Nova Petrópolis weather in May

In May, Nova Petrópolis sees average daytime highs of 20°C and overnight lows near 11°C, with 138 mm of rain across 11 wet days and about 10.5 hours of daylight. It is the 10th-warmest and 10th-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 32% 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 Nova Petrópolis's 7th-clearest and 8th-windiest month. For the whole year in context, see Nova Petrópolis's year-round climate.

Daytime high
20°
10th warmest
Overnight low
11°
4th coldest
Rainfall
138 mm
11 wet days
Daylight
10 h 30 min
8:05 AM – 6:37 PM
Cloud cover
59%
7th clearest
Wind
8 km/h
8th windiest
Solar energy
2.86 kWh/m²
Travel score
6.2
out of 10

Nova Petrópolis 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 22°C in the first days to 19°C by the end.

A typical May day in Nova Petrópolis reaches about 20°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
52112
62112
72112
82112
92112
102112
112112
122112
132112
142012
152012
162012
172011
182011
192011
202011
212011
222011
232011
241911
251911
261910
271910
281910
291910
301910
311910

Nova Petrópolis weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°21018.113.75.2
Feb28° / 18°17917.113.15.2
Mar26° / 17°16015.212.25.9
Apr24° / 15°13311.611.36.6
May20° / 11°1381110.56.2
Jun19° / 10°1341110.25.9
Jul18° / 17111.310.35.9
Aug20° / 10°1421110.96.3
Sep21° / 12°17712.911.86.0
Oct23° / 14°21715.212.76.0
Nov25° / 15°15813.713.56.2
Dec27° / 17°17815.213.85.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44852
54951
64852
74852
84852
94753
104753
114753
124753
134753
144753
154753
164753
174753
184753
194753
204753
214852
224753
234753
244654
254654
264654
274654
284654
294654
304654
314555

Chance of precipitation in May

Any precipitation

Nova Petrópolis gets around 138 mm of rain over 11 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
436
536
636
736
837
937
1036
1136
1236
1336
1436
1535
1635
1735
1834
1934
2034
2133
2233
2333
2433
2533
2633
2733
2833
2933
3033
3133

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
135292610
23629269
33730258
43830257
53930246
64030245
74130244
84231234
94331233
104431233
114530232
124630222
134730221
144730221
154829211
164929211
175029211
185128201
195128201
205327191
215427181
225526181
235626171
245726161
255925151
265925151
276025141
286124141
296224131
306224131
316324121

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
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 7:55 AM to 8:14 AM, and sunset from 6:48 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:556:48
210.97:566:47
310.87:566:46
410.87:576:46
510.87:586:45
610.87:586:44
710.77:596:43
810.78:006:42
910.78:006:42
1010.78:016:41
1110.68:026:40
1210.68:026:39
1310.68:036:39
1410.68:036:38
1510.68:046:37
1610.58:056:37
1710.58:056:36
1810.58:066:36
1910.58:076:35
2010.58:076:34
2110.48:086:34
2210.48:086:33
2310.48:096:33
2410.48:106:33
2510.48:106:32
2610.38:116:32
2710.38:116:31
2810.38:126:31
2910.38:136:31
3010.38:136:30
3110.38:146:30

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 2.45 kWh/m² to a high of 6.36 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
23.2Moderate
33.2Moderate
43.2Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in May

Is May a good time to visit Nova Petrópolis?

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

6.2
Sightseeing
3rd-best month of the year
3.5
Beach & pool
10th-best month of the year

May is a reasonable time to visit Nova Petrópolis for sightseeing.

What to pack for Nova Petrópolis in May

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

In May, Nova Petrópolis sees daytime highs around 20°C and nights near 11°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Nova Petrópolis 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 Nova Petrópolis peaks around January 16 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 highModerateHighVery highExtremeJan 16UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in Nova Petrópolis 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 Nova Petrópolis is worst in August — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (February, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1822 µg/m³Feb 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar10Good
Apr11Good
May12Moderate
Jun12Good
Jul15Moderate
Aug22Moderate
Sep18Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Nova Petrópolis?

Nova Petrópolis sits at 29.4°S, 51.1°W, 589 m above sea level, in Brazil. The nearest listed city is Dois Irmãos, 23 km away.

Topography around Nova Petrópolis

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

Within 3 km, the terrain around Nova Petrópolis has significant variations in elevation — a maximum elevation change of 544 m around an average of 492 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 811 m; within 80 km, large variations in elevation — a maximum elevation change of 1,045 m.

The land around Nova Petrópolis is covered by trees (85%) within 3 km, trees (89%) within 16 km, and trees (63%) and grassland (24%) within 80 km.

3 km
544 m
16 km
811 m
80 km
1,045 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Dois Irmãos 23 km · Gramado 23 km · Caxias do Sul 24 km · Ivoti 24 km · Farroupilha 28 km · Canela 29 km · Estância Velha 31 km · Nova Hartz 31 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 Nova Petrópolis (-29.3764°, -51.1144°, elevation 589 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).