Passo Fundo weather in May

In May, Passo Fundo sees average daytime highs of 21°C and overnight lows near 11°C, with 165 mm of rain across 10.1 wet days and about 10.6 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 35% 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 24 min by month's end. Set against the rest of the year, May is Passo Fundo's 7th-clearest and 8th-windiest month. For the whole year in context, see Passo Fundo's year-round climate.

Daytime high
21°
10th warmest
Overnight low
11°
4th coldest
Rainfall
165 mm
10.1 wet days
Daylight
10 h 36 min
8:08 AM – 6:44 PM
Cloud cover
58%
7th clearest
Wind
12 km/h
8th windiest
Solar energy
3.03 kWh/m²
Travel score
6.4
out of 10

Passo Fundo is human 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 22°C in the first days to 19°C by the end.

A typical May day in Passo Fundo reaches about 21°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°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)
12213
22213
32213
42213
52212
62212
72212
82212
92112
102112
112112
122112
132112
142112
152112
162011
172011
182011
192011
202011
212011
222011
232011
242011
251911
261910
271910
281910
291910
301910
311910

Passo Fundo weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°17516.513.65.3
Feb27° / 18°16715.2135.5
Mar27° / 17°14513.412.26.1
Apr24° / 15°14210.611.36.8
May21° / 11°16510.110.66.4
Jun19° / 10°1501010.26.1
Jul19° / 16610.210.46.1
Aug21° / 10°1189.3116.7
Sep22° / 12°16511.611.86.4
Oct24° / 14°24014.512.76.1
Nov26° / 15°17412.313.46.3
Dec28° / 17°17914.913.85.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25248
35248
45149
55149
65050
75050
85050
94951
104951
114951
124951
134852
144852
154852
164852
174852
184753
194753
204852
214852
224852
234852
244753
254753
264753
274654
284654
294654
304654
314654

Chance of precipitation in May

Any precipitation

Passo Fundo gets around 165 mm of rain over 10.1 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 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
732
832
932
1032
1133
1233
1333
1433
1533
1633
1733
1833
1933
2033
2133
2232
2332
2432
2532
2632
2731
2831
2931
3031
3131

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 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14330235
24529224
34629214
44729213
54929203
65028202
75128192
85228182
95328181
105428171
115528161
125528161
135728150
145828140
155828140
165928130
176028120
186028120
196127120
206227110
216227110
226326101
236326101
246326101
25652591
26652591
27652591
28662491
29662491
30662491
31672481

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 54 min at the start of May to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:59 AM to 8:16 AM, and sunset from 6:55 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:596:55
210.97:596:54
310.98:006:53
410.98:016:52
510.88:016:52
610.88:026:51
710.88:026:50
810.88:036:49
910.78:046:48
1010.78:046:48
1110.78:056:47
1210.78:056:46
1310.78:066:46
1410.68:076:45
1510.68:076:44
1610.68:086:44
1710.68:086:43
1810.68:096:43
1910.58:106:42
2010.58:106:42
2110.58:116:41
2210.58:116:41
2310.58:126:40
2410.58:136:40
2510.48:136:40
2610.48:146:39
2710.48:146:39
2810.48:156:38
2910.48:156:38
3010.48:166:38
3110.48:166:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.03 kWh/m².

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 6.51 kWh/m² in December across the year — May's 3.03 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.3Moderate
83.3Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.7Moderate
312.7Moderate
Planning a trip in May

Is May a good time to visit Passo Fundo?

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

6.4
Sightseeing
3rd-best month of the year
3.7
Beach & pool
10th-best month of the year

May is a reasonable time to visit Passo Fundo for sightseeing.

What to pack for Passo Fundo in May

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

In May, Passo Fundo sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Passo Fundo 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 Passo Fundo peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 21UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct7High
Nov12Extreme
Dec13Extreme

Air quality in Passo Fundo 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 Passo Fundo is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1514 µg/m³Mar 116 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug11Good
Sep15Moderate
Oct9Good
Nov7Good
Dec6Good
Location & terrain

Where is Passo Fundo?

Passo Fundo sits at 28.3°S, 52.4°W, 689 m above sea level, in Brazil. The nearest listed city is Marau, 29 km away.

Topography around Passo Fundo

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

Within 3 km, the terrain around Passo Fundo has only modest variations in elevation — a maximum elevation change of 131 m around an average of 653 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 287 m; within 80 km, large variations in elevation — a maximum elevation change of 675 m.

The land around Passo Fundo is covered by artificial surfaces (63%) and trees (26%) within 3 km, cropland (62%) and trees (26%) within 16 km, and cropland (67%) and trees (28%) within 80 km.

3 km
131 m
16 km
287 m
80 km
675 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Marau 29 km · Carazinho 37 km · Tapejara 44 km · Getúlio Vargas 45 km · Não-Me-Toque 46 km · Sarandi 62 km · Soledade 63 km · Espumoso 67 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 Passo Fundo (-28.2628°, -52.4067°, elevation 689 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).