Iúna weather in May

In May, Iúna sees average daytime highs of 25°C and overnight lows near 15°C, with 32 mm of rain across 6.1 wet days and about 11 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 24°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of May to 10 h 54 min by month's end. Set against the rest of the year, May is Iúna's 4th-clearest and 10th-windiest month. For the whole year in context, see Iúna's year-round climate.

Daytime high: 25°; 9th warmest
Overnight low: 15°; 4th coldest
Rainfall: 32 mm; 6.1 wet days
Daylight: 11 hours; 7:11 AM – 6:14 PM
Cloud cover: 58%; 4th clearest
Wind: 6 km/h; 10th windiest
Solar energy: 3.77 kWh/m²
Travel score: 7.5; out of 10

Iúna is settlement in Iúna, Brazil.

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

← April Iúna 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

Highs ease over the month, from about 25°C in the first days to 24°C by the end.

A typical May day in Iúna reaches about 25°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, May runs about 2°C cooler than 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)	26	26	25	25	25	25	25	25	25	25	25	25	25	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24
Avg low (°C)	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15

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

Iúna weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 19°	150	14.3	13.1	5.2
Feb	29° / 19°	91	10.8	12.7	5.2
Mar	28° / 19°	132	15.1	12.1	5.3
Apr	27° / 17°	63	10.7	11.5	6.4
May	25° / 15°	32	6.1	11	7.5
Jun	24° / 14°	12	2.7	10.8	8.2
Jul	24° / 14°	11	2.6	10.9	8.2
Aug	24° / 14°	15	3.7	11.3	8.1
Sep	25° / 16°	41	6.9	11.9	7.2
Oct	26° / 17°	97	11.1	12.5	6.2
Nov	26° / 18°	177	16.7	13	5.3
Dec	27° / 19°	227	18.8	13.2	5.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 49%.

	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 (%)	57	57	57	57	55	55	54	53	51	49	49	48	46	46	45	45	45	45	45	46	46	48	49	50	51	52	53	54	54	55	57
Cloudier (%)	43	43	43	43	45	45	46	47	49	51	51	52	54	54	55	55	55	55	55	54	54	52	51	50	49	48	47	46	46	45	43

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	55	45
6	55	45
7	54	46
8	53	47
9	51	49
10	49	51
11	49	51
12	48	52
13	46	54
14	46	54
15	45	55
16	45	55
17	45	55
18	45	55
19	45	55
20	46	54
21	46	54
22	48	52
23	49	51
24	50	50
25	51	49
26	52	48
27	53	47
28	54	46
29	54	46
30	55	45
31	57	43

Chance of precipitation in May

Any precipitation

Iúna gets around 32 mm of rain over 6.1 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 20% and peaks near 24% 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 (%)	24	23	22	22	21	20	20	20	20	20	20	20	21	21	22	22	22	22	22	22	22	21	21	20	20	19	18	17	16	15	15

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

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 48% 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 (%)	3	3	4	4	5	5	5	6	6	6	6	7	7	7	8	8	8	8	8	9	9	9	10	10	10	11	11	12	12	13	14
Comfortable (%)	28	29	30	32	33	34	35	36	36	37	37	38	38	39	39	40	40	41	41	42	43	43	44	45	45	46	46	47	47	47	48
Humid (%)	52	53	53	52	52	52	52	51	52	52	53	51	52	51	51	50	50	49	49	48	47	46	46	45	44	43	42	41	40	39	38
Muggy (%)	17	15	13	12	10	9	8	7	6	5	4	4	3	3	2	2	2	2	2	1	1	1	1	1	1	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	3	28	52	17
2	3	29	53	15
3	4	30	53	13
4	4	32	52	12
5	5	33	52	10
6	5	34	52	9
7	5	35	52	8
8	6	36	51	7
9	6	36	52	6
10	6	37	52	5
11	6	37	53	4
12	7	38	51	4
13	7	38	52	3
14	7	39	51	3
15	8	39	51	2
16	8	40	50	2
17	8	40	50	2
18	8	41	49	2
19	8	41	49	2
20	9	42	48	1
21	9	43	47	1
22	9	43	46	1
23	10	44	46	1
24	10	45	45	1
25	10	45	44	1
26	11	46	43	0
27	11	46	42	0
28	12	47	41	0
29	12	47	40	0
30	13	47	39	0
31	14	48	38	0

