Guernsey · 1991–2020

Best time to visit
Vale Parish.

July leads for comfortable weather in Vale Parish: typically 19.7°C by day, 13.8°C at night, with 43 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high19.7°C

Typical low13.8°C

Rain in July43 mm

Comfort

July

July · August · September

79climate match

Beach

July

July · August · September

46climate match

Outdoors

July

July · June · August

86climate match

The weakest month is December, scoring 14 against July’s 79 — days reach only 10.1°C, 14° 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

159.1° / 5.3°

Feb

188.9° / 4.9°

Mar

2810.4° / 5.8°

Apr

3912.5° / 7.1°

May

5515.3° / 9.5°

Jun

6817.8° / 11.8°

Jul

7919.7° / 13.8°

Aug

7719.8° / 14.3°

Sep

7018.1° / 13.2°

Oct

4615.2° / 11.2°

Nov

2712.1° / 8.4°

Dec

1410.1° / 6.1°

Monthly climate evidence for Vale Parish — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 15 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	9.1°C	5.3°C	93 mm	14.2	10.4°C	8 h 35	15	Strong coverage
February	8.9°C	4.9°C	76 mm	12	9.5°C	10 h 02	18	Strong coverage
March	10.4°C	5.8°C	63 mm	10.4	9.2°C	11 h 43	28	Strong coverage
April	12.5°C	7.1°C	54 mm	9.4	9.9°C	13 h 39	39	Strong coverage
May	15.3°C	9.5°C	49 mm	8.2	11.5°C	15 h 19	55	Strong coverage
June	17.8°C	11.8°C	48 mm	7.3	13.6°C	16 h 15	68	Strong coverage
July	19.7°C	13.8°C	43 mm	7.2	15.6°C	15 h 53	79	Strong coverage
August	19.8°C	14.3°C	57 mm	8.4	16.9°C	14 h 25	77	Strong coverage
September	18.1°C	13.2°C	55 mm	8.5	17.0°C	12 h 32	70	Strong coverage
October	15.2°C	11.2°C	98 mm	13.7	15.9°C	10 h 40	46	Strong coverage
November	12.1°C	8.4°C	107 mm	15.6	14.1°C	9 h 01	27	Strong coverage
December	10.1°C	6.1°C	120 mm	16.3	12.0°C	8 h 10	14	Strong coverage

What has changed

Vale Parish runs +1.3°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

+0.9

Feb

+1.3

Mar

+1.4

Apr

+1.9

May

+1.3

Jun

+1.4

Jul

+1.3

Aug

+0.9

Sep

+1.2

Oct

+1.1

Nov

+1.2

Dec

+1.5

July daytime highs, 2011–2025. Last recorded: 21.1°C.

Records at GUERNSEY: AIRPORT, 1960–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.3°C9 Jan 2007	-7.8°C20 Jan 1963	36 mm11 Jan 2001	210 mm2001 · driest 15 mm in 1992	67
February	16.1°C26 Feb 2019	-7.2°C7 Feb 1991	59 mm18 Feb 1978	183 mm1978 · driest 5 mm in 1965	67
March	20.1°C31 Mar 2021	-3.0°C1 Mar 2018	119 mm18 Mar 1960	191 mm1960 · driest 3 mm in 1961	67
April	24.5°C10 Apr 2020	-1.4°C11 Apr 1986	34 mm30 Apr 2017	130 mm1966 · driest 3 mm in 1980	67
May	30.8°C24 May 2026	0.1°C2 May 1979	38 mm22 May 2014	129 mm1994 · driest 4 mm in 1989	67
June	33.8°C22 Jun 2026	5.4°C1 Jun 1975	47 mm16 Jun 1970	130 mm1986 · driest 1 mm in 1976	67
July	32.6°C18 Jul 2016	8.4°C17 Jul 1980	63 mm7 Jul 2004	120 mm1960 · driest 1 mm in 2022	66
August	29.5°C11 Aug 2022	9.2°C28 Aug 1986	56 mm22 Aug 1973	113 mm2015 · driest 9 mm in 1976	66
September	30.6°C1 Sep 1961	5.8°C28 Sep 1974	37 mm23 Sep 2012	159 mm1976 · driest 7 mm in 1997	66
October	24.3°C7 Oct 2023	3.5°C28 Oct 2003	59 mm12 Oct 2014	234 mm1960 · driest 3 mm in 1978	66
November	17.8°C23 Nov 2024	-0.8°C29 Nov 2010	39 mm15 Nov 1975	235 mm2009 · driest 16 mm in 1978	66
December	14.6°C1 Dec 1985	-3.8°C25 Dec 1963	43 mm4 Dec 2010	250 mm1999 · driest 0 mm in 1995	66

Typical days per month at GUERNSEY: AIRPORT, 1991–2020
Month	Days 25°C+	Frost nights	Heavy rain (10 mm+)
January	0	1	3
February	0	<1	2
March	0	<1	2
April	0	0	1
May	<1	0	1
June	1	0	2
July	1	0	1
August	1	0	2
September	<1	0	2
October	0	0	3
November	0	<1	4
December	0	<1	4

How often, not how much — every day in GUERNSEY: AIRPORT’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%	49%	10%	64%	7.2–10.2°C
February	0%	43%	8%	58%	6.8–10.5°C
March	0%	36%	6%	47%	8.3–11.6°C
April	2%	31%	4%	38%	10.5–13.6°C
May	7%	27%	4%	32%	13.2–16.8°C
June	17%	23%	4%	28%	15.6–19.3°C
July	31%	23%	3%	26%	17.6–21.2°C
August	29%	26%	5%	29%	18.1–21.0°C
September	14%	30%	6%	41%	16.3–19.4°C
October	1%	42%	10%	56%	14.0–16.6°C
November	0%	52%	12%	68%	10.6–13.1°C
December	0%	51%	12%	69%	8.4–11.0°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.

1960Each stripe is one year’s mean temperature against the 65-year average. Warmest: 2022. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 13527037
NOAA station: UKE00107663 · GUERNSEY: AIRPORT
Station distance: 9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 49.49°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 15 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 GUERNSEY: AIRPORT is what differs

Saint Peter Port→Saint Sampson→Saint Pierre du Bois Parish→Forest Parish→Sark→La Seigneurie→

Or put two places side by side: Vale Parish vs Saint Peter Port

Best time to visitVale Parish.

July

July

July

The whole year,without the guesswork.

Vale Parish runs +1.3°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Vale Parish.

The whole year,
without the guesswork.

Vale Parish runs +1.3°C
on the 1961–1990 baseline.

Nearby, measured,
and named.