Canada · 1991–2020

Best time to visit
Penetanguishene.

August leads for comfortable weather in Penetanguishene: typically 24.9°C by day, 15.8°C at night, with 66 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.9°C

Typical low15.8°C

Rain in August66 mm

Comfort

August

August · June · July

86climate match

Beach

July

July · August · June

65climate match

Outdoors

May

May · September · June

77climate match

The weakest month is January, scoring 5 against August’s 86 — days reach only -2.6°C, 27° below the 24°C the score treats as ideal.

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

5-2.6° / -12.1°

Feb

5-1.7° / -11.8°

Mar

53.2° / -7°

Apr

1910.6° / 0.8°

May

5718.5° / 7.7°

Jun

8423.3° / 13.4°

Jul

8325.6° / 16.3°

Aug

8624.9° / 15.8°

Sep

7221.2° / 11.8°

Oct

3113.6° / 5.7°

Nov

56.8° / 0.1°

Dec

50.8° / -6.3°

Monthly climate evidence for Penetanguishene — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 19 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-2.6°C	-12.1°C	102 mm	14.8	2.8°C	9 h 09	5	Good coverage
February	-1.7°C	-11.8°C	64 mm	10.1	1.4°C	10 h 21	5	Good coverage
March	3.2°C	-7°C	63 mm	8.6	1.1°C	11 h 46	5	Good coverage
April	10.6°C	0.8°C	70 mm	10	2.0°C	13 h 25	19	Good coverage
May	18.5°C	7.7°C	76 mm	9.5	4.5°C	14 h 48	57	Good coverage
June	23.3°C	13.4°C	77 mm	8.4	10.9°C	15 h 34	84	Good coverage
July	25.6°C	16.3°C	69 mm	8.5	18.5°C	15 h 16	83	Good coverage
August	24.9°C	15.8°C	66 mm	8.6	20.4°C	14 h 03	86	Good coverage
September	21.2°C	11.8°C	84 mm	10.3	18.5°C	12 h 28	72	Good coverage
October	13.6°C	5.7°C	91 mm	14.1	13.3°C	10 h 53	31	Good coverage
November	6.8°C	0.1°C	90 mm	13.5	8.7°C	9 h 30	5	Good coverage
December	0.8°C	-6.3°C	99 mm	14.4	5.4°C	8 h 49	5	Good coverage

Records at MIDLAND WATER POLLUTION CONTRO, 1974–2017
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.0°C13 Jan 2005	-36.0°C27 Jan 2003	35 mm10 Jan 2003	213 mm1977 · driest 11 mm in 2012	35
February	15.0°C26 Feb 2000	-36.0°C18 Feb 1979	42 mm28 Feb 1984	158 mm1985 · driest 17 mm in 1998	33
March	23.5°C30 Mar 1998	-31.0°C3 Mar 2003	54 mm30 Mar 2016	136 mm2016 · driest 11 mm in 1999	32
April	30.0°C16 Apr 2002	-16.5°C7 Apr 2003	41 mm21 Apr 1995	105 mm1979 · driest 16 mm in 2001	33
May	34.0°C28 May 2012	-3.0°C1 May 1978	73 mm23 May 2004	176 mm2004 · driest 11 mm in 2014	32
June	35.5°C21 Jun 1998	2.0°C9 Jun 1980	80 mm29 Jun 1996	146 mm1996 · driest 6 mm in 2006	33
July	34.5°C23 Jul 2012	4.0°C1 Jul 1982	89 mm3 Jul 1999	191 mm1999 · driest 7 mm in 2009	37
August	35.0°C11 Aug 2016	4.0°C28 Aug 1986	61 mm14 Aug 1981	163 mm1981 · driest 4 mm in 2009	35
September	34.0°C6 Sep 2007	0.0°C27 Sep 1980	80 mm5 Sep 1985	208 mm1986 · driest 16 mm in 2002	35
October	30.0°C4 Oct 2005	-5.0°C24 Oct 2008	46 mm14 Oct 2003	183 mm2001 · driest 27 mm in 1998	35
November	23.5°C5 Nov 2015	-19.0°C30 Nov 1995	37 mm13 Nov 1978	186 mm1995 · driest 15 mm in 2016	33
December	18.0°C3 Dec 1982	-31.0°C25 Dec 1980	50 mm20 Dec 1980	269 mm1985 · driest 12 mm in 1997	33

Typical days per month at MIDLAND WATER POLLUTION CONTRO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	4	11
February	0	0	23	2	7
March	0	0	25	2	5
April	<1	0	13	2	<1
May	4	<1	<1	2	0
June	11	3	0	2	0
July	16	3	0	2	0
August	15	3	0	2	0
September	7	1	0	2	0
October	<1	0	3	3	<1
November	0	0	14	3	4
December	0	0	23	3	9

How often, not how much — every day in MIDLAND WATER POLLUTION CONTRO’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	48%	13%	66%	-7.5–-0.5°C
February	0%	38%	9%	51%	-5.0–1.4°C
March	1%	31%	6%	42%	1.1–5.2°C
April	5%	30%	7%	36%	7.6–12.6°C
May	30%	31%	8%	40%	15.0–21.4°C
June	53%	29%	8%	32%	21.7–25.0°C
July	70%	26%	8%	27%	24.1–27.4°C
August	64%	28%	9%	32%	22.9–26.3°C
September	35%	35%	10%	46%	18.4–23.5°C
October	8%	38%	10%	51%	11.5–14.9°C
November	<1%	44%	10%	63%	3.6–10.1°C
December	0%	46%	12%	70%	-3.5–3.6°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.

1975Each stripe is one year’s mean temperature against the 25-year average. Warmest: 1998. Coolest: 1980.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6100932
NOAA station: CA006115127 · MIDLAND WATER POLLUTION CONTRO
Station distance: 4.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 44.78°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 19 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from MIDLAND WATER POLLUTION CONTRO is what differs

Midland→Bayview Park→Big Chute→Cedar Nook→Clearwater Beach→Cognashene→

Or put two places side by side: Penetanguishene vs Midland

Best time to visitPenetanguishene.

August

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Penetanguishene.

The whole year,
without the guesswork.

Nearby, measured,
and named.