Arroio do Meio weather in May

In May, Arroio do Meio sees average daytime highs of 21°C and overnight lows near 12°C, with 122 mm of rain across 10 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of May to 10 h 18 min by month's end. Set against the rest of the year, May is Arroio do Meio's 9th-clearest and 10th-windiest month. For the whole year in context, see Arroio do Meio's year-round climate.

Daytime high
21°
9th warmest
Overnight low
12°
5th coldest
Rainfall
122 mm
10 wet days
Daylight
10 h 30 min
8:08 AM – 6:40 PM
Cloud cover
60%
9th clearest
Wind
8 km/h
10th windiest
Solar energy
2.86 kWh/m²
Travel score
6.5
out of 10

Arroio do Meio is settlement in Brazil.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical May day in Arroio do Meio reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, May runs about 4°C cooler than April and about 2°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12314
22313
32313
42313
52213
62213
72213
82213
92213
102213
112213
122213
132112
142112
152112
162112
172112
182112
192112
202112
212112
222012
232011
242011
252011
262011
272011
282011
292011
302011
312011

Arroio do Meio weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°18116.513.74.6
Feb29° / 19°15915.313.14.7
Mar28° / 18°13313.912.25.7
Apr25° / 15°13210.811.36.7
May21° / 12°1221010.56.5
Jun19° / 10°12610.210.26.0
Jul19° / 15910.710.36.0
Aug21° / 11°12610.210.96.5
Sep22° / 12°16112.411.86.2
Oct24° / 14°19814.412.76.1
Nov27° / 16°14612.613.56.2
Dec29° / 18°16714.513.85.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34852
44852
54852
64852
74753
84654
94753
104753
114654
124654
134753
144654
154753
164753
174753
184654
194654
204654
214654
224654
234654
244555
254555
264555
274456
284456
294357
304357
314357

Chance of precipitation in May

Any precipitation

Arroio do Meio gets around 122 mm of rain over 10 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
232
332
432
532
632
732
833
933
1033
1133
1233
1333
1433
1533
1633
1733
1833
1932
2032
2132
2232
2331
2431
2531
2631
2731
2831
2930
3030
3130

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 43% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1312628151
2322627141
3332627131
4332727121
5342827110
6342827100
735292790
835292780
936302770
1036302760
1137312760
1237312650
1338312650
1439312650
1540302640
1640302540
1742302540
1843292440
1944282440
2046282340
2147272230
2248272230
2350262130
2451262030
2553251930
2653251930
2754251830
2855251730
2956251720
3056251720
3157251620

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

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

Days shrink by about 36 minutes over May. Sunrise moves from 7:59 AM to 8:17 AM, and sunset from 6:51 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:596:51
210.97:596:51
310.88:006:50
410.88:006:49
510.88:016:48
610.88:026:47
710.78:026:46
810.78:036:46
910.78:046:45
1010.78:046:44
1110.68:056:43
1210.68:066:43
1310.68:066:42
1410.68:076:41
1510.68:076:41
1610.58:086:40
1710.58:096:39
1810.58:096:39
1910.58:106:38
2010.58:116:38
2110.48:116:37
2210.48:126:37
2310.48:126:36
2410.48:136:36
2510.48:146:35
2610.38:146:35
2710.38:156:35
2810.38:156:34
2910.38:166:34
3010.38:166:34
3110.38:176:33

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.86 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 6.45 kWh/m² in December across the year — May's 2.86 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in May

Is May a good time to visit Arroio do Meio?

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

6.5
Sightseeing
2nd-best month of the year
4.1
Beach & pool
9th-best month of the year

May is a reasonable time to visit Arroio do Meio for sightseeing.

What to pack for Arroio do Meio in May

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

In May, Arroio do Meio sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Arroio do Meio in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arroio do Meio peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 16UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr8Very high
May5Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct6High
Nov11Extreme
Dec12Extreme

Air quality in Arroio do Meio 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 Arroio do Meio is worst in September — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1217 µg/m³Dec 1910 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr12Good
May12Good
Jun11Good
Jul13Moderate
Aug16Moderate
Sep17Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Arroio do Meio?

Arroio do Meio sits at 29.4°S, 51.9°W, 45 m above sea level, in Brazil. The nearest listed city is Lajeado, 7.0 km away.

Topography around Arroio do Meio

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

Within 3 km, the terrain around Arroio do Meio has only modest variations in elevation — a maximum elevation change of 84 m around an average of 42 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 618 m; within 80 km, large variations in elevation — a maximum elevation change of 856 m.

The land around Arroio do Meio is covered by trees (35%) and cropland (28%) within 3 km, trees (58%) and cropland (22%) within 16 km, and trees (69%) within 80 km.

3 km
84 m
16 km
618 m
80 km
856 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Lajeado 7.0 km · Estrela 11 km · Teutônia 14 km · Encantado 20 km · Venâncio Aires 33 km · Garibaldi 43 km · Carlos Barbosa 44 km · Taquari 45 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Arroio do Meio (-29.4011°, -51.945°, elevation 45 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).