São João do Rio do Peixe weather in May

In May, São João do Rio do Peixe sees average daytime highs of 32°C and overnight lows near 23°C, with 50 mm of rain across 7 wet days and about 11.7 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is São João do Rio do Peixe's 8th-clearest and 8th-windiest month. For the whole year in context, see São João do Rio do Peixe's year-round climate.

Daytime high
32°
11th warmest
Overnight low
23°
5th coldest
Rainfall
50 mm
7 wet days
Daylight
11 h 42 min
5:39 AM – 5:21 PM
Cloud cover
56%
8th clearest
Wind
10 km/h
8th windiest
Solar energy
5.16 kWh/m²
Travel score
4.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in São João do Rio do Peixe reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293222
303222
313222

How May really feels in São João do Rio do Peixe

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

São João do Rio do Peixe weather by month

How May compares with the rest of the year at a glance. May is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 24°9211.212.33.0
Feb33° / 24°10212.712.23.1
Mar32° / 23°14016.7123.3
Apr32° / 23°9313.211.93.7
May32° / 23°50711.74.3
Jun32° / 22°18311.64.9
Jul32° / 21°71.611.64.8
Aug33° / 21°40.511.84.2
Sep35° / 22°10.2123.4
Oct36° / 23°60.812.12.9
Nov36° / 24°40.812.32.8
Dec35° / 24°223.812.42.8

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 26% of May, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24852
34951
44951
55050
65050
75149
85248
95248
105347
115446
125545
135545
145644
155644
165743
175941
185941
196040
206139
216139
226238
236139
246139
256238
266238
276139
286238
296238
306139
316139

Chance of precipitation in May

Any precipitation

São João do Rio do Peixe gets around 50 mm of rain over 7 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 23% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
333
432
531
630
728
827
926
1025
1124
1223
1322
1422
1521
1621
1721
1821
1920
2020
2120
2220
2319
2419
2519
2618
2718
2817
2917
3016
3115

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11104346
21104445
31114543
41114642
51124741
61124739
71134838
81144936
92145034
102155033
112165131
122165230
132175229
142175328
152185327
162185426
172195425
182205325
192205424
202215423
212225422
222225521
232235520
242235619
252245618
263245617
273255616
283265615
293265714
304275613
314285612

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 5:38 AM to 5:42 AM, and sunset from 5:24 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:385:24
211.85:385:24
311.85:385:23
411.85:385:23
511.75:385:23
611.75:385:23
711.75:385:22
811.75:385:22
911.75:385:22
1011.75:395:22
1111.75:395:22
1211.75:395:21
1311.75:395:21
1411.75:395:21
1511.75:395:21
1611.75:395:21
1711.75:395:21
1811.75:395:21
1911.75:405:21
2011.75:405:20
2111.75:405:20
2211.75:405:20
2311.75:405:20
2411.75:415:20
2511.75:415:20
2611.75:415:20
2711.75:415:20
2811.65:415:20
2911.65:425:20
3011.65:425:20
3111.65:425:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.16 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 7.19 kWh/m² in October across the year — May's 5.16 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for São João do Rio do Peixe

In seasonPeak

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

São João do Rio do Peixe's rainy season runs January–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit São João do Rio do Peixe?

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

4.3
Sightseeing
3rd-best month of the year
6.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit São João do Rio do Peixe for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São João do Rio do Peixe in May

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

In May, São João do Rio do Peixe sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in São João do Rio do Peixe in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São João do Rio do Peixe peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Jul 16UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep13Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Air quality in São João do Rio do Peixe 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 São João do Rio do Peixe is worst in November — around 18 µg/m³ PM2.5 (moderate), about 4.7× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1418 µg/m³Jul 164 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar9Good
Apr9Good
May7Good
Jun5Good
Jul4Good
Aug5Good
Sep9Good
Oct15Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is São João do Rio do Peixe?

São João do Rio do Peixe sits at 6.7°S, 38.4°W, 247 m above sea level, in Brazil. The nearest listed city is Cajazeiras, 21 km away.

Topography around São João do Rio do Peixe

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São João do Rio do Peixe.

Within 3 km, the terrain around São João do Rio do Peixe has only modest variations in elevation — a maximum elevation change of 48 m around an average of 248 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 306 m; within 80 km, large variations in elevation — a maximum elevation change of 750 m.

The land around São João do Rio do Peixe is covered by grassland (36%), cropland (31%) and shrubs (25%) within 3 km, shrubs (44%) and grassland (34%) within 16 km, and shrubs (60%) and grassland (27%) within 80 km.

3 km
48 m
16 km
306 m
80 km
750 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Cajazeiras 21 km · Sousa 25 km · São José de Piranhas 44 km · Lavras da Mangabeira 57 km · São Miguel 58 km · Icó 58 km · Barro 62 km · Aurora 62 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 São João do Rio do Peixe (-6.7292°, -38.4489°, elevation 247 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).