La Serena climate

Name: La Serena
Address: CL

La Serena is warmest in January, with average highs of 25 °C, and coldest in July, when nights average 10 °C. June is the wettest month (32 mm) and January the driest (0.3 mm). Figures are 1991–2020 climate normals.

Across a full year La Serena averages 105 mm of rain and 74 days above 25 °C.

Chile · population 154,521 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month January 25 °C
Coldest month July 10 °C
Driest month January 0 mm
Wettest month June 32 mm
Least cloud November 31 % cloud
Hottest on record October 34 °C
Coldest on record July 4.1 °C
Warmest sea February 18 °C

What to expectLa Serena through the year

La Serena has a clear annual cycle: average daily highs run from 18 °C in July to 25 °C in January, a swing of 6.9 °C in mean temperature across the year.

Counted across a normal year, 74 days a year reach 25 °C, 0 of them reach 30 °C. The warmest reading in the 1991–2020 record is 34 °C, in October.

Rain is spread fairly evenly through the year, from 0 mm in January to 32 mm in June. There is no dry season to aim for.

The sea off La Serena is warmest in February at 18 °C and coldest in August at 13 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.4 °C	under 1 mm	33 %
February	25.3 °C	1 mm	34 %
March	24.4 °C	4 mm	36 %
April	22.3 °C	3 mm	45 %
May	20.4 °C	20 mm	56 %
June	18.9 °C	32 mm	55 %
July	18.3 °C	16 mm	47 %
August	19.0 °C	16 mm	44 %
September	20.1 °C	6 mm	43 %
October	21.6 °C	5 mm	37 %
November	23.1 °C	1 mm	31 %
December	24.2 °C	1 mm	32 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C
January	25.4 °C	17.7 °C	20.9 °C	31.1 °C	13.5 °C	20
February	25.3 °C	17.9 °C	20.9 °C	30.0 °C	14.0 °C	19
March	24.4 °C	17.4 °C	20.1 °C	29.4 °C	11.6 °C	12
April	22.3 °C	15.9 °C	18.3 °C	29.1 °C	9.8 °C	3
May	20.4 °C	14.1 °C	16.7 °C	28.7 °C	5.9 °C	1
June	18.9 °C	11.9 °C	15.0 °C	27.9 °C	4.5 °C	0
July	18.3 °C	10.4 °C	14.0 °C	28.4 °C	4.1 °C	0
August	19.0 °C	11.0 °C	14.6 °C	29.5 °C	4.1 °C	1
September	20.1 °C	12.2 °C	15.6 °C	32.5 °C	6.0 °C	1
October	21.6 °C	13.4 °C	16.8 °C	34.3 °C	7.2 °C	2
November	23.1 °C	14.9 °C	18.3 °C	30.7 °C	10.6 °C	4
December	24.2 °C	16.3 °C	19.6 °C	29.7 °C	11.6 °C	11

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	under 1 mm	0	14 h/day	33 %	72 %	14 km/h	17.0 °C
February	1 mm	0	13 h/day	34 %	74 %	14 km/h	17.5 °C
March	4 mm	0	12 h/day	36 %	77 %	12 km/h	16.7 °C
April	3 mm	1	11 h/day	45 %	79 %	11 km/h	15.7 °C
May	20 mm	2	11 h/day	56 %	80 %	9.2 km/h	14.6 °C
June	32 mm	3	10 h/day	55 %	79 %	9.0 km/h	13.8 °C
July	16 mm	2	10 h/day	47 %	79 %	9.1 km/h	13.3 °C
August	16 mm	2	11 h/day	44 %	78 %	10 km/h	13.1 °C
September	6 mm	1	12 h/day	43 %	76 %	12 km/h	13.2 °C
October	5 mm	1	13 h/day	37 %	73 %	13 km/h	13.6 °C
November	1 mm	0	14 h/day	31 %	72 %	14 km/h	14.3 °C
December	1 mm	0	14 h/day	32 %	72 %	14 km/h	15.5 °C

How La Serena compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
La Serena	25 °C	10 °C	105 mm	74
Coquimbo · Chile	24 °C	9.9 °C	103 mm	17
Viña del Mar · Chile	24 °C	7.6 °C	344 mm	18
Valparaíso · Chile	20 °C	9.5 °C	344 mm	0
Quilicura · Chile	29 °C	3.8 °C	612 mm	131
Santiago · Chile	28 °C	2.7 °C	488 mm	123
Peñalolén · Chile	27 °C	1.7 °C	664 mm	101

Where La Serena ranks

Ranking	Position	Value
Places with the best weather in South America year-round	1st of 50	92/100
Places with the best weather in the world year-round	1st of 50	92/100
Places with the best weather in South America in October	2nd of 50	96/100
The driest places in South America in February	2nd of 50	0.5 mm
The driest places in South America in January	3rd of 50	0.3 mm
The driest places in South America in November	3rd of 50	0.6 mm

Planning a trip? See the best time to visit La Serena.

QuestionsCommon questions about La Serena’s climate

When is the best time to visit La Serena?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, March, December sit closest to 20 °C on average, January is the warmest month and January the driest. The month-by-month table above has the full picture.

How hot does La Serena get?

In January, the warmest month, daily highs average 25 °C. About 0 days a year pass 30 °C. The highest value in the 1991–2020 record is 34 °C.

How cold does it get in winter?

Nights average 10 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in La Serena?

June, averaging 32 mm over 3 days with rain. The driest month is January with 0 mm. The year as a whole averages 105 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in La Serena rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -29.906°, -71.250° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.