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 18 min at the start of May to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 7:05 AM to 7:17 AM, and sunset from 6:21 PM to 6:10 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)	11.3	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.0	11.0	11.0	11.0	11.0	11.0	11.0	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9
Sunrise (AM)	7:05	7:06	7:06	7:06	7:07	7:07	7:08	7:08	7:08	7:09	7:09	7:10	7:10	7:10	7:11	7:11	7:12	7:12	7:13	7:13	7:13	7:14	7:14	7:15	7:15	7:15	7:16	7:16	7:17	7:17	7:17
Sunset (PM)	6:21	6:21	6:20	6:19	6:19	6:18	6:18	6:17	6:17	6:16	6:16	6:15	6:15	6:14	6:14	6:14	6:13	6:13	6:12	6:12	6:12	6:11	6:11	6:11	6:11	6:10	6:10	6:10	6:10	6:10	6:10

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	7:05	6:21
2	11.2	7:06	6:21
3	11.2	7:06	6:20
4	11.2	7:06	6:19
5	11.2	7:07	6:19
6	11.2	7:07	6:18
7	11.2	7:08	6:18
8	11.2	7:08	6:17
9	11.1	7:08	6:17
10	11.1	7:09	6:16
11	11.1	7:09	6:16
12	11.1	7:10	6:15
13	11.1	7:10	6:15
14	11.1	7:10	6:14
15	11.1	7:11	6:14
16	11.0	7:11	6:14
17	11.0	7:12	6:13
18	11.0	7:12	6:13
19	11.0	7:13	6:12
20	11.0	7:13	6:12
21	11.0	7:13	6:12
22	11.0	7:14	6:11
23	10.9	7:14	6:11
24	10.9	7:15	6:11
25	10.9	7:15	6:11
26	10.9	7:15	6:10
27	10.9	7:16	6:10
28	10.9	7:16	6:10
29	10.9	7:17	6:10
30	10.9	7:17	6:10
31	10.9	7:17	6:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.77 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 5.96 kWh/m² in February across the year — May's 3.77 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)	4.2	4.1	4.1	4.1	4.0	4.0	4.0	4.0	3.9	3.9	3.9	3.8	3.8	3.8	3.7	3.7	3.7	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6
Level	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.1	Bright
3	4.1	Bright
4	4.1	Bright
5	4.0	Bright
6	4.0	Bright
7	4.0	Moderate
8	4.0	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	3.8	Moderate
13	3.8	Moderate
14	3.8	Moderate
15	3.7	Moderate
16	3.7	Moderate
17	3.7	Moderate
18	3.6	Moderate
19	3.6	Moderate
20	3.6	Moderate
21	3.6	Moderate
22	3.6	Moderate
23	3.6	Moderate
24	3.6	Moderate
25	3.6	Moderate
26	3.6	Moderate
27	3.6	Moderate
28	3.6	Moderate
29	3.6	Moderate
30	3.6	Moderate
31	3.6	Moderate

Planning a trip in May

Hazard calendar for Iúna

In seasonPeak

None of Iúna's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Iúna's monsoon runs November–January, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is May a good time to visit Iúna?

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

7.5

Sightseeing

4th-best month of the year

6.6

Beach & pool

5th-best month of the year

May is one of the better times to visit Iúna for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Iúna in May

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

In May, Iúna sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Iúna in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Iúna peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (high).

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)	15	15	14	10	8	7	7	9	10	12	14	14
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	High	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	15	Extreme
Mar	14	Extreme
Apr	10	Extreme
May	8	Very high
Jun	7	High
Jul	7	High
Aug	9	Very high
Sep	10	Extreme
Oct	12	Extreme
Nov	14	Extreme
Dec	14	Extreme

Location & terrain

Where is Iúna?

Iúna sits at 20.3°S, 41.5°W, 670 m above sea level, in Brazil. The nearest listed city is Ibatiba, 13 km away.

Topography around Iúna

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

Within 3 km, the terrain around Iúna has significant variations in elevation — a maximum elevation change of 300 m around an average of 711 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,249 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,831 m.

The land around Iúna is covered by trees (49%) and grassland (45%) within 3 km, trees (64%) and grassland (35%) within 16 km, and trees (57%) and grassland (42%) within 80 km.

