |
| November | 9.4°C | 1.7°C | 404 mm | 18.7 | 9 h 05 | 5 | Strong coverage |
| December | 6.1°C | -0.3°C | 379 mm | 18.9 | 8 h 16 | 5 | Strong coverage |
What has changed
Lake Cowichan runs +2.2°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+1.8
Feb
+0.2
Mar
+1.4
Apr
+1.9
May
+3.7
Jun
+2.7
Jul
+3.5
Aug
+3.8
Sep
+2.7
Oct
+1.8
Nov
+1.8
Dec
+0.9
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 15.0°C26 Jan 2014 | -15.0°C4 Jan 2004 | 189 mm3 Jan 2021 | 654 mm1961 · driest 30 mm in 1985 | 61 |
| February | 20.0°C27 Feb 1992 | -16.0°C19 Feb 1986 | 115 mm1 Feb 1991 | 573 mm1961 · driest 12 mm in 1993 | 59 |
| March | 24.0°C31 Mar 2016 | -12.5°C10 Mar 2009 | 137 mm17 Mar 1997 | 406 mm2011 · driest 4 mm in 1979 | 62 |
| April | 31.0°C30 Apr 2009 | -7.0°C14 Apr 1981 | 140 mm19 Apr 2010 | 320 mm1970 · driest 3 mm in 1998 | 62 |
| May | 35.0°C29 May 1983 | -1.5°C2 May 2006 | 92 mm23 May 1973 | 157 mm2022 · driest 6 mm in 1992 | 62 |
| June | 43.0°C28 Jun 2021 | 1.1°C2 Jun 1976 | 51 mm24 Jun 1971 | 116 mm1997 · driest 3 mm in 2015 | 62 |
| July | 40.0°C18 Jul 1995 | 3.0°C6 Jul 2002 | 43 mm16 Jul 1974 | 125 mm1983 · driest 0 mm in 2010 | 63 |
| August | 39.0°C12 Aug 2021 | 2.8°C25 Aug 1973 | 92 mm29 Aug 1991 | 215 mm1991 · driest 0 mm in 2002 | 64 |
| September | 39.0°C3 Sep 1988 | -1.7°C27 Sep 1972 | 126 mm29 Sep 2013 | 242 mm2013 · driest 0 mm in 1975 | 64 |
| October | 29.5°C1 Oct 1987 | -7.0°C31 Oct 2006 | 118 mm16 Oct 2016 | 557 mm1975 · driest 12 mm in 2002 | 64 |
| November | 22.5°C18 Nov 2008 | -17.0°C23 Nov 1985 | 111 mm13 Nov 2017 | 612 mm2017 · driest 69 mm in 1993 | 59 |
| December | 17.0°C8 Dec 2014 | -16.0°C1 Dec 1985 | 185 mm28 Dec 2022 | 593 mm1966 · driest 28 mm in 1986 | 61 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 13 | 7 | 2 |
| February | 0 | 0 | 13 | 4 | 2 |
| March | 0 | 0 | 10 | 5 | 1 |
| April | <1 | 0 | 4 | 4 | <1 |
| May | 4 | <1 | <1 | 2 | 0 |
| June | 6 | 2 | 0 | 1 | 0 |
| July | 15 | 6 | 0 | <1 | 0 |
| August | 15 | 6 | 0 | 1 | 0 |
| September | 8 | 2 | <1 | 2 | 0 |
| October | <1 | 0 | 2 | 5 | 0 |
| November | 0 | 0 | 9 | 8 | <1 |
| December | 0 | 0 | 13 | 7 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 92); on 2011–2025 it is June (86). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 59% | 32% | 72% | 4.2–8.0°C |
| February | <1% | 54% | 25% | 67% | 5.9–10.4°C |
| March | 1% | 56% | 23% | 62% | 8.1–12.3°C |
| April | 8% | 50% | 15% | 60% | 11.3–15.7°C |
| May | 28% | 36% | 8% | 40% | 15.1–21.1°C |
| June | 47% | 29% | 4% | 32% | 17.9–24.1°C |
| July | 72% | 17% | 3% | 15% | 21.4–28.1°C |
| August | 73% | 20% | 4% | 22% | 21.8–28.4°C |
| September | 53% | 27% | 9% | 31% | 18.5–24.4°C |
| October | 11% | 47% | 23% | 62% | 12.6–16.5°C |
| November | <1% | 62% | 35% | 80% | 7.3–10.6°C |
| December | 0% | 59% | 33% | 74% | 3.6–7.3°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 6048316
- NOAA station
- CA001012055 · LAKE COWICHAN
- Station distance
- 1 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 22 usable years
- Daylight
- Calculated from latitude 48.82°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.