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Croatia · 1991–2020

Best time to visit
Žrnovo.

May leads for comfortable weather in Žrnovo: typically 22.3°C by day, 15.3°C at night, with 36 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high22.3°C

Typical low15.3°C

Rain in May36 mm

Comfort

May

May · September · June

92climate match

Beach

July

July · August · June

95climate match

Outdoors

April

April · October · May

83climate match

The weakest month is January, scoring 33 against May’s 92 — days reach only 10.9°C, 13° 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

3310.9° / 7.1°

Feb

3711.3° / 6.8°

Mar

4813.9° / 8.7°

Apr

6617.4° / 11.3°

May

9222.3° / 15.3°

Jun

8326.8° / 19.3°

Jul

6829.9° / 21.8°

Aug

6730.1° / 22.2°

Sep

8725.1° / 18.7°

Oct

8020.2° / 15.5°

Nov

5315.8° / 11.7°

Dec

3812.3° / 8.4°

Monthly climate evidence for Žrnovo — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	10.9°C	7.1°C	73 mm	7.4	14.2°C	9 h 20	33	Strong coverage
February	11.3°C	6.8°C	56 mm	6.9	13.6°C	10 h 27	37	Strong coverage
March	13.9°C	8.7°C	62 mm	7.1	13.8°C	11 h 47	48	Strong coverage
April	17.4°C	11.3°C	50 mm	6.7	15.1°C	13 h 20	66	Strong coverage
May	22.3°C	15.3°C	36 mm	4.8	18.2°C	14 h 37	92	Strong coverage
June	26.8°C	19.3°C	32 mm	3.7	22.1°C	15 h 20	83	Strong coverage
July	29.9°C	21.8°C	14 mm	2.1	24.3°C	15 h 03	68	Strong coverage
August	30.1°C	22.2°C	22 mm	2.2	25.1°C	13 h 56	67	Strong coverage
September	25.1°C	18.7°C	47 mm	4.6	23.2°C	12 h 26	87	Strong coverage
October	20.2°C	15.5°C	60 mm	6.1	21.0°C	10 h 58	80	Strong coverage
November	15.8°C	11.7°C	97 mm	8.7	18.6°C	9 h 40	53	Strong coverage
December	12.3°C	8.4°C	83 mm	8.4	16.2°C	9 h 02	38	Strong coverage

What has changed

Žrnovo runs +1.8°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

+1.4

Mar

+1.5

Apr

+1.7

May

+1.4

Jun

+2.7

Jul

+2.4

Aug

+3.0

Sep

+1.9

Oct

+1.5

Nov

+1.7

Dec

+1.5

May daytime highs, 2011–2023. Last recorded: 22.5°C.

Records at LASTOVO, 1948–2023
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.3°C15 Jan 1993	-6.8°C23 Jan 1963	93 mm17 Jan 2017	311 mm1980 · driest 2 mm in 1991	74
February	19.2°C25 Feb 2021	-3.5°C4 Feb 1956	64 mm19 Feb 1973	233 mm1986 · driest 2 mm in 1949	74
March	22.5°C30 Mar 2017	-4.7°C1 Mar 1963	74 mm11 Mar 1956	228 mm1971 · driest 4 mm in 1968	74
April	28.3°C29 Apr 2018	1.7°C9 Apr 2012	45 mm21 Apr 1967	145 mm1967 · driest 2 mm in 1955	74
May	32.3°C29 May 2005	4.5°C3 May 1970	84 mm29 May 1987	151 mm2019 · driest 0 mm in 1973	74
June	37.3°C28 Jun 2022	9.3°C8 Jun 2005	86 mm15 Jun 2023	132 mm2023 · driest 0 mm in 1950	74
July	38.1°C23 Jul 2007	12.0°C30 Jul 1955	51 mm23 Jul 1976	97 mm1976 · driest 0 mm in 2017	74
August	38.3°C3 Aug 1998	11.5°C19 Aug 1949	105 mm25 Aug 1995	188 mm1995 · driest 0 mm in 1962	74
September	33.9°C1 Sep 2015	8.3°C30 Sep 1959	144 mm27 Sep 2004	198 mm1989 · driest 0 mm in 2021	74
October	28.2°C1 Oct 1991	5.6°C29 Oct 1997	156 mm7 Oct 1955	261 mm1982 · driest 0 mm in 1965	74
November	24.7°C1 Nov 2022	-2.8°C30 Nov 1957	170 mm7 Nov 2005	274 mm1958 · driest 20 mm in 1967	74
December	18.8°C1 Dec 2010	-4.5°C1 Dec 1957	91 mm14 Dec 2009	278 mm1969 · driest 0 mm in 2015	75

Typical days per month at LASTOVO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	<1	2
February	0	0	<1	2
March	0	0	<1	2
April	<1	0	0	2
May	7	<1	0	1
June	21	6	0	<1
July	30	16	0	<1
August	30	17	0	<1
September	16	1	0	1
October	1	0	0	2
November	0	0	0	3
December	0	0	<1	3

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 91); on 2011–2025 it is May (92). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in LASTOVO’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%	27%	8%	32%	8.9–12.3°C
February	0%	26%	7%	33%	9.4–13.1°C
March	<1%	24%	7%	28%	11.7–15.3°C
April	14%	22%	5%	22%	15.1–18.4°C
May	61%	16%	3%	13%	19.2–23.4°C
June	85%	13%	3%	8%	24.1–28.2°C
July	93%	7%	1%	3%	27.1–31.0°C
August	91%	9%	3%	6%	26.7–31.2°C
September	82%	15%	5%	12%	22.8–26.4°C
October	45%	20%	7%	23%	18.5–21.2°C
November	3%	30%	9%	38%	14.0–17.1°C
December	0%	28%	9%	36%	10.8–13.7°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.

1949Each stripe is one year’s mean temperature against the 74-year average. Warmest: 2023. Coolest: 1980.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3186331
NOAA station: HRE00105196 · LASTOVO
Station distance: 26.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 42.95°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 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 LASTOVO is what differs

Vela Luka→Blato→Korčula→Orebić→Lumbarda→Smokvica→

Or put two places side by side: Žrnovo vs Vela Luka

Best time to visitŽrnovo.

May

July

April

The whole year,without the guesswork.

Žrnovo runs +1.8°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Žrnovo.

The whole year,
without the guesswork.

Žrnovo runs +1.8°C
on the 1961–1990 baseline.

Nearby, measured,
and named.