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Monaco · 1991–2020

Best time to visit
Monte-Carlo.

June leads for comfortable weather in Monte-Carlo: typically 24.7°C by day, 18°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.7°C

Typical low18°C

Rain in June34 mm

Comfort

June

June · September · May

91climate match

Beach

August

August · July · June

97climate match

Outdoors

May

May · April · March

85climate match

The weakest month is January, scoring 40 against June’s 91 — 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

4013.5° / 5.4°

Feb

4513.7° / 5.8°

Mar

5615.6° / 8°

Apr

6317.5° / 10.5°

May

8621.2° / 14.3°

Jun

9124.7° / 18°

Jul

7827.7° / 20.7°

Aug

7628° / 21°

Sep

8724.9° / 17.5°

Oct

7321.2° / 13.9°

Nov

4917.2° / 9.5°

Dec

4214.2° / 6.3°

Monthly climate evidence for Monte-Carlo — 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	5.4°C	73 mm	5.7	13.9°C	9 h 15	40	Strong coverage
February	13.7°C	5.8°C	54 mm	4.7	13.3°C	10 h 25	45	Strong coverage
March	15.6°C	8°C	50 mm	4.9	13.5°C	11 h 47	56	Strong coverage
April	17.5°C	10.5°C	66 mm	6	14.6°C	13 h 22	63	Strong coverage
May	21.2°C	14.3°C	43 mm	5.2	17.5°C	14 h 42	86	Strong coverage
June	24.7°C	18°C	34 mm	3.9	21.1°C	15 h 26	91	Strong coverage
July	27.7°C	20.7°C	12 mm	1.7	23.7°C	15 h 08	78	Strong coverage
August	28°C	21°C	16 mm	2.5	24.6°C	13 h 59	76	Strong coverage
September	24.9°C	17.5°C	68 mm	4.3	22.4°C	12 h 27	87	Strong coverage
October	21.2°C	13.9°C	120 mm	7.2	19.8°C	10 h 56	73	Strong coverage
November	17.2°C	9.5°C	134 mm	7.9	17.4°C	9 h 36	49	Strong coverage
December	14.2°C	6.3°C	90 mm	6.1	15.4°C	8 h 56	42	Strong coverage

Records at COTE D AZUR, 1973–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.5°C20 Jan 2012	-7.2°C9 Jan 1985	73 mm11 Jan 1994	285 mm2014 · driest 0 mm in 2000	49
February	25.1°C28 Feb 1990	-2.0°C12 Feb 1983	123 mm26 Feb 1978	237 mm2024 · driest 0 mm in 2000	49
March	26.1°C2 Mar 2007	-0.1°C28 Mar 1978	76 mm11 Mar 1986	243 mm2013 · driest 0 mm in 2019	49
April	27.0°C24 Apr 1977	3.7°C4 Apr 1983	101 mm21 Apr 1987	171 mm2009 · driest 2 mm in 1982	49
May	31.4°C27 May 2022	5.0°C26 May 1973	55 mm31 May 1974	139 mm1977 · driest 0 mm in 1989	49
June	34.0°C30 Jun 2019	9.0°C4 Jun 1984	70 mm14 Jun 2004	137 mm1992 · driest 0 mm in 1986	48
July	38.8°C17 Jul 1988	12.8°C28 Jul 1987	35 mm28 Jul 2019	70 mm1976 · driest 0 mm in 1994	49
August	35.0°C5 Aug 2003	13.0°C29 Aug 1986	42 mm25 Aug 2021	72 mm1977 · driest 0 mm in 2009	49
September	33.6°C4 Sep 2009	8.0°C1 Sep 1973	104 mm20 Sep 1982	199 mm1991 · driest 0 mm in 1987	49
October	28.6°C14 Oct 2023	1.9°C5 Oct 2003	130 mm13 Oct 1973	395 mm1992 · driest 0 mm in 1989	49
November	25.4°C4 Nov 2004	1.4°C21 Nov 1998	160 mm5 Nov 2014	527 mm2014 · driest 0 mm in 1986	49
December	20.6°C23 Dec 1995	-2.0°C3 Dec 1973	237 mm18 Dec 1983	303 mm1983 · driest 0 mm in 1991	48

Typical days per month at COTE D AZUR, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	0	0	2
February	0	0	2
March	0	0	2
April	0	0	2
May	2	0	1
June	11	<1	1
July	22	3	<1
August	24	4	<1
September	12	<1	2
October	<1	0	3
November	0	0	4
December	0	0	3

How often, not how much — every day in COTE D AZUR’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%	8%	21%	12.5–14.7°C
February	1%	18%	6%	20%	12.1–15.2°C
March	5%	16%	6%	16%	13.8–16.8°C
April	10%	21%	7%	21%	16.1–18.1°C
May	57%	17%	5%	13%	19.0–22.5°C
June	87%	12%	3%	8%	22.8–26.1°C
July	95%	6%	1%	3%	26.0–29.2°C
August	91%	9%	2%	5%	26.6–29.0°C
September	87%	13%	6%	13%	23.7–26.3°C
October	62%	22%	10%	27%	19.9–22.7°C
November	11%	23%	11%	28%	15.7–18.1°C
December	<1%	19%	8%	20%	13.0–15.1°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.

1973Each stripe is one year’s mean temperature against the 25-year average. Warmest: 2022. Coolest: 1974.2022

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2992741
NOAA station: FRM00007690 · COTE D AZUR
Station distance: 19.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 43.74°, 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 COTE D AZUR is what differs

Nice→Monaco→Menton→Saint-Laurent-du-Var→Ventimiglia→Plaine du Var→

Or put two places side by side: Monte-Carlo vs Nice

Best time to visitMonte-Carlo.

June

August

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Monte-Carlo.

The whole year,
without the guesswork.

Nearby, measured,
and named.