Constitución weather in May

In May, Constitución sees average daytime highs of 14°C and overnight lows near 11°C, with 122 mm of rain across 7.7 wet days and about 10.2 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 34% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of May to 9 h 48 min by month's end. Set against the rest of the year, May is Constitución's 11th-clearest and 12th-windiest month. For the whole year in context, see Constitución's year-round climate.

Daytime high
14°
7th warmest
Overnight low
11°
6th coldest
Rainfall
122 mm
7.7 wet days
Daylight
10 h 06 min
8:42 AM – 6:50 PM
Cloud cover
59%
11th clearest
Wind
15 km/h
12th windiest
Solar energy
2.73 kWh/m²
Travel score
4.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 14°C through the month.

A typical May day in Constitución reaches about 14°C in the afternoon and slips back to 11°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 16°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11512
21512
31512
41512
51512
61512
71512
81512
91512
101512
111412
121412
131412
141412
151412
161411
171411
181411
191411
201411
211411
221411
231411
241411
251411
261411
271411
281411
291411
301411
311411

Constitución weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 15°20.514.18.0
Feb18° / 15°50.713.38.0
Mar18° / 14°91.212.37.5
Apr16° / 13°313.611.15.9
May14° / 11°1227.710.24.4
Jun13° / 11°169119.73.6
Jul12° / 10°1218.99.93.5
Aug13° / 10°988.410.73.6
Sep13° / 10°495.111.84.2
Oct14° / 11°284.312.95.0
Nov16° / 12°111.413.96.2
Dec17° / 14°6114.37.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35545
45545
55347
65248
75149
85050
94852
104852
114753
124654
134555
144555
154555
164456
174357
184357
194357
204357
214357
224357
234357
244357
254357
264456
274456
284456
294357
304456
314456

Chance of precipitation in May

Any precipitation

Constitución gets around 122 mm of rain over 7.7 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 25% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
117
217
318
418
518
619
719
819
920
1020
1121
1221
1322
1423
1524
1624
1725
1826
1927
2028
2129
2229
2330
2430
2531
2631
2731
2832
2932
3032
3133

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
18911
28911
38911
48911
58911
68911
79010
89010
99010
109010
11919
12919
13919
14919
15928
16928
17928
18928
19928
20928
21928
22928
23928
24928
25928
26937
27937
28937
29946
30946
31946

Wind in May

Winds average 15 km/h in May, the calmest month.

Across May, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 36 min at the start of May to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over May. Sunrise moves from 8:29 AM to 8:53 AM, and sunset from 7:05 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:297:05
210.68:307:03
310.58:317:02
410.58:327:01
510.58:327:00
610.48:336:59
710.48:346:58
810.48:356:57
910.38:366:56
1010.38:376:55
1110.38:376:54
1210.38:386:54
1310.28:396:53
1410.28:406:52
1510.28:416:51
1610.18:426:50
1710.18:426:50
1810.18:436:49
1910.18:446:48
2010.08:456:47
2110.08:456:47
2210.08:466:46
2310.08:476:45
2410.08:486:45
259.98:486:44
269.98:496:44
279.98:506:43
289.98:516:43
299.98:516:42
309.88:526:42
319.88:536:41

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.73 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 8.8 kWh/m² in December across the year — May's 2.73 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.0Moderate
93.0Moderate
103.0Moderate
112.9Moderate
122.9Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.7Moderate
172.7Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.3Moderate
Planning a trip in May

Hazard calendar for Constitución

In seasonPeak

In May, Constitución sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Constitución's rainy season runs May–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Constitución?

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

4.4
Sightseeing
8th-best month of the year
0.0
Beach & pool
7th-best month of the year

May is a reasonable time to visit Constitución for sightseeing.

What to pack for Constitución in May

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

In May, Constitución sees daytime highs around 14°C and nights near 11°C. Worth packing: a warm layer. About 8 days see rain.

a warm layer

Sea temperature near Constitución in May

The nearest coast averages about 14°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 20 km away) is warmest in February at about 15°C and coldest in August near 12°C.

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

10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan15Bracing
Feb15Cool
Mar15Bracing
Apr14Bracing
May14Bracing
Jun13Bracing
Jul13Bracing
Aug12Bracing
Sep12Bracing
Oct13Bracing
Nov13Bracing
Dec14Bracing

UV index in Constitución in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Constitución peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 13Jun 15UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr5High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Constitución?

Constitución sits at 35.3°S, 72.4°W, 19 m above sea level, in Chile. The nearest listed city is San Javier, 68 km away.

Topography around Constitución

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

Within 3 km, the terrain around Constitución has significant variations in elevation — a maximum elevation change of 265 m around an average of 60 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 577 m; within 80 km, large variations in elevation — a maximum elevation change of 891 m.

The land around Constitución is covered by trees (35%) and water (34%) within 3 km, water (42%), trees (33%) and grassland (21%) within 16 km, and water (34%), trees (30%) and grassland (27%) within 80 km.

3 km
265 m
16 km
577 m
80 km
891 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: San Javier 68 km · Talca 70 km · Cauquenes 71 km · San Clemente 87 km · Linares 93 km · Longaví 96 km · Colbún 100 km · Sagrada Familia 101 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 Constitución (-35.3332°, -72.4116°, elevation 19 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).