Port Saint Lucie climate — normals and trends

Q: What is the climate of Port Saint Lucie?

Port Saint Lucie has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 916 mm of precipitation per year.

Q: What is the hottest day ever recorded in Port Saint Lucie?

The hottest day measured in Port Saint Lucie between 1940 and 2025 was 8 August 2023, reaching 34.6 °C.

Q: What is the coldest day in Port Saint Lucie?

The coldest day measured in Port Saint Lucie between 1940 and 2025 was 24 December 1989, at -0.6 °C.

Q: Does it snow in Port Saint Lucie?

Almost never: Port Saint Lucie sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Port Saint Lucie warmed?

Yes: Port Saint Lucie warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Port Saint Lucie?

The wettest day measured in Port Saint Lucie between 1940 and 2025 was 17 October 1995, with 166 mm of rain in 24 hours.

Q: What was the windiest day in Port Saint Lucie?

The windiest day measured in Port Saint Lucie between 1940 and 2025 was 4 September 2004, with winds reaching 93.2 km/h.

Q: What is the warmest month in Port Saint Lucie?

The warmest month in Port Saint Lucie is August (27.6 °C on average); the coldest is January (19.2 °C).

Q: How much does it rain in Port Saint Lucie?

Port Saint Lucie receives on average 916 mm of precipitation per year, spread over about 148 rainy days.

Q: Is it sunny in Port Saint Lucie?

Port Saint Lucie gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Port Saint Lucie (United States) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 916 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is August (27.6 °C on average) and the coldest is January (19.2 °C). Rainfall peaks in September.

Port Saint Lucie averages 0 frost days, 51 hot days (≥ 30 °C) and 148 rainy days per year.

Port Saint Lucie has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.6 °C (on 8 August 2023) and the coldest -0.6 °C (on 24 December 1989).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Port Saint LucieFlorida

coords: 27.29°, -80.35°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAugustColdest monthJanuaryWettest monthSeptemberDriest monthDecember

Mean daily temperature

23.8°C

Average daily high

26.3°C

Average daily low

21.5°C

Annual rainfall

916mm

Sunshine / day

10.5h

Mean relative humidity

73%

Average peak wind

21.3km/h

Seasonal range

8.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

51 d/yr

Rainy days (≥ 1 mm)

148 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.3 °C

Average feels-like low

22.5 °C

Average peak gust

36.1 km/h

Tropical nights (≥ 20 °C)

260 d/yr

Solar radiation

17.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.37 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

