Paraíba do Sul weather in May

In May, Paraíba do Sul sees average daytime highs of 24°C and overnight lows near 15°C, with 52 mm of rain across 9.3 wet days and about 11 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of May to 10 h 48 min by month's end. Set against the rest of the year, May is Paraíba do Sul's 4th-clearest and 10th-windiest month. For the whole year in context, see Paraíba do Sul's year-round climate.

Daytime high
24°
10th warmest
Overnight low
15°
4th coldest
Rainfall
52 mm
9.3 wet days
Daylight
10 h 54 min
7:21 AM – 6:18 PM
Cloud cover
59%
4th clearest
Wind
6 km/h
10th windiest
Solar energy
3.54 kWh/m²
Travel score
7.0
out of 10

Paraíba do Sul 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 25°C in the first days to 23°C by the end.

A typical May day in Paraíba do Sul reaches about 24°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22516
32516
42516
52516
62516
72416
82416
92416
102416
112416
122416
132416
142415
152415
162415
172415
182415
192415
202315
212315
222315
232315
242315
252315
262315
272315
282315
292315
302315
312315

Paraíba do Sul weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°27221.613.24.2
Feb29° / 20°18316.712.84.4
Mar28° / 19°19120.412.24.7
Apr26° / 18°7712.711.56.1
May24° / 15°529.3117.0
Jun23° / 14°275.510.77.7
Jul23° / 14°265.210.87.8
Aug24° / 14°30611.27.8
Sep25° / 16°729.811.96.8
Oct26° / 17°1201512.55.7
Nov26° / 18°21620.113.14.8
Dec27° / 20°2722313.34.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45050
54951
64951
74852
84654
94654
104555
114357
124258
134159
144159
154159
164258
174258
184258
194258
204357
214456
224456
234654
244753
254753
264852
274951
284951
295050
305050
315149

Chance of precipitation in May

Any precipitation

Paraíba do Sul gets around 52 mm of rain over 9.3 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 31% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
534
634
734
834
934
1033
1133
1233
1332
1432
1531
1631
1730
1830
1929
2029
2128
2228
2327
2427
2527
2627
2726
2826
2926
3026
3125

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12255122
23275020
33285118
44295116
54315015
65325014
75335012
86334911
96344910
10635499
11735499
12736498
13836497
14837496
15837495
16938495
17938484
18939484
191040474
201040473
211041463
221141453
231142443
241243433
251243423
261343413
271344413
281444403
291443393
301543393
311643383

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.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 12 min at the start of May to 10 h 48 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 7:15 AM to 7:28 AM, and sunset from 6:26 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:156:26
211.27:156:26
311.27:156:25
411.17:166:24
511.17:166:24
611.17:176:23
711.17:176:22
811.17:186:22
911.17:186:21
1011.07:186:21
1111.07:196:20
1211.07:196:20
1311.07:206:19
1411.07:206:19
1511.07:216:18
1610.97:216:18
1710.97:226:17
1810.97:226:17
1910.97:236:16
2010.97:236:16
2110.97:236:16
2210.97:246:15
2310.87:246:15
2410.87:256:15
2510.87:256:15
2610.87:266:14
2710.87:266:14
2810.87:276:14
2910.87:276:14
3010.87:276:13
3110.87:286:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.54 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 5.88 kWh/m² in February across the year — May's 3.54 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.3Moderate
273.3Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in May

Hazard calendar for Paraíba do Sul

In seasonPeak

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

Paraíba do Sul's monsoon runs November–March, 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 Paraíba do Sul?

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

7.0
Sightseeing
4th-best month of the year
5.8
Beach & pool
6th-best month of the year

May is one of the better times to visit Paraíba do Sul for general sightseeing.

What to pack for Paraíba do Sul in May

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

In May, Paraíba do Sul sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Paraíba do Sul in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Paraíba do Sul peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Paraíba do Sul 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 Paraíba do Sul is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (December, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateJul 1237 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb19Moderate
Mar21Moderate
Apr24Moderate
May31Moderate
Jun36Poor
Jul38Poor
Aug32Moderate
Sep37Poor
Oct24Moderate
Nov20Moderate
Dec19Moderate
Location & terrain

Where is Paraíba do Sul?

Paraíba do Sul sits at 22.2°S, 43.3°W, 323 m above sea level, in Brazil. The nearest listed city is Três Rios, 10 km away.

Topography around Paraíba do Sul

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

Within 3 km, the terrain around Paraíba do Sul has significant variations in elevation — a maximum elevation change of 270 m around an average of 341 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 729 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Paraíba do Sul is covered by grassland (58%) and trees (29%) within 3 km, grassland (59%) and trees (38%) within 16 km, and trees (48%) and grassland (45%) within 80 km.

3 km
270 m
16 km
729 m
80 km
2,252 m
treesgrasslandartificial surfaceswater
May weather nearby: Três Rios 10 km · Paty do Alferes 33 km · Miguel Pereira 37 km · São José do Vale do Rio Preto 38 km · Petrópolis 40 km · Valença 43 km · Sapucaia 43 km · Teresópolis 43 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 Paraíba do Sul (-22.1585°, -43.2932°, elevation 323 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).