Canada · 1991–2020

Best time to visit
Port Perry.

August leads for comfortable weather in Port Perry: typically 24.9°C by day, 14°C at night, with 85 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.9°C

Typical low14°C

Rain in August85 mm

Comfort

August

August · June · July

83climate match

Beach

July

July · August · June

55climate match

Outdoors

September

September · May · June

78climate match

The weakest month is January, scoring 5 against August’s 83 — days reach only -3.1°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

5-3.1° / -11.3°

Feb

5-2.5° / -11.6°

Mar

53.6° / -5.9°

Apr

1911.3° / 0.7°

May

5518.7° / 7.1°

Jun

7923.5° / 12.5°

Jul

7925.8° / 14.7°

Aug

8324.9° / 14°

Sep

6921.2° / 10.4°

Oct

2913.3° / 4.5°

Nov

57° / -0.8°

Dec

50.4° / -6.5°

Monthly climate evidence for Port Perry — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 26 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-3.1°C	-11.3°C	62 mm	12.2	3.6°C	9 h 13	5	Good coverage
February	-2.5°C	-11.6°C	58 mm	10.3	2.9°C	10 h 23	5	Good coverage
March	3.6°C	-5.9°C	63 mm	10	2.8°C	11 h 47	5	Good coverage
April	11.3°C	0.7°C	79 mm	10.8	3.6°C	13 h 23	19	Good coverage
May	18.7°C	7.1°C	85 mm	9.9	6.6°C	14 h 44	55	Good coverage
June	23.5°C	12.5°C	93 mm	10.2	14.0°C	15 h 29	79	Good coverage
July	25.8°C	14.7°C	95 mm	9.9	19.4°C	15 h 11	79	Good coverage
August	24.9°C	14°C	85 mm	8.4	21.1°C	14 h 01	83	Good coverage
September	21.2°C	10.4°C	94 mm	9	19.1°C	12 h 27	69	Good coverage
October	13.3°C	4.5°C	97 mm	12.8	13.2°C	10 h 55	29	Good coverage
November	7°C	-0.8°C	85 mm	12.3	7.8°C	9 h 34	5	Good coverage
December	0.4°C	-6.5°C	70 mm	12.1	5.0°C	8 h 54	5	Good coverage

Records at BLACKSTOCK, 2001–2016
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.0°C13 Jan 2005	-31.5°C3 Jan 2014	28 mm17 Jan 2006	90 mm2006 · driest 27 mm in 2002	15
February	13.0°C3 Feb 2016	-31.0°C14 Feb 2016	25 mm11 Feb 2009	109 mm2008 · driest 16 mm in 2004	15
March	25.5°C22 Mar 2012	-31.5°C3 Mar 2003	44 mm13 Mar 2010	116 mm2016 · driest 17 mm in 2013	15
April	27.0°C19 Apr 2008	-12.5°C6 Apr 2003	57 mm3 Apr 2009	179 mm2009 · driest 29 mm in 2010	15
May	32.0°C29 May 2006	-3.0°C4 May 2005	56 mm27 May 2009	167 mm2002 · driest 18 mm in 2016	15
June	32.5°C17 Jun 2006	2.0°C1 Jun 2009	59 mm1 Jun 2004	175 mm2015 · driest 15 mm in 2001	16
July	34.5°C11 Jul 2005	4.5°C2 Jul 2001	71 mm24 Jul 2011	173 mm2006 · driest 32 mm in 2001	16
August	36.0°C8 Aug 2001	4.0°C31 Aug 2006	61 mm7 Aug 2011	190 mm2011 · driest 23 mm in 2002	15
September	33.5°C9 Sep 2002	1.0°C16 Sep 2007	41 mm28 Sep 2009	144 mm2014 · driest 36 mm in 2004	15
October	29.0°C8 Oct 2007	-7.0°C29 Oct 2013	42 mm28 Oct 2015	151 mm2013 · driest 48 mm in 2004	15
November	21.5°C5 Nov 2015	-18.0°C29 Nov 2013	46 mm10 Nov 2002	147 mm2005 · driest 27 mm in 2012	15
December	15.5°C5 Dec 2001	-32.0°C20 Dec 2004	29 mm1 Dec 2006	143 mm2008 · driest 21 mm in 2002	15

Typical days per month at BLACKSTOCK, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	1	10
February	0	0	27	2	9
March	<1	0	26	2	5
April	<1	0	16	2	2
May	4	<1	3	2	<1
June	11	3	0	3	0
July	20	4	0	3	0
August	17	2	0	3	0
September	6	<1	0	3	0
October	<1	0	7	3	<1
November	0	0	18	3	4
December	0	0	28	2	8

How often, not how much — every day in BLACKSTOCK’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%	39%	4%	61%	-6.3–0.5°C
February	0%	37%	6%	55%	-5.6–0.6°C
March	<1%	32%	5%	40%	0.7–7.0°C
April	8%	36%	8%	53%	9.4–13.3°C
May	32%	32%	8%	43%	16.7–20.9°C
June	54%	34%	11%	43%	21.8–25.4°C
July	67%	32%	8%	43%	23.9–27.5°C
August	69%	27%	9%	28%	23.4–26.2°C
September	47%	30%	11%	38%	19.7–23.3°C
October	10%	41%	11%	60%	11.7–14.3°C
November	<1%	41%	9%	61%	4.4–9.3°C
December	0%	39%	7%	55%	-2.6–3.4°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 7499201
NOAA station: CA006150790 · BLACKSTOCK
Station distance: 8.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 44.11°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 26 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 BLACKSTOCK is what differs

Caesarea→Blackstock→Greenbank→Aldred's Beach→Burton→Cadmus→

Or put two places side by side: Port Perry vs Caesarea

Best time to visitPort Perry.