Greece · 1991–2020

Best time to visit
Spétses.

October leads for comfortable weather in Spétses: typically 23.9°C by day, 16.1°C at night, with 33 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.9°C

Typical low16.1°C

Rain in October33 mm

Comfort

October

October · May · April

98climate match

Beach

September

September · June · July

97climate match

Outdoors

April

April · November · March

96climate match

The weakest month is January, scoring 46 against October’s 98 — days reach only 13.5°C, 10° 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

4613.5° / 6.7°

Feb

5114.2° / 6.9°

Mar

6216.5° / 8.7°

Apr

8120.2° / 11.6°

May

9425.1° / 16°

Jun

7030.1° / 20.7°

Jul

5533.1° / 23.4°

Aug

5333.3° / 23.7°

Sep

7528.9° / 20°

Oct

9823.9° / 16.1°

Nov

7218.8° / 11.9°

Dec

5114.8° / 8.6°

Monthly climate evidence for Spétses — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 13 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	13.5°C	6.7°C	48 mm	5.5	15.6°C	9 h 51	46	Strong coverage
February	14.2°C	6.9°C	36 mm	4.9	15.0°C	10 h 45	51	Strong coverage
March	16.5°C	8.7°C	42 mm	4.3	15.2°C	11 h 51	62	Strong coverage
April	20.2°C	11.6°C	25 mm	3.4	16.2°C	13 h 06	81	Strong coverage
May	25.1°C	16°C	15 mm	2.3	19.0°C	14 h 09	94	Strong coverage
June	30.1°C	20.7°C	9 mm	1.3	22.8°C	14 h 43	70	Strong coverage
July	33.1°C	23.4°C	6 mm	0.5	25.3°C	14 h 29	55	Strong coverage
August	33.3°C	23.7°C	3 mm	0.5	26.0°C	13 h 35	53	Strong coverage
September	28.9°C	20°C	17 mm	2.1	24.9°C	12 h 22	75	Strong coverage
October	23.9°C	16.1°C	33 mm	3.1	22.9°C	11 h 10	98	Strong coverage
November	18.8°C	11.9°C	62 mm	5.1	20.4°C	10 h 07	72	Strong coverage
December	14.8°C	8.6°C	62 mm	6.3	17.7°C	9 h 37	51	Strong coverage

What has changed

Spétses runs +2.0°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

+1.0

Feb

+1.7

Mar

+1.8

Apr

+2.5

May

+2.4

Jun

+2.8

Jul

+2.8

Aug

+3.0

Sep

+2.0

Oct

+1.6

Nov

+1.2

Dec

+0.9

October daytime highs, 2011–2024. Last recorded: 26.6°C.

Records at HELLINIKON, 1955–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.4°C9 Jan 2021	-2.9°C14 Jan 1968	82 mm17 Jan 1985	147 mm2019 · driest 0 mm in 2007	69
February	24.2°C16 Feb 2016	-4.2°C18 Feb 2008	83 mm4 Feb 2011	129 mm1988 · driest 0 mm in 1957	69
March	27.0°C26 Mar 2001	-1.8°C10 Mar 2011	142 mm26 Mar 1998	205 mm1998 · driest 1 mm in 1990	69
April	30.9°C25 Apr 2018	0.6°C9 Apr 2003	92 mm1 Apr 1987	113 mm1984 · driest 0 mm in 2005	69
May	35.6°C29 May 2008	8.0°C4 May 1970	40 mm7 May 1994	71 mm1963 · driest 0 mm in 1990	69
June	39.8°C27 Jun 2025	11.5°C2 Jun 1990	23 mm19 Jun 2019	39 mm2017 · driest 0 mm in 1972	68
July	42.0°C7 Jul 1988	15.5°C10 Jul 1984	46 mm3 Jul 1983	61 mm1999 · driest 0 mm in 1996	68
August	43.0°C3 Aug 2021	16.0°C25 Aug 1972	70 mm25 Aug 1972	73 mm1972 · driest 0 mm in 1956	68
September	37.6°C1 Sep 1956	10.4°C30 Sep 1970	83 mm7 Sep 2023	101 mm2023 · driest 0 mm in 2021	67
October	33.8°C1 Oct 1991	5.4°C18 Oct 2011	81 mm28 Oct 1978	231 mm1955 · driest 0 mm in 1993	67
November	28.6°C4 Nov 2023	1.4°C26 Nov 1976	97 mm5 Nov 2001	203 mm1993 · driest 0 mm in 2011	67
December	22.8°C1 Dec 2023	-1.8°C20 Dec 2001	80 mm7 Dec 1991	172 mm2014 · driest 0 mm in 2015	68

Typical days per month at HELLINIKON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	<1	1
February	0	0	<1	1
March	<1	0	<1	1
April	2	<1	0	<1
May	15	2	0	<1
June	27	14	0	<1
July	29	26	0	<1
August	29	28	0	<1
September	25	10	0	<1
October	12	<1	0	1
November	<1	0	0	2
December	0	0	<1	2

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 98); on 2011–2025 it is October (96). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in HELLINIKON’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	1%	19%	4%	18%	11.7–15.2°C
February	3%	18%	4%	15%	12.0–16.9°C
March	10%	16%	4%	12%	14.4–18.1°C
April	48%	12%	2%	8%	18.1–21.5°C
May	89%	7%	1%	2%	22.8–26.6°C
June	96%	4%	<1%	<1%	28.0–31.4°C
July	98%	2%	<1%	<1%	30.7–34.0°C
August	98%	2%	<1%	<1%	30.5–34.3°C
September	94%	6%	2%	4%	27.1–30.3°C
October	77%	12%	5%	10%	21.6–25.7°C
November	37%	18%	6%	17%	17.1–21.2°C
December	5%	21%	7%	20%	13.4–17.1°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.

1955Each stripe is one year’s mean temperature against the 61-year average. Warmest: 2024. Coolest: 1983.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 253356
NOAA station: GR000016716 · HELLINIKON
Station distance: 88 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 37.26°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 13 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 HELLINIKON is what differs

Athens→Piraeus→Peristéri→Kallithéa→Acharnés→Níkaia→

Or put two places side by side: Spétses vs Athens

Best time to visitSpétses.