Juanjuí weather in May

In May, Juanjuí sees average daytime highs of 29°C and overnight lows near 21°C, with 117 mm of rain across 17.6 wet days and about 11.7 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is Juanjuí's 5th-clearest and 9th-windiest month. For the whole year in context, see Juanjuí's year-round climate.

Daytime high: 29°; 10th warmest
Overnight low: 21°; 4th coldest
Rainfall: 117 mm; 17.6 wet days
Daylight: 11 h 42 min; 6:13 AM – 5:53 PM
Cloud cover: 62%; 5th clearest
Wind: 3 km/h; 9th windiest
Solar energy: 4.73 kWh/m²
Travel score: 4.4; out of 10

Juanjuí is town in San Martín, Peru.

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

← April Juanjuí 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 29°C through the month.

A typical May day in Juanjuí reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, May runs on par with April and on par with 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)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20	20	20	20	20	20	20	20	20

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

How May really feels in Juanjuí

Once humidity and wind are folded in, May averages 27 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Juanjuí weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 21°	221	25	12.4	3.3
Feb	29° / 21°	214	23	12.2	3.2
Mar	29° / 21°	227	25.5	12	3.3
Apr	29° / 21°	167	21.6	11.8	3.7
May	29° / 21°	117	17.6	11.7	4.4
Jun	29° / 20°	73	12.4	11.6	5.3
Jul	29° / 20°	60	10.4	11.6	5.6
Aug	30° / 20°	61	9.3	11.8	5.1
Sep	31° / 21°	88	13.3	12	4.1
Oct	31° / 21°	169	20.8	12.2	3.4
Nov	30° / 21°	233	24.4	12.3	3.1
Dec	30° / 21°	237	25.9	12.4	3.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

	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 (%)	40	41	41	43	44	45	46	47	47	47	47	46	47	47	46	47	47	45	45	45	46	46	46	46	47	47	48	49	49	51	52
Cloudier (%)	60	59	59	57	56	55	54	53	53	53	53	54	53	53	54	53	53	55	55	55	54	54	54	54	53	53	52	51	51	49	48

	Clearer (%)	Cloudier (%)
1	40	60
2	41	59
3	41	59
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	47	53
10	47	53
11	47	53
12	46	54
13	47	53
14	47	53
15	46	54
16	47	53
17	47	53
18	45	55
19	45	55
20	45	55
21	46	54
22	46	54
23	46	54
24	46	54
25	47	53
26	47	53
27	48	52
28	49	51
29	49	51
30	51	49
31	52	48

Chance of precipitation in May

Any precipitation

Juanjuí gets around 117 mm of rain over 17.6 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 57% and peaks near 66% on the wettest days. The odds ease toward the end of the month.

	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 (%)	66	65	65	64	63	62	61	61	60	60	59	59	59	58	58	57	57	57	56	56	55	55	54	53	53	52	52	51	50	50	49

	Rain chance (%)
1	66
2	65
3	65
4	64
5	63
6	62
7	61
8	61
9	60
10	60
11	59
12	59
13	59
14	58
15	58
16	57
17	57
18	57
19	56
20	56
21	55
22	55
23	54
24	53
25	53
26	52
27	52
28	51
29	50
30	50
31	49

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	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
Muggy (%)	21	21	22	23	23	24	24	25	25	26	26	26	26	26	26	26	25	25	25	25	25	25	25	26	26	27	28	28	29	30	31
Oppressive (%)	79	79	78	77	77	76	76	75	75	74	74	74	74	74	74	74	75	75	75	75	75	75	75	74	74	73	72	72	71	70	69

	Muggy (%)	Oppressive (%)
1	21	79
2	21	79
3	22	78
4	23	77
5	23	77
6	24	76
7	24	76
8	25	75
9	25	75
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	26	74
16	26	74
17	25	75
18	25	75
19	25	75
20	25	75
21	25	75
22	25	75
23	25	75
24	26	74
25	26	74
26	27	73
27	28	72
28	28	72
29	29	71
30	30	70
31	31	69

Wind in May

Winds average 3 km/h in May.

