San Juan Nepomuceno weather in May

In May, San Juan Nepomuceno sees average daytime highs of 32°C and overnight lows near 25°C, with 243 mm of rain across 28.1 wet days and about 12.4 hours of daylight. It is the 9th-warmest and 2nd-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 18 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is San Juan Nepomuceno's 12th-clearest and 11th-windiest month. For the whole year in context, see San Juan Nepomuceno's year-round climate.

Daytime high
32°
9th warmest
Overnight low
25°
12th coldest
Rainfall
243 mm
28.1 wet days
Daylight
12 h 30 min
5:43 AM – 6:10 PM
Cloud cover
90%
12th clearest
Wind
5 km/h
11th windiest
Solar energy
4.62 kWh/m²
Travel score
2.3
out of 10

San Juan Nepomuceno is Colombia.

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

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 San Juan Nepomuceno reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°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)
13225
23225
33225
43225
53225
63225
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243125
253125
263125
273125
283125
293125
303125
313125

How May really feels in San Juan Nepomuceno

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.

San Juan Nepomuceno 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
Jan34° / 24°194.611.53.7
Feb35° / 24°235.511.72.8
Mar34° / 25°5812.211.92.6
Apr33° / 25°15023.512.22.3
May32° / 25°24328.112.42.3
Jun32° / 25°17324.112.62.6
Jul32° / 25°14123.612.52.5
Aug32° / 25°18526.712.32.3
Sep31° / 24°21827.212.12.4
Oct31° / 24°25228.411.82.6
Nov31° / 24°1742411.53.0
Dec32° / 24°7313.111.43.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of May, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2793
3793
4793
5793
6793
7793
8793
9793
10793
11793
12793
13793
14793
15793
16793
17793
18694
19694
20694
21694
22793
23694
24694
25694
26694
27793
28793
29892
30892
31892

Chance of precipitation in May

Any precipitation

San Juan Nepomuceno gets around 243 mm of rain over 28.1 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 90% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
390
490
590
690
790
890
990
1090
1190
1289
1389
1489
1589
1690
1790
1890
1990
2090
2190
2290
2390
2490
2590
2690
2790
2889
2989
3088
3187

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11981
21882
31783
41684
51585
61486
71486
81387
91387
101288
111189
121189
131090
141090
151090
16991
17991
181090
191090
201090
211090
221189
231189
241189
251189
261288
271288
281288
291288
301387
311387

Wind in May

Winds average 5 km/h in May.

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 12 h 18 min at the start of May to 12 h 30 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 5:47 AM to 5:42 AM, and sunset from 6:08 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:476:08
212.45:476:08
312.45:466:08
412.45:466:08
512.45:466:08
612.45:456:09
712.45:456:09
812.45:456:09
912.45:456:09
1012.45:446:09
1112.45:446:09
1212.45:446:09
1312.45:446:10
1412.45:436:10
1512.45:436:10
1612.55:436:10
1712.55:436:10
1812.55:436:11
1912.55:426:11
2012.55:426:11
2112.55:426:11
2212.55:426:12
2312.55:426:12
2412.55:426:12
2512.55:426:12
2612.55:426:12
2712.55:426:13
2812.55:426:13
2912.55:426:13
3012.55:426:13
3112.55:426:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.62 kWh/m².

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 5.67 kWh/m² in February across the year — May's 4.62 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in May

Is May a good time to visit San Juan Nepomuceno?

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

2.3
Sightseeing
10th-best month of the year
3.7
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in San Juan Nepomuceno.

What to pack for San Juan Nepomuceno in May

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

In May, San Juan Nepomuceno sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near San Juan Nepomuceno in May

The nearest coast averages about 29°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 60 km away) is warmest in July at about 30°C and coldest in March near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar28Warm
Apr28Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in San Juan Nepomuceno 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 San Juan Nepomuceno peaks around June 11 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 11UV 13Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in San Juan Nepomuceno 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 San Juan Nepomuceno is worst in March — around 48 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (November, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1745 µg/m³Nov 1915 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb26Moderate
Mar48Poor
Apr30Moderate
May26Moderate
Jun24Moderate
Jul26Moderate
Aug21Moderate
Sep17Moderate
Oct16Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is San Juan Nepomuceno?

San Juan Nepomuceno sits at 10.0°N, 75.1°W, 172 m above sea level, in Colombia. The nearest listed city is San Jacinto, 14 km away.

Topography around San Juan Nepomuceno

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

Within 3 km, the terrain around San Juan Nepomuceno has significant variations in elevation — a maximum elevation change of 294 m around an average of 228 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 786 m; within 80 km, large variations in elevation — a maximum elevation change of 811 m.

The land around San Juan Nepomuceno is covered by trees (47%) and grassland (46%) within 3 km, trees (72%) and grassland (28%) within 16 km, and grassland (53%) and trees (28%) within 80 km.

3 km
294 m
16 km
786 m
80 km
811 m
treesgrasslandartificial surfaceswaterwetlandmangroves
May weather nearby: San Jacinto 14 km · San Pablo 23 km · María la Baja 24 km · El Carmen de Bolívar 26 km · Mahates 33 km · Plato 37 km · Santa Lucía 44 km · Arjona 44 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 San Juan Nepomuceno (9.9516°, -75.082°, elevation 172 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).