France · 1991–2020

Best time to visit
Trévou-Tréguignec.

July leads for comfortable weather in Trévou-Tréguignec: typically 20.4°C by day, 14°C at night, with 45 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high20.4°C

Typical low14°C

Rain in July45 mm

Comfort

July

July · August · September

80climate match

Beach

July

July · August · September

48climate match

Outdoors

September

September · July · June

87climate match

The weakest month is January, scoring 17 against July’s 80 — days reach only 10.2°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

1710.2° / 5.6°

Feb

2010.2° / 5.1°

Mar

3211.7° / 6.1°

Apr

4513.8° / 7.6°

May

5515.9° / 9.8°

Jun

7018.5° / 12.3°

Jul

8020.4° / 14°

Aug

8020.7° / 14.3°

Sep

7719.4° / 13.3°

Oct

5116.8° / 11.2°

Nov

3213.2° / 8.4°

Dec

1810.8° / 6.2°

Monthly climate evidence for Trévou-Tréguignec — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 7 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	10.2°C	5.6°C	97 mm	15.8	10.5°C	8 h 40	17	Good coverage
February	10.2°C	5.1°C	87 mm	13.6	9.7°C	10 h 05	20	Good coverage
March	11.7°C	6.1°C	61 mm	12	9.4°C	11 h 43	32	Good coverage
April	13.8°C	7.6°C	52 mm	9.5	10.3°C	13 h 37	45	Good coverage
May	15.9°C	9.8°C	59 mm	9.5	11.8°C	15 h 14	55	Good coverage
June	18.5°C	12.3°C	48 mm	8.2	13.8°C	16 h 09	70	Good coverage
July	20.4°C	14°C	45 mm	8.2	15.7°C	15 h 47	80	Good coverage
August	20.7°C	14.3°C	56 mm	8.9	16.9°C	14 h 22	80	Good coverage
September	19.4°C	13.3°C	37 mm	7.4	16.9°C	12 h 31	77	Good coverage
October	16.8°C	11.2°C	93 mm	13.8	15.7°C	10 h 42	51	Good coverage
November	13.2°C	8.4°C	99 mm	15.6	13.8°C	9 h 05	32	Good coverage
December	10.8°C	6.2°C	109 mm	16.3	12.0°C	8 h 17	18	Good coverage

Records at PLOUMANAC'H PERROS GUIREC, 2001–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C24 Jan 2016	-3.1°C9 Jan 2009	38 mm17 Jan 2024	182 mm2016 · driest 2 mm in 2002	23
February	20.1°C4 Feb 2004	-4.9°C11 Feb 2012	101 mm8 Feb 2003	141 mm2016 · driest 7 mm in 2002	23
March	25.0°C30 Mar 2021	-1.8°C1 Mar 2005	19 mm28 Mar 2016	126 mm2006 · driest 0 mm in 2002	23
April	26.9°C18 Apr 2018	1.2°C5 Apr 2013	21 mm8 Apr 2022	144 mm2012 · driest 1 mm in 2011	23
May	26.7°C17 May 2022	3.2°C6 May 2007	36 mm6 May 2017	114 mm2008 · driest 10 mm in 2002	23
June	29.1°C21 Jun 2017	7.0°C7 Jun 2009	34 mm21 Jun 2021	94 mm2012 · driest 8 mm in 2004	23
July	32.0°C18 Jul 2022	10.3°C10 Jul 2004	56 mm7 Jul 2004	97 mm2007 · driest 8 mm in 2022	24
August	31.1°C23 Aug 2016	10.7°C26 Aug 2018	46 mm24 Aug 2024	111 mm2015 · driest 1 mm in 2001	24
September	30.3°C17 Sep 2003	8.3°C19 Sep 2010	30 mm2 Sep 2008	75 mm2008 · driest 5 mm in 2003	24
October	27.1°C3 Oct 2011	3.3°C22 Oct 2011	61 mm2 Oct 2020	202 mm2020 · driest 4 mm in 2001	24
November	22.0°C1 Nov 2015	-0.7°C29 Nov 2010	31 mm13 Nov 2010	167 mm2023 · driest 28 mm in 2004	24
December	18.3°C19 Dec 2015	-2.4°C19 Dec 2007	31 mm5 Dec 2010	161 mm2020 · driest 5 mm in 2001	24

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

How often, not how much — every day in PLOUMANAC'H PERROS GUIREC’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%	52%	8%	66%	8.9–11.3°C
February	<1%	48%	7%	70%	8.5–12.1°C
March	1%	40%	5%	48%	10.8–12.9°C
April	3%	30%	4%	38%	12.4–15.4°C
May	5%	30%	4%	30%	15.0–17.4°C
June	19%	27%	4%	32%	17.6–19.5°C
July	44%	29%	3%	36%	19.2–21.8°C
August	46%	30%	5%	38%	19.9–21.8°C
September	29%	28%	3%	39%	18.1–21.1°C
October	8%	44%	8%	58%	15.6–18.6°C
November	<1%	52%	10%	69%	12.1–14.6°C
December	0%	53%	11%	71%	9.4–12.2°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.

2002Each stripe is one year’s mean temperature against the 21-year average. Warmest: 2023. Coolest: 2010.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2971723
NOAA station: FRM00007117 · PLOUMANAC'H PERROS GUIREC
Station distance: 8.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 48.81°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 7 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 PLOUMANAC'H PERROS GUIREC is what differs

Paimpol→Plouha→Ploubazlanec→Plouézec→Tréguier→Pleubian→

Or put two places side by side: Trévou-Tréguignec vs Paimpol

Best time to visitTrévou-Tréguignec.

July

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Trévou-Tréguignec.

The whole year,
without the guesswork.

Nearby, measured,
and named.