La Serena weather in May

In May, La Serena sees average daytime highs of 18°C and overnight lows near 12°C, with 21 mm of rain across 2 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of May to 10 h 12 min by month's end. Set against the rest of the year, May is La Serena's 12th-clearest and 12th-windiest month. For the whole year in context, see La Serena's year-round climate.

Daytime high
18°
9th warmest
Overnight low
12°
5th coldest
Rainfall
21 mm
2 wet days
Daylight
10 h 30 min
8:26 AM – 6:56 PM
Cloud cover
52%
12th clearest
Wind
5 km/h
12th windiest
Solar energy
3.45 kWh/m²
Travel score
7.1
out of 10

La Serena is city in Chile.

Air quality
Moderate
PM2.5 13.5 µg/m³ · 2019
Density
2,880/km²
people per km²
Founded
1544

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 17°C by the end.

A typical May day in La Serena reaches about 18°C in the afternoon and slips back to 12°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11913
21913
31912
41912
51912
61912
71912
81912
91912
101812
111812
121812
131812
141812
151812
161812
171812
181812
191812
201811
211811
221811
231811
241811
251811
261811
271811
281711
291711
301711
311711

La Serena weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 16°00.113.79.2
Feb23° / 16°1013.19.1
Mar22° / 15°50.412.28.7
Apr20° / 14°30.711.38.0
May18° / 12°21210.57.1
Jun17° / 10°302.510.16.3
Jul16° / 161.910.36.3
Aug17° / 151.910.96.8
Sep18° / 11°50.911.87.5
Oct20° / 12°50.612.78.1
Nov21° / 13°10.113.58.7
Dec22° / 15°10.113.99.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26733
36634
46535
56436
66337
76139
86139
96040
105941
115842
125842
135743
145743
155644
165743
175644
185743
195644
205644
215644
225644
235545
245545
255545
265545
275545
285545
295545
305644
315644

Chance of precipitation in May

Any precipitation

La Serena gets around 21 mm of rain over 2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 10% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
13
23
34
44
54
64
74
84
94
104
115
125
135
145
155
165
175
186
196
207
217
228
238
248
259
269
279
2810
2910
3010
3110

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
17426
27426
37525
47624
57723
67822
77921
88119
98218
108317
118416
128614
138713
148812
158911
169010
17919
18919
19928
20928
21937
22937
23937
24946
25946
26946
27946
28955
29955
30955
31964

Wind in May

Winds average 5 km/h in May, the calmest month.

Across May, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 54 min at the start of May to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over May. Sunrise moves from 8:16 AM to 8:35 AM, and sunset from 7:08 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.98:167:08
210.88:177:07
310.88:187:06
410.88:187:05
510.88:197:04
610.78:207:04
710.78:207:03
810.78:217:02
910.78:227:01
1010.68:227:00
1110.68:237:00
1210.68:246:59
1310.68:246:58
1410.58:256:58
1510.58:266:57
1610.58:266:56
1710.58:276:56
1810.58:276:55
1910.48:286:55
2010.48:296:54
2110.48:296:53
2210.48:306:53
2310.48:316:52
2410.38:316:52
2510.38:326:52
2610.38:326:51
2710.38:336:51
2810.38:346:50
2910.38:346:50
3010.28:356:50
3110.28:356:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.45 kWh/m².

For context, solar energy here swings from a low near 3.04 kWh/m² to a high of 8.4 kWh/m² in December across the year — May's 3.45 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.7Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in May

Is May a good time to visit La Serena?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.1
Sightseeing
9th-best month of the year
2.5
Beach & pool
9th-best month of the year

May is one of the better times to visit La Serena for general sightseeing.

What to pack for La Serena in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, La Serena sees daytime highs around 18°C and nights near 12°C. Little to plan around — just the basics.

Sea temperature near La Serena in May

The nearest coast averages about 15°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in February at about 18°C and coldest in August near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan17Cool
Feb18Cool
Mar17Cool
Apr16Cool
May15Bracing
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep13Bracing
Oct14Bracing
Nov14Bracing
Dec16Cool

UV index in La Serena in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Serena peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 20UV 14Jun 19UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr6High
May4Moderate
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec13Extreme

Air quality in La Serena in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in La Serena is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 10 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to La Serena's WHO annual average of 13.5 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 2218 µg/m³Mar 1210 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr12Moderate
May15Moderate
Jun17Moderate
Jul18Moderate
Aug18Moderate
Sep16Moderate
Oct12Moderate
Nov11Good
Dec11Good
Location & terrain

Where is La Serena?

La Serena sits at 29.9°S, 71.3°W, 30 m above sea level, in Chile. The nearest listed city is Coquimbo, 10 km away.

CabildoLa Ligua

Topography around La Serena

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Serena.

Within 3 km, the terrain around La Serena has only modest variations in elevation — a maximum elevation change of 131 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,022 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,315 m.

The land around La Serena is covered by artificial surfaces (50%) within 3 km, bare terrain (28%) and water (26%) within 16 km, and bare terrain (32%), water (27%) and grassland (26%) within 80 km.

3 km
131 m
16 km
1,022 m
80 km
4,315 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Coquimbo 10 km · Vicuña 54 km · Ovalle 77 km · Vallenar 155 km · Illapel 192 km · Los Vilos 224 km · Cabildo 281 km · La Ligua 283 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for La Serena (-29.9059°, -71.2501°, elevation 30 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).