Canada · 1991–2020

Best time to visit
Blenheim.

June leads for comfortable weather in Blenheim: typically 24.8°C by day, 13.3°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.8°C

Typical low13.3°C

Rain in June70 mm

Comfort

June

June · August · September

84climate match

Beach

July

July · August · June

63climate match

Outdoors

September

September · May · June

76climate match

The weakest month is January, scoring 5 against June’s 84 — days reach only -0.6°C, 25° 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

5-0.6° / -8.5°

Feb

5-0.1° / -8.7°

Mar

55.5° / -3.4°

Apr

2712.7° / 1.7°

May

5719.5° / 8°

Jun

8424.8° / 13.3°

Jul

7627.2° / 15.4°

Aug

8326° / 14.4°

Sep

7922.9° / 11.1°

Oct

4415.9° / 5.5°

Nov

138.8° / 0.4°

Dec

52.3° / -4.3°

Monthly climate evidence for Blenheim — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 25 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.6°C	-8.5°C	86 mm	13.4	1.9°C	9 h 24	5	Good coverage
February	-0.1°C	-8.7°C	71 mm	11.6	0.7°C	10 h 29	5	Good coverage
March	5.5°C	-3.4°C	72 mm	11.6	1.3°C	11 h 48	5	Good coverage
April	12.7°C	1.7°C	76 mm	10.1	4.3°C	13 h 18	27	Good coverage
May	19.5°C	8°C	92 mm	11.5	10.2°C	14 h 34	57	Good coverage
June	24.8°C	13.3°C	70 mm	9	17.5°C	15 h 15	84	Good coverage
July	27.2°C	15.4°C	90 mm	8.7	22.7°C	14 h 59	76	Good coverage
August	26°C	14.4°C	73 mm	8	23.5°C	13 h 53	83	Good coverage
September	22.9°C	11.1°C	81 mm	7.2	21.2°C	12 h 26	79	Good coverage
October	15.9°C	5.5°C	77 mm	9.9	16.3°C	10 h 59	44	Good coverage
November	8.8°C	0.4°C	71 mm	9.3	10.6°C	9 h 43	13	Good coverage
December	2.3°C	-4.3°C	77 mm	12.1	5.6°C	9 h 06	5	Good coverage

Records at RIDGETOWN RCS, 2003–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.7°C7 Jan 2008	-27.4°C25 Jan 2004	36 mm13 Jan 2013	227 mm2010 · driest 23 mm in 2022	21
February	19.0°C24 Feb 2017	-31.9°C20 Feb 2015	36 mm11 Feb 2009	143 mm2008 · driest 13 mm in 2024	22
March	24.9°C27 Mar 2007	-25.1°C3 Mar 2003	40 mm30 Mar 2017	147 mm2008 · driest 25 mm in 2005	22
April	28.1°C19 Apr 2005	-8.4°C7 Apr 2007	45 mm11 Apr 2013	152 mm2009 · driest 32 mm in 2012	22
May	33.2°C29 May 2006	-4.5°C9 May 2020	55 mm31 May 2015	153 mm2011 · driest 26 mm in 2023	21
June	35.0°C25 Jun 2005	0.6°C4 Jun 2009	50 mm26 Jun 2021	113 mm2008 · driest 39 mm in 2007	20
July	35.5°C21 Jul 2011	4.5°C2 Jul 2007	75 mm28 Jul 2019	232 mm2023 · driest 31 mm in 2009	21
August	33.2°C30 Aug 2010	3.3°C26 Aug 2017	59 mm5 Aug 2019	132 mm2020 · driest 19 mm in 2010	21
September	35.1°C10 Sep 2013	-0.7°C19 Sep 2020	69 mm22 Sep 2021	159 mm2014 · driest 18 mm in 2004	21
October	31.9°C8 Oct 2007	-5.7°C30 Oct 2008	54 mm28 Oct 2015	135 mm2021 · driest 12 mm in 2005	21
November	23.5°C4 Nov 2015	-18.5°C13 Nov 2019	62 mm29 Nov 2011	140 mm2011 · driest 21 mm in 2012	20
December	15.9°C11 Dec 2021	-27.0°C28 Dec 2017	35 mm25 Dec 2009	183 mm2008 · driest 24 mm in 2014	21

Typical days per month at RIDGETOWN RCS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	27	2
February	0	0	26	2
March	0	0	22	2
April	<1	0	12	3
May	6	<1	2	3
June	14	3	0	2
July	23	6	0	3
August	19	2	0	2
September	9	1	<1	3
October	1	<1	5	2
November	0	0	15	2
December	0	0	23	2

How often, not how much — every day in RIDGETOWN RCS’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%	41%	8%	54%	-3.9–2.9°C
February	0%	38%	7%	48%	-3.9–4.2°C
March	2%	34%	7%	44%	2.6–8.8°C
April	9%	34%	9%	50%	10.9–14.3°C
May	33%	35%	9%	42%	17.4–22.1°C
June	63%	29%	7%	35%	23.2–26.3°C
July	71%	29%	10%	32%	25.0–29.2°C
August	73%	26%	8%	23%	24.8–27.6°C
September	61%	24%	8%	27%	21.5–24.9°C
October	19%	32%	8%	40%	14.6–18.3°C
November	2%	30%	6%	37%	5.8–11.4°C
December	0%	38%	8%	54%	-1.1–6.3°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 5903742
NOAA station: CA006137154 · RIDGETOWN RCS
Station distance: 16.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 42.33°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 25 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 RIDGETOWN RCS is what differs

Ridgetown→Beechwood→Cairo→Croton→Florence→Kent Bridge→

Or put two places side by side: Blenheim vs Ridgetown

Best time to visitBlenheim.