34.6 °C

8 August 2023

Coldest day

-0.6 °C

24 December 1989

Wettest day

166 mm

17 October 1995

Windiest day

93.2 km/h

4 September 2004

Strongest gust

166.0 km/h

24 October 2005

Hottest feels-like

41.8 °C

9 August 2023

Coldest feels-like

-8.5 °C

24 December 1989

Sunniest day

13.2 h

29 May 1951

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	33.2 °C3 August 2025	8.3 °C31 December 2025	24.6 °C	1,043 mm	82	0
2024	32.5 °C28 May 2024	12.3 °C31 January 2024	24.7 °C	1,176 mm	85	0
2023	34.6 °C8 August 2023	7.5 °C14 January 2023	25.2 °C	1,128 mm	99	0
2022	33.2 °C19 August 2022	6.4 °C30 January 2022	24.8 °C	1,314 mm	89	0
2021	31.6 °C31 July 2021	8.3 °C3 February 2021	24.6 °C	937 mm	59	0
2020	33.1 °C9 July 2020	7.7 °C22 January 2020	25.0 °C	1,126 mm	96	0
2019	32.4 °C5 September 2019	8.8 °C21 January 2019	24.9 °C	1,166 mm	78	0
2018	31.9 °C17 July 2018	5.0 °C4 January 2018	24.4 °C	1,065 mm	56	0
2017	32.0 °C15 August 2017	9.4 °C10 December 2017	24.7 °C	1,137 mm	70	0
2016	32.0 °C9 July 2016	5.9 °C24 January 2016	24.5 °C	1,231 mm	66	0
2015	32.5 °C12 August 2015	6.4 °C20 February 2015	24.9 °C	839 mm	76	0
2014	33.0 °C3 July 2014	7.6 °C19 January 2014	24.2 °C	880 mm	56	0
2013	31.3 °C6 August 2013	7.5 °C4 March 2013	24.2 °C	984 mm	23	0
2012	32.8 °C20 August 2012	7.7 °C4 January 2012	24.2 °C	840 mm	53	0
2011	33.4 °C2 August 2011	9.0 °C13 January 2011	24.5 °C	768 mm	75	0
2010	33.4 °C30 July 2010	2.3 °C14 December 2010	23.1 °C	837 mm	82	0
2009	33.3 °C22 June 2009	4.4 °C5 February 2009	24.0 °C	762 mm	79	0
2008	32.3 °C21 May 2008	6.3 °C3 January 2008	23.9 °C	1,074 mm	41	0
2007	32.6 °C22 June 2007	6.4 °C17 February 2007	24.3 °C	918 mm	65	0
2006	32.0 °C13 August 2006	6.3 °C13 February 2006	24.0 °C	662 mm	42	0
2005	32.9 °C23 July 2005	8.4 °C24 January 2005	23.6 °C	1,148 mm	61	0
2004	32.6 °C15 July 2004	8.9 °C20 December 2004	23.8 °C	953 mm	56	0
2003	31.4 °C7 August 2003	4.7 °C24 January 2003	23.9 °C	867 mm	30	0
2002	31.6 °C4 September 2002	4.5 °C4 January 2002	24.1 °C	790 mm	50	0
2001	31.3 °C16 August 2001	5.9 °C1 January 2001	23.7 °C	953 mm	42	0
2000	32.6 °C17 July 2000	5.9 °C20 December 2000	23.6 °C	607 mm	45	0
1999	33.2 °C29 July 1999	9.1 °C5 January 1999	23.9 °C	899 mm	44	0
1998	33.5 °C15 June 1998	9.8 °C9 February 1998	24.4 °C	775 mm	98	0
1997	32.0 °C31 July 1997	5.6 °C19 January 1997	24.0 °C	943 mm	52	0
1996	32.0 °C3 July 1996	4.6 °C17 February 1996	23.3 °C	1,016 mm	43	0
1995	31.7 °C21 July 1995	5.4 °C25 December 1995	23.6 °C	1,357 mm	52	0
1994	31.8 °C24 June 1994	10.6 °C5 January 1994	24.1 °C	1,185 mm	24	0
1993	33.5 °C20 July 1993	5.8 °C14 March 1993	23.7 °C	947 mm	68	0
1992	31.9 °C3 July 1992	8.4 °C16 January 1992	23.6 °C	985 mm	47	0
1991	32.7 °C20 August 1991	3.9 °C16 February 1991	24.2 °C	948 mm	66	0
1990	32.3 °C31 July 1990	10.9 °C13 January 1990	24.6 °C	547 mm	82	0
1989	32.8 °C7 August 1989	-0.6 °C24 December 1989	24.0 °C	624 mm	75	1
1988	32.3 °C27 June 1988	7.6 °C18 December 1988	23.5 °C	845 mm	52	0
1987	33.4 °C13 July 1987	7.5 °C12 January 1987	23.6 °C	1,031 mm	75	0
1986	32.1 °C20 July 1986	0.9 °C28 January 1986	23.9 °C	782 mm	49	0
