Isnos weather in May

In May, Isnos sees average daytime highs of 18°C and overnight lows near 11°C, with 163 mm of rain across 28.8 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 0% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 06 min at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Isnos's 12th-clearest and 9th-windiest month. For the whole year in context, see Isnos's year-round climate.

Daytime high: 18°; 8th warmest
Overnight low: 11°; 8th coldest
Rainfall: 163 mm; 28.8 wet days
Daylight: 12 h 06 min; 5:59 AM – 6:04 PM
Cloud cover: 92%; 12th clearest
Wind: 5 km/h; 9th windiest
Solar energy: 4.15 kWh/m²
Travel score: 3.2; out of 10

Founded: 1663

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

← April Isnos year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical May day in Isnos reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 20°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18
Avg low (°C)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11

	Avg high (°C)	Avg low (°C)
1	19	11
2	19	11
3	19	11
4	19	11
5	19	11
6	19	11
7	19	11
8	19	11
9	19	11
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	11
19	18	11
20	18	11
21	18	11
22	18	11
23	18	11
24	18	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	11
30	18	11
31	18	11

Isnos weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	20° / 11°	152	22.1	11.9	4.3
Feb	20° / 11°	154	22.7	11.9	4.0
Mar	19° / 11°	208	28.5	12	3.4
Apr	19° / 11°	195	28.6	12	3.2
May	18° / 11°	163	28.8	12.1	3.2
Jun	17° / 10°	171	28	12.1	3.1
Jul	17° / 10°	182	28.2	12.1	3.0
Aug	17° / 9°	124	25.7	12.1	3.4
Sep	18° / 10°	94	23.7	12	3.9
Oct	19° / 11°	152	25.9	12	3.7
Nov	20° / 11°	193	27.1	11.9	3.6
Dec	20° / 11°	168	25.3	11.9	4.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of May, with mostly cloudy or overcast conditions the remaining 99%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Cloudier (%)	100	100	100	100	100	100	100	100	99	99	99	99	99	99	99	99	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98

	Clearer (%)	Cloudier (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	1	99
10	1	99
11	1	99
12	1	99
13	1	99
14	1	99
15	1	99
16	1	99
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98
31	2	98

Chance of precipitation in May

Any precipitation

Isnos gets around 163 mm of rain over 28.8 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 93% and peaks near 94% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	94	93	93	93	93	93	94	94	94	94	94	94	94	94	94	94	94	94	93	93	93	93	93	92	92	92	92	92	92	92	92

	Rain chance (%)
1	94
2	93
3	93
4	93
5	93
6	93
7	94
8	94
9	94
10	94
11	94
12	94
13	94
14	94
15	94
16	94
17	94
18	94
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	92
30	92
31	92

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	66	66	67	67	67	68	68	68	68	69	69	70	70	71	71	72	73	73	74	74	75	76	76	77	78	79	80	81	82	83	84
Comfortable (%)	34	34	33	33	33	32	32	32	32	31	31	30	30	29	29	28	27	27	26	26	25	24	24	23	22	21	20	19	18	17	16

	Dry (%)	Comfortable (%)
1	66	34
2	66	34
3	67	33
4	67	33
5	67	33
6	68	32
7	68	32
8	68	32
9	68	32
10	69	31
11	69	31
12	70	30
13	70	30
14	71	29
15	71	29
16	72	28
17	73	27
18	73	27
19	74	26
20	74	26
21	75	25
22	76	24
23	76	24
24	77	23
25	78	22
26	79	21
27	80	20
28	81	19
29	82	18
30	83	17
31	84	16

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 06 min at the start of May to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 6:00 AM to 5:59 AM, and sunset from 6:04 PM to 6:05 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1
Sunrise (AM)	6:00	6:00	6:00	6:00	6:00	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59	5:59
Sunset (PM)	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:04	6:05	6:05	6:05	6:05	6:05	6:05	6:05