Across May, daily wind ranges from about 3 km/h on the calmest days to 3 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)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
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	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	3	calm
20	3	calm
21	3	calm
22	3	calm
23	3	calm
24	3	calm
25	3	calm
26	3	calm
27	3	calm
28	3	calm
29	3	calm
30	3	calm
31	3	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:12 AM to 6:16 AM, and sunset from 5:57 PM to 5:53 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)	11.8	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.6	11.6	11.6	11.6	11.6	11.6	11.6	11.6	11.6	11.6
Sunrise (AM)	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:13	6:13	6:13	6:13	6:13	6:13	6:13	6:14	6:14	6:14	6:14	6:14	6:15	6:15	6:15	6:15	6:15	6:16	6:16
Sunset (PM)	5:57	5:56	5:56	5:56	5:56	5:55	5:55	5:55	5:55	5:54	5:54	5:54	5:54	5:54	5:54	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:53

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	6:12	5:57
2	11.7	6:12	5:56
3	11.7	6:12	5:56
4	11.7	6:12	5:56
5	11.7	6:12	5:56
6	11.7	6:12	5:55
7	11.7	6:12	5:55
8	11.7	6:12	5:55
9	11.7	6:12	5:55
10	11.7	6:12	5:54
11	11.7	6:12	5:54
12	11.7	6:12	5:54
13	11.7	6:13	5:54
14	11.7	6:13	5:54
15	11.7	6:13	5:54
16	11.7	6:13	5:53
17	11.7	6:13	5:53
18	11.7	6:13	5:53
19	11.7	6:13	5:53
20	11.7	6:14	5:53
21	11.7	6:14	5:53
22	11.6	6:14	5:53
23	11.6	6:14	5:53
24	11.6	6:14	5:53
25	11.6	6:15	5:53
26	11.6	6:15	5:53
27	11.6	6:15	5:53
28	11.6	6:15	5:53
29	11.6	6:15	5:53
30	11.6	6:16	5:53
31	11.6	6:16	5:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.73 kWh/m².

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 5.79 kWh/m² in September across the year — May's 4.73 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)	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.6	4.6	4.6
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	4.8	Bright
2	4.8	Bright
3	4.8	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.8	Bright
8	4.8	Bright
9	4.8	Bright
10	4.8	Bright
11	4.8	Bright
12	4.7	Bright
13	4.7	Bright
14	4.7	Bright
15	4.7	Bright
16	4.7	Bright
17	4.7	Bright
18	4.7	Bright
19	4.7	Bright
20	4.7	Bright
21	4.7	Bright
22	4.7	Bright
23	4.7	Bright
24	4.7	Bright
25	4.7	Bright
26	4.7	Bright
27	4.7	Bright
28	4.7	Bright
29	4.6	Bright
30	4.6	Bright
31	4.6	Bright

Planning a trip in May

Is May a good time to visit Juanjuí?

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

4.4

Sightseeing

4th-best month of the year

5.8

Beach & pool

5th-best month of the year

May is a reasonable time to visit Juanjuí for sightseeing.

What to pack for Juanjuí in May

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

In May, Juanjuí sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Juanjuí 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 Juanjuí peaks around February 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (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	16	15	12	12	10	10	11	10	13	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	16	Extreme
Feb	16	Extreme
Mar	15	Extreme
Apr	12	Extreme
May	12	Extreme
Jun	10	Very high
Jul	10	Extreme
Aug	11	Extreme
Sep	10	Extreme
Oct	13	Extreme
Nov	13	Extreme
Dec	13	Extreme

Air quality in Juanjuí 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 Juanjuí is worst in August — around 63 µg/m³ PM2.5 (unhealthy), about 5.9× the cleanest month (May, 11 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)	23	20	16	13	11	11	16	63	50	17	13	15
Level	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate	Unhealthy	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	23	Moderate
Feb	20	Moderate
Mar	16	Moderate
Apr	13	Moderate
May	11	Good
Jun	11	Good
Jul	16	Moderate
Aug	63	Unhealthy
Sep	50	Poor
Oct	17	Moderate
Nov	13	Moderate
Dec	15	Moderate

Location & terrain

Where is Juanjuí?

Juanjuí sits at 7.2°S, 76.7°W, 278 m above sea level, in Peru. The nearest listed city is Bellavista, 20 km away.

Topography around Juanjuí

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

Within 3 km, the terrain around Juanjuí has only modest variations in elevation — a maximum elevation change of 210 m around an average of 299 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,562 m.

The land around Juanjuí is covered by trees (56%) within 3 km, trees (82%) within 16 km, and trees (93%) within 80 km.