3 km

300 m

trees 49%

16 km

1,249 m

trees 64%

80 km

2,831 m

trees 57%

treesgrasslandcroplandartificial surfaces

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

May weather nearby: Ibatiba 13 km · Muniz Freire 18 km · Lajinha 23 km · Manhumirim 44 km · Alegre 46 km · Castelo 46 km · Guaçuí 50 km · Espera Feliz 51 km

Brazil travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / N; 127 / 220 V · 60 Hz
Prices: ≈ 46% of US; price level, 2025
GDP per capita: $10,713; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 89%; of population, 2024
Homicide rate: 19.3; per 100k, 2023
Road deaths: 16; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 482
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 Iúna (-20.3458°, -41.5358°, elevation 670 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. 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	26	16
2	26	16
3	25	16
4	25	16
5	25	16
6	25	16
7	25	16
8	25	16
9	25	16
10	25	16
11	25	16
12	25	16
13	25	15
14	24	15
15	24	15
16	24	15
17	24	15
18	24	15
19	24	15
20	24	15
21	24	15
22	24	15
23	24	15
24	24	15
25	24	15
26	24	15
27	24	15
28	24	15
29	24	15
30	24	15
31	24	15

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	55	45
6	55	45
7	54	46
8	53	47
9	51	49
10	49	51
11	49	51
12	48	52
13	46	54
14	46	54
15	45	55
16	45	55
17	45	55
18	45	55
19	45	55
20	46	54
21	46	54
22	48	52
23	49	51
24	50	50
25	51	49
26	52	48
27	53	47
28	54	46
29	54	46
30	55	45
31	57	43

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	3	28	52	17
2	3	29	53	15
3	4	30	53	13
4	4	32	52	12
5	5	33	52	10
6	5	34	52	9
7	5	35	52	8
8	6	36	51	7
9	6	36	52	6
10	6	37	52	5
11	6	37	53	4
12	7	38	51	4
13	7	38	52	3
14	7	39	51	3
15	8	39	51	2
16	8	40	50	2
17	8	40	50	2
18	8	41	49	2
19	8	41	49	2
20	9	42	48	1
21	9	43	47	1
22	9	43	46	1
23	10	44	46	1
24	10	45	45	1
25	10	45	44	1
26	11	46	43	0
27	11	46	42	0
28	12	47	41	0
29	12	47	40	0
30	13	47	39	0
31	14	48	38	0

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

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	55	45
6	55	45
7	54	46
8	53	47
9	51	49
10	49	51
11	49	51
12	48	52
13	46	54
14	46	54
15	45	55
16	45	55
17	45	55
18	45	55
19	45	55
20	46	54
21	46	54
22	48	52
23	49	51
24	50	50
25	51	49
26	52	48
27	53	47
28	54	46
29	54	46
30	55	45
31	57	43

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	3	28	52	17
2	3	29	53	15
3	4	30	53	13
4	4	32	52	12
5	5	33	52	10
6	5	34	52	9
7	5	35	52	8
8	6	36	51	7
9	6	36	52	6
10	6	37	52	5
11	6	37	53	4
12	7	38	51	4
13	7	38	52	3
14	7	39	51	3
15	8	39	51	2
16	8	40	50	2
17	8	40	50	2
18	8	41	49	2
19	8	41	49	2
20	9	42	48	1
21	9	43	47	1
22	9	43	46	1
23	10	44	46	1
24	10	45	45	1
25	10	45	44	1
26	11	46	43	0
27	11	46	42	0
28	12	47	41	0
29	12	47	40	0
30	13	47	39	0
31	14	48	38	0

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

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	55	45
6	55	45
7	54	46
8	53	47
9	51	49
10	49	51
11	49	51
12	48	52
13	46	54
14	46	54
15	45	55
16	45	55
17	45	55
18	45	55
19	45	55
20	46	54
21	46	54
22	48	52
23	49	51
24	50	50
25	51	49
26	52	48
27	53	47
28	54	46
29	54	46
30	55	45
31	57	43

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	3	28	52	17
2	3	29	53	15
3	4	30	53	13
4	4	32	52	12
5	5	33	52	10
6	5	34	52	9
7	5	35	52	8
8	6	36	51	7
9	6	36	52	6
10	6	37	52	5
11	6	37	53	4
12	7	38	51	4
13	7	38	52	3
14	7	39	51	3
15	8	39	51	2
16	8	40	50	2
17	8	40	50	2
18	8	41	49	2
19	8	41	49	2
20	9	42	48	1
21	9	43	47	1
22	9	43	46	1
23	10	44	46	1
24	10	45	45	1
25	10	45	44	1
26	11	46	43	0
27	11	46	42	0
28	12	47	41	0
29	12	47	40	0
30	13	47	39	0
31	14	48	38	0