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:00	6:04
2	12.1	6:00	6:04
3	12.1	6:00	6:04
4	12.1	6:00	6:04
5	12.1	6:00	6:04
6	12.1	5:59	6:04
7	12.1	5:59	6:04
8	12.1	5:59	6:04
9	12.1	5:59	6:04
10	12.1	5:59	6:04
11	12.1	5:59	6:04
12	12.1	5:59	6:04
13	12.1	5:59	6:04
14	12.1	5:59	6:04
15	12.1	5:59	6:04
16	12.1	5:59	6:04
17	12.1	5:59	6:04
18	12.1	5:59	6:04
19	12.1	5:59	6:04
20	12.1	5:59	6:04
21	12.1	5:59	6:04
22	12.1	5:59	6:04
23	12.1	5:59	6:04
24	12.1	5:59	6:04
25	12.1	5:59	6:05
26	12.1	5:59	6:05
27	12.1	5:59	6:05
28	12.1	5:59	6:05
29	12.1	5:59	6:05
30	12.1	5:59	6:05
31	12.1	5:59	6:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.15 kWh/m².

For context, solar energy here swings from a low near 3.91 kWh/m² to a high of 5.28 kWh/m² in September across the year — May's 4.15 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.3	4.3	4.3	4.3	4.3	4.2	4.2	4.2	4.2	4.2	4.2	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.3	Bright
4	4.3	Bright
5	4.3	Bright
6	4.2	Bright
7	4.2	Bright
8	4.2	Bright
9	4.2	Bright
10	4.2	Bright
11	4.2	Bright
12	4.1	Bright
13	4.1	Bright
14	4.1	Bright
15	4.1	Bright
16	4.1	Bright
17	4.1	Bright
18	4.1	Bright
19	4.1	Bright
20	4.1	Bright
21	4.1	Bright
22	4.1	Bright
23	4.1	Bright
24	4.1	Bright
25	4.1	Bright
26	4.1	Bright
27	4.1	Bright
28	4.1	Bright
29	4.1	Bright
30	4.1	Bright
31	4.1	Bright

Planning a trip in May

Is May a good time to visit Isnos?

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

3.2

Sightseeing

9th-best month of the year

1.2

Beach & pool

9th-best month of the year

May is a weaker month for outdoor sightseeing in Isnos.

What to pack for Isnos in May

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

In May, Isnos sees daytime highs around 18°C and nights near 11°C. Pack rain gear. About 29 days see rain.

rain gear

UV index in Isnos in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Isnos peaks around February 19 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 13 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	16	17	17	14	15	14	13	13	15	15	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	16	Extreme
Feb	17	Extreme
Mar	17	Extreme
Apr	14	Extreme
May	15	Extreme
Jun	14	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	15	Extreme
Oct	15	Extreme
Nov	13	Extreme
Dec	13	Extreme

Air quality in Isnos 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 Isnos is worst in March — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 9 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	15	18	19	16	12	10	9	12	16	13	13	14
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	18	Moderate
Mar	19	Moderate
Apr	16	Moderate
May	12	Moderate
Jun	10	Good
Jul	9	Good
Aug	12	Good
Sep	16	Moderate
Oct	13	Moderate
Nov	13	Moderate
Dec	14	Moderate

Location & terrain

Where is Isnos?

Isnos sits at 1.9°N, 76.2°W, 1,806 m above sea level, in Colombia. The nearest listed city is San Agustin, 7.0 km away.

Topography around Isnos

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

Within 3 km, the terrain around Isnos has significant variations in elevation — a maximum elevation change of 413 m around an average of 1,814 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,618 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,394 m.

The land around Isnos is covered by grassland (71%) and trees (26%) within 3 km, trees (67%) and grassland (32%) within 16 km, and trees (77%) and grassland (23%) within 80 km.

3 km

413 m

grassland 71%

16 km

1,618 m

trees 67%

80 km

4,394 m

trees 77%

treesgrasslandartificial surfaces

← April Isnos year-round climate June →Best places to visit in May

May weather nearby: San Agustin 7.0 km · Pitalito 23 km · Tarqui 50 km · Guadalupe 55 km · La Plata 64 km · Popayán 70 km · Garzón 74 km · Florencia 79 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

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 Isnos (1.9356°, -76.2406°, elevation 1,806 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. 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).

