Santa Rosa weather in May

In May, Santa Rosa sees average daytime highs of 32°C and overnight lows near 26°C, with 213 mm of rain across 27.7 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 2% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Santa Rosa's 10th-clearest and 7th-windiest month. For the whole year in context, see Santa Rosa's year-round climate.

Daytime high
32°
5th warmest
Overnight low
26°
12th coldest
Rainfall
213 mm
27.7 wet days
Daylight
12 h 30 min
5:43 AM – 6:12 PM
Cloud cover
89%
10th clearest
Wind
6 km/h
7th windiest
Solar energy
5.07 kWh/m²
Travel score
2.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Santa Rosa reaches about 32°C in the afternoon and slips back to 26°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, May runs about 1°C cooler than April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83226
93226
103226
113226
123226
133226
143226
153226
163226
173226
183226
193226
203225
213225
223225
233225
243225
253225
263225
273125
283125
293125
303125
313125

How May really feels in Santa Rosa

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santa Rosa weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°123.311.54.3
Feb34° / 25°112.811.73.6
Mar34° / 25°368.211.93.1
Apr33° / 26°11120.112.22.4
May32° / 26°21327.712.52.3
Jun32° / 25°18125.612.62.5
Jul32° / 25°15925.412.52.5
Aug32° / 25°19227.812.32.4
Sep31° / 25°21428.512.12.4
Oct31° / 25°24129.311.82.5
Nov31° / 25°18325.411.52.9
Dec31° / 25°6112.111.44.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 6% of May, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
2991
31090
41090
5991
6991
7991
81090
91090
101090
111090
121090
13991
14991
15991
16892
17892
18892
19793
20793
21694
22694
23694
24694
25694
26694
27793
28793
29793
30892
31892

Chance of precipitation in May

Any precipitation

Santa Rosa gets around 213 mm of rain over 27.7 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 89% and peaks near 92% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
185
286
386
486
586
687
787
887
987
1087
1187
1287
1387
1487
1588
1688
1789
1889
1989
2090
2190
2291
2391
2491
2592
2692
2792
2892
2992
3091
3191

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11288
21189
31090
4991
5892
6892
7793
8793
9694
10694
11694
12595
13595
14595
15595
16595
17496
18496
19496
20496
21397
22397
23397
24397
25298
26298
27298
28298
29298
30298
31199

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:48 AM to 5:42 AM, and sunset from 6:10 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:486:10
212.45:476:10
312.45:476:10
412.45:476:10
512.45:466:10
612.45:466:10
712.45:466:10
812.45:456:11
912.45:456:11
1012.45:456:11
1112.45:456:11
1212.45:446:11
1312.55:446:11
1412.55:446:12
1512.55:446:12
1612.55:436:12
1712.55:436:12
1812.55:436:12
1912.55:436:13
2012.55:436:13
2112.55:436:13
2212.55:426:13
2312.55:426:14
2412.55:426:14
2512.55:426:14
2612.55:426:14
2712.55:426:15
2812.55:426:15
2912.65:426:15
3012.65:426:15
3112.65:426:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.07 kWh/m².

For context, solar energy here swings from a low near 4.53 kWh/m² to a high of 6.22 kWh/m² in March across the year — May's 5.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Santa Rosa

In seasonPeak

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

Santa Rosa's rainy season runs April–November, 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 Rosa?

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

2.3
Sightseeing
12th-best month of the year
3.7
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Santa Rosa.

What to pack for Santa Rosa in May

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

In May, Santa Rosa sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Santa Rosa in May

The nearest coast averages about 28°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 September at about 29°C and coldest in March near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar26Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Santa Rosa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santa Rosa peaks around June 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highJun 12UV 13Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Santa Rosa 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 Rosa is worst in March — around 42 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (November, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1841 µg/m³Nov 2116 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb25Moderate
Mar42Poor
Apr31Moderate
May31Moderate
Jun31Moderate
Jul30Moderate
Aug24Moderate
Sep20Moderate
Oct18Moderate
Nov16Moderate
Dec17Moderate
Location & terrain

Where is Santa Rosa?

Santa Rosa sits at 10.4°N, 75.4°W, 38 m above sea level, in Colombia. The nearest listed city is Turbaco, 14 km away.

Topography around Santa Rosa

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

Within 3 km, the terrain around Santa Rosa has only modest variations in elevation — a maximum elevation change of 88 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 454 m; within 80 km, large variations in elevation — a maximum elevation change of 812 m.

The land around Santa Rosa is covered by grassland (56%) and trees (39%) within 3 km, trees (45%) and grassland (41%) within 16 km, and water (41%), grassland (28%) and trees (26%) within 80 km.

3 km
88 m
16 km
454 m
80 km
812 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Turbaco 14 km · Cartagena 14 km · Arjona 21 km · San Estanislao 24 km · Repelón 27 km · Luruaco 31 km · Mahates 31 km · Manatí 45 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 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 Rosa (10.4447°, -75.3697°, elevation 38 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).