3 km

210 m

trees 56%

16 km

897 m

trees 82%

80 km

3,562 m

trees 93%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

May weather nearby: Bellavista 20 km · La Banda 87 km · Tocache 115 km · Moyobamba 130 km · Rioja 134 km · Uchiza 146 km · Yurimaguas 157 km · Huamachuco 163 km

Peru travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B / C; 220 V · 60 Hz
Prices: ≈ 51% of US; price level, 2025
GDP per capita: $9,684; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 49%; of population, 2024
Homicide rate: 8.6; per 100k, 2021
Road deaths: 13.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 519
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 Juanjuí (-7.177°, -76.7277°, elevation 278 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	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	29	21
21	29	21
22	29	20
23	29	20
24	29	20
25	29	20
26	29	20
27	29	20
28	29	20
29	29	20
30	29	20
31	29	20

	Clearer (%)	Cloudier (%)
1	40	60
2	41	59
3	41	59
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	47	53
10	47	53
11	47	53
12	46	54
13	47	53
14	47	53
15	46	54
16	47	53
17	47	53
18	45	55
19	45	55
20	45	55
21	46	54
22	46	54
23	46	54
24	46	54
25	47	53
26	47	53
27	48	52
28	49	51
29	49	51
30	51	49
31	52	48

	Rain chance (%)
1	66
2	65
3	65
4	64
5	63
6	62
7	61
8	61
9	60
10	60
11	59
12	59
13	59
14	58
15	58
16	57
17	57
18	57
19	56
20	56
21	55
22	55
23	54
24	53
25	53
26	52
27	52
28	51
29	50
30	50
31	49

	Muggy (%)	Oppressive (%)
1	21	79
2	21	79
3	22	78
4	23	77
5	23	77
6	24	76
7	24	76
8	25	75
9	25	75
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	26	74
16	26	74
17	25	75
18	25	75
19	25	75
20	25	75
21	25	75
22	25	75
23	25	75
24	26	74
25	26	74
26	27	73
27	28	72
28	28	72
29	29	71
30	30	70
31	31	69

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

	Clearer (%)	Cloudier (%)
1	40	60
2	41	59
3	41	59
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	47	53
10	47	53
11	47	53
12	46	54
13	47	53
14	47	53
15	46	54
16	47	53
17	47	53
18	45	55
19	45	55
20	45	55
21	46	54
22	46	54
23	46	54
24	46	54
25	47	53
26	47	53
27	48	52
28	49	51
29	49	51
30	51	49
31	52	48

	Rain chance (%)
1	66
2	65
3	65
4	64
5	63
6	62
7	61
8	61
9	60
10	60
11	59
12	59
13	59
14	58
15	58
16	57
17	57
18	57
19	56
20	56
21	55
22	55
23	54
24	53
25	53
26	52
27	52
28	51
29	50
30	50
31	49

	Muggy (%)	Oppressive (%)
1	21	79
2	21	79
3	22	78
4	23	77
5	23	77
6	24	76
7	24	76
8	25	75
9	25	75
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	26	74
16	26	74
17	25	75
18	25	75
19	25	75
20	25	75
21	25	75
22	25	75
23	25	75
24	26	74
25	26	74
26	27	73
27	28	72
28	28	72
29	29	71
30	30	70
31	31	69

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

	Clearer (%)	Cloudier (%)
1	40	60
2	41	59
3	41	59
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	47	53
10	47	53
11	47	53
12	46	54
13	47	53
14	47	53
15	46	54
16	47	53
17	47	53
18	45	55
19	45	55
20	45	55
21	46	54
22	46	54
23	46	54
24	46	54
25	47	53
26	47	53
27	48	52
28	49	51
29	49	51
30	51	49
31	52	48

	Rain chance (%)
1	66
2	65
3	65
4	64
5	63
6	62
7	61
8	61
9	60
10	60
11	59
12	59
13	59
14	58
15	58
16	57
17	57
18	57
19	56
20	56
21	55
22	55
23	54
24	53
25	53
26	52
27	52
28	51
29	50
30	50
31	49

	Muggy (%)	Oppressive (%)
1	21	79
2	21	79
3	22	78
4	23	77
5	23	77
6	24	76
7	24	76
8	25	75
9	25	75
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	26	74
16	26	74
17	25	75
18	25	75
19	25	75
20	25	75
21	25	75
22	25	75
23	25	75
24	26	74
25	26	74
26	27	73
27	28	72
28	28	72
29	29	71
30	30	70
31	31	69