	Avg high (°C)	Avg low (°C)
1	19	11
2	19	11
3	19	11
4	19	11
5	19	11
6	19	11
7	19	11
8	19	11
9	19	11
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	11
19	18	11
20	18	11
21	18	11
22	18	11
23	18	11
24	18	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	11
30	18	11
31	18	11

	Clearer (%)	Cloudier (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	1	99
10	1	99
11	1	99
12	1	99
13	1	99
14	1	99
15	1	99
16	1	99
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98
31	2	98

	Rain chance (%)
1	94
2	93
3	93
4	93
5	93
6	93
7	94
8	94
9	94
10	94
11	94
12	94
13	94
14	94
15	94
16	94
17	94
18	94
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	92
30	92
31	92

	Dry (%)	Comfortable (%)
1	66	34
2	66	34
3	67	33
4	67	33
5	67	33
6	68	32
7	68	32
8	68	32
9	68	32
10	69	31
11	69	31
12	70	30
13	70	30
14	71	29
15	71	29
16	72	28
17	73	27
18	73	27
19	74	26
20	74	26
21	75	25
22	76	24
23	76	24
24	77	23
25	78	22
26	79	21
27	80	20
28	81	19
29	82	18
30	83	17
31	84	16

	Avg high (°C)	Avg low (°C)
1	19	11
2	19	11
3	19	11
4	19	11
5	19	11
6	19	11
7	19	11
8	19	11
9	19	11
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	11
19	18	11
20	18	11
21	18	11
22	18	11
23	18	11
24	18	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	11
30	18	11
31	18	11

	Clearer (%)	Cloudier (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	1	99
10	1	99
11	1	99
12	1	99
13	1	99
14	1	99
15	1	99
16	1	99
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98
31	2	98

	Rain chance (%)
1	94
2	93
3	93
4	93
5	93
6	93
7	94
8	94
9	94
10	94
11	94
12	94
13	94
14	94
15	94
16	94
17	94
18	94
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	92
30	92
31	92

	Dry (%)	Comfortable (%)
1	66	34
2	66	34
3	67	33
4	67	33
5	67	33
6	68	32
7	68	32
8	68	32
9	68	32
10	69	31
11	69	31
12	70	30
13	70	30
14	71	29
15	71	29
16	72	28
17	73	27
18	73	27
19	74	26
20	74	26
21	75	25
22	76	24
23	76	24
24	77	23
25	78	22
26	79	21
27	80	20
28	81	19
29	82	18
30	83	17
31	84	16

	Avg high (°C)	Avg low (°C)
1	19	11
2	19	11
3	19	11
4	19	11
5	19	11
6	19	11
7	19	11
8	19	11
9	19	11
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	11
19	18	11
20	18	11
21	18	11
22	18	11
23	18	11
24	18	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	11
30	18	11
31	18	11

	Clearer (%)	Cloudier (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	1	99
10	1	99
11	1	99
12	1	99
13	1	99
14	1	99
15	1	99
16	1	99
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98
31	2	98

	Rain chance (%)
1	94
2	93
3	93
4	93
5	93
6	93
7	94
8	94
9	94
10	94
11	94
12	94
13	94
14	94
15	94
16	94
17	94
18	94
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	92
30	92
31	92

	Dry (%)	Comfortable (%)
1	66	34
2	66	34
3	67	33
4	67	33
5	67	33
6	68	32
7	68	32
8	68	32
9	68	32
10	69	31
11	69	31
12	70	30
13	70	30
14	71	29
15	71	29
16	72	28
17	73	27
18	73	27
19	74	26
20	74	26
21	75	25
22	76	24
23	76	24
24	77	23
25	78	22
26	79	21
27	80	20
28	81	19
29	82	18
30	83	17
31	84	16