1985	32.0 °C3 June 1985	0.2 °C22 January 1985	23.5 °C	913 mm	39	0
1984	32.0 °C11 August 1984	6.9 °C1 March 1984	23.3 °C	798 mm	31	0
1983	33.8 °C25 July 1983	2.2 °C26 December 1983	23.2 °C	1,195 mm	44	0
1982	31.9 °C4 July 1982	2.4 °C12 January 1982	24.0 °C	1,134 mm	40	0
1981	34.0 °C15 July 1981	4.1 °C13 January 1981	23.1 °C	536 mm	64	0
1980	34.3 °C13 July 1980	0.8 °C3 March 1980	23.4 °C	765 mm	65	0
1979	31.8 °C3 July 1979	5.7 °C1 February 1979	23.5 °C	908 mm	45	0
1978	32.0 °C28 July 1978	4.6 °C23 February 1978	23.4 °C	929 mm	64	0
1977	32.3 °C25 June 1977	1.3 °C20 January 1977	23.1 °C	839 mm	62	0
1976	32.3 °C16 July 1976	5.5 °C18 January 1976	23.1 °C	857 mm	28	0
1975	31.8 °C7 July 1975	5.9 °C22 December 1975	24.1 °C	672 mm	50	0
1974	31.8 °C29 September 1974	8.2 °C26 February 1974	24.0 °C	657 mm	47	0
1973	31.8 °C28 May 1973	4.9 °C11 February 1973	23.6 °C	828 mm	40	0
1972	31.7 °C26 June 1972	7.4 °C20 February 1972	24.0 °C	876 mm	42	0
1971	32.1 °C22 June 1971	3.1 °C20 January 1971	23.7 °C	890 mm	37	0
1970	33.3 °C27 June 1970	1.7 °C10 January 1970	23.2 °C	707 mm	60	0
1969	33.4 °C12 July 1969	8.3 °C15 November 1969	23.0 °C	1,113 mm	49	0
1968	31.7 °C1 September 1968	4.1 °C16 December 1968	22.6 °C	1,007 mm	21	0
1967	31.4 °C23 September 1967	5.9 °C26 February 1967	23.5 °C	785 mm	24	0
1966	31.4 °C25 August 1966	2.8 °C31 January 1966	22.9 °C	1,151 mm	18	0
1965	31.6 °C2 August 1965	3.5 °C18 January 1965	23.5 °C	776 mm	24	0
1964	32.6 °C13 July 1964	2.9 °C14 January 1964	23.6 °C	928 mm	57	0
1963	32.6 °C21 July 1963	6.5 °C25 December 1963	23.2 °C	824 mm	66	0
1962	33.0 °C26 July 1962	2.9 °C13 December 1962	23.3 °C	764 mm	52	0
1961	32.3 °C5 August 1961	5.1 °C22 January 1961	23.7 °C	610 mm	43	0
1960	31.8 °C21 July 1960	5.5 °C22 January 1960	23.2 °C	909 mm	50	0
1959	31.5 °C1 August 1959	5.3 °C18 January 1959	23.7 °C	1,197 mm	24	0
1958	33.1 °C16 June 1958	2.7 °C4 February 1958	23.0 °C	848 mm	67	0
1957	32.3 °C1 August 1957	2.5 °C12 December 1957	23.7 °C	991 mm	40	0
1956	33.2 °C7 August 1956	5.8 °C9 January 1956	23.2 °C	546 mm	46	0
1955	31.4 °C11 August 1955	5.7 °C12 February 1955	23.3 °C	732 mm	15	0
1954	31.9 °C6 August 1954	6.2 °C20 December 1954	23.1 °C	1,057 mm	28	0
1953	31.4 °C18 June 1953	8.5 °C4 January 1953	23.6 °C	1,175 mm	32	0
1952	32.1 °C30 August 1952	7.1 °C16 December 1952	23.5 °C	797 mm	59	0
1951	32.2 °C10 August 1951	6.3 °C3 February 1951	23.5 °C	772 mm	72	0
1950	32.7 °C26 June 1950	5.4 °C26 November 1950	23.4 °C	793 mm	35	0
1949	32.2 °C19 August 1949	6.1 °C1 January 1949	23.9 °C	781 mm	34	0
1948	31.8 °C15 August 1948	2.5 °C15 January 1948	24.2 °C	1,057 mm	60	0
1947	31.0 °C28 August 1947	6.2 °C6 February 1947	23.7 °C	1,263 mm	8	0
1946	30.4 °C4 July 1946	11.2 °C25 January 1946	24.0 °C	1,132 mm	6	0
1945	31.6 °C30 May 1945	11.4 °C10 January 1945	23.9 °C	963 mm	19	0
1944	34.5 °C25 June 1944	9.7 °C12 December 1944	24.2 °C	709 mm	64	0
1943	31.0 °C21 July 1943	10.4 °C15 February 1943	23.7 °C	932 mm	23	0
1942	33.2 °C21 July 1942	8.7 °C28 February 1942	23.8 °C	767 mm	42	0
1941	31.9 °C11 June 1941	8.8 °C10 February 1941	23.6 °C	907 mm	46	0
1940	31.5 °C25 July 1940	5.7 °C28 January 1940	23.0 °C	893 mm	30	0

