Santa Cruz weather in May

In May, Santa Cruz sees average daytime highs of 17°C and overnight lows near 7°C, with 115 mm of rain across 7 wet days and about 10.2 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 15°C by the end. The sky is clear or mostly clear about 33% 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 54 min by month's end. Set against the rest of the year, May is Santa Cruz's 10th-clearest and 12th-windiest month. For the whole year in context, see Santa Cruz's year-round climate.

Daytime high
17°
9th warmest
Overnight low
5th coldest
Rainfall
115 mm
7 wet days
Daylight
10 h 12 min
8:36 AM – 6:48 PM
Cloud cover
61%
10th clearest
Wind
5 km/h
12th windiest
Solar energy
2.71 kWh/m²
Travel score
5.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 15°C by the end.

A typical May day in Santa Cruz reaches about 17°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 20°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1197
2197
3187
4187
5187
6187
7187
8187
9187
10177
11177
12177
13177
14177
15177
16167
17167
18166
19166
20166
21166
22166
23166
24156
25156
26156
27156
28156
29156
30156
31156

Santa Cruz weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 14°30.614.17.7
Feb28° / 14°50.713.38.2
Mar26° / 12°81.412.38.8
Apr21° / 413.411.27.8
May17° / 115710.25.6
Jun14° / 19510.29.73.9
Jul14° / 1308.89.94.0
Aug15° / 1087.810.74.9
Sep18° / 585.811.86.4
Oct21° / 354.212.97.5
Nov25° / 10°132.213.88.6
Dec27° / 12°101.314.38.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25743
35644
45545
55446
65347
75248
85149
95050
104951
114753
124654
134555
144456
154456
164357
174258
184258
194159
204159
213961
223961
233961
243961
253862
263961
273961
283961
293862
304060
314060

Chance of precipitation in May

Any precipitation

Santa Cruz gets around 115 mm of rain over 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 22% and peaks near 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
114
215
315
415
516
616
716
817
917
1018
1118
1219
1320
1421
1521
1622
1723
1824
1925
2025
2126
2227
2327
2428
2528
2629
2729
2830
2930
3030
3131

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25982
26982
27982
28982
29982
30991
31991

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 36 min at the start of May to 9 h 54 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 8:24 AM to 8:47 AM, and sunset from 7:01 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:247:01
210.68:257:00
310.68:256:59
410.58:266:58
510.58:276:57
610.58:286:56
710.48:296:55
810.48:306:54
910.48:306:53
1010.48:316:53
1110.38:326:52
1210.38:336:51
1310.38:346:50
1410.28:346:49
1510.28:356:48
1610.28:366:48
1710.28:376:47
1810.18:376:46
1910.18:386:45
2010.18:396:45
2110.18:406:44
2210.08:406:43
2310.08:416:43
2410.08:426:42
2510.08:436:42
2610.08:436:41
279.98:446:41
289.98:456:40
299.98:456:40
309.98:466:39
319.98:476:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.71 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 8.75 kWh/m² in December across the year — May's 2.71 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.2Moderate
63.2Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
112.9Moderate
122.9Moderate
132.8Moderate
142.8Moderate
152.7Moderate
162.7Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in May

Hazard calendar for Santa Cruz

In seasonPeak

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

Santa Cruz'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 Santa Cruz?

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

5.6
Sightseeing
9th-best month of the year
1.2
Beach & pool
9th-best month of the year

May is a reasonable time to visit Santa Cruz for sightseeing.

What to pack for Santa Cruz in May

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

In May, Santa Cruz sees daytime highs around 17°C and nights near 7°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Santa Cruz 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 69 km away) is warmest in February at about 16°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°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr15Bracing
May14Bracing
Jun13Bracing
Jul13Bracing
Aug12Bracing
Sep13Bracing
Oct13Bracing
Nov14Bracing
Dec15Bracing

UV index in Santa Cruz 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 Santa Cruz 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 16UV 13Jun 15UV 2
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr5High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Santa Cruz 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 Santa Cruz is worst in May — around 41 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (November, 19 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 2040 µg/m³Nov 2319 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb22Moderate
Mar22Moderate
Apr29Moderate
May41Poor
Jun37Poor
Jul37Poor
Aug35Moderate
Sep32Moderate
Oct24Moderate
Nov19Moderate
Dec19Moderate
Location & terrain

Where is Santa Cruz?

Santa Cruz sits at 34.6°S, 71.4°W, 174 m above sea level, in Chile. The nearest listed city is Chimbarongo, 31 km away.

Topography around Santa Cruz

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

Within 3 km, the terrain around Santa Cruz has only modest variations in elevation — a maximum elevation change of 35 m around an average of 164 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,083 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,840 m.

The land around Santa Cruz is covered by cropland (41%) and trees (25%) within 3 km, trees (32%) and cropland (31%) within 16 km, and trees (36%) and grassland (28%) within 80 km.

3 km
35 m
16 km
1,083 m
80 km
3,840 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Chimbarongo 31 km · San Vicente 35 km · San Vicente de Tagua Tagua 35 km · Curicó 40 km · Sagrada Familia 40 km · Rengo 53 km · Molina 53 km · Pichilemu 65 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 Santa Cruz (-34.6388°, -71.3658°, elevation 174 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).