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

27.0 °C

+0.7 °C

Hot days (≥ 30 °C)

82 d/yr

+31

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1043 mm

+127 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	21.0 °C	-1.0 °C	36 mm	-10 mm
Feb	24.6 °C	+2.0 °C	36 mm	-12 mm
Mar	24.9 °C	+0.9 °C	43 mm	-13 mm
Apr	26.1 °C	+0.4 °C	15 mm	-36 mm
May	29.0 °C	+1.4 °C	85 mm	+15 mm
Jun	29.5 °C	+0.4 °C	139 mm	+25 mm
Jul	30.3 °C	+0.4 °C	152 mm	+62 mm
Aug	31.5 °C	+1.5 °C	97 mm	-11 mm
Sep	29.4 °C	+0.3 °C	245 mm	+110 mm
Oct	27.3 °C	0.0 °C	174 mm	+74 mm
Nov	25.2 °C	+0.4 °C	8 mm	-48 mm
Dec	24.8 °C	+1.8 °C	14 mm	-29 mm

The year's extremes

Hottest day

33.2 °C

3 Aug 2025

Coldest day

8.3 °C

31 Dec 2025

Wettest day

55.6 mm

7 Sep 2025

Windiest day

37.9 km/h

10 Mar 2025

Strongest gust

61.9 km/h

22 Jan 2025

Hottest feels-like

40.3 °C

31 Jul 2025

Coldest feels-like

3.7 °C

11 Nov 2025

Sunniest day

13.1 h

6 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Port Saint Lucie?

Port Saint Lucie has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 916 mm of precipitation per year.

What is the hottest day ever recorded in Port Saint Lucie?

The hottest day measured in Port Saint Lucie between 1940 and 2025 was 8 August 2023, reaching 34.6 °C.

What is the coldest day in Port Saint Lucie?

The coldest day measured in Port Saint Lucie between 1940 and 2025 was 24 December 1989, at -0.6 °C.

Does it snow in Port Saint Lucie?

Almost never: Port Saint Lucie sees virtually no snow, with about 0 frost days per year.

Has the climate of Port Saint Lucie warmed?

Yes: Port Saint Lucie warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Port Saint Lucie?

The wettest day measured in Port Saint Lucie between 1940 and 2025 was 17 October 1995, with 166 mm of rain in 24 hours.

What was the windiest day in Port Saint Lucie?

The windiest day measured in Port Saint Lucie between 1940 and 2025 was 4 September 2004, with winds reaching 93.2 km/h.

What is the warmest month in Port Saint Lucie?

The warmest month in Port Saint Lucie is August (27.6 °C on average); the coldest is January (19.2 °C).

How much does it rain in Port Saint Lucie?

Port Saint Lucie receives on average 916 mm of precipitation per year, spread over about 148 rainy days.

Is it sunny in Port Saint Lucie?

Port Saint Lucie gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Are there tropical nights in Port Saint Lucie?

Yes: Port Saint Lucie has on average 260 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Port Saint Lucie?

In Port Saint Lucie, between 1940 and 2025, the highest apparent temperature reached 41.8 °C on 9 August 2023, and the lowest was -8.5 °C on 24 December 1989.

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