Casa Nova weather in May

In May, Casa Nova sees average daytime highs of 31°C and overnight lows near 22°C, with 10 mm of rain across 2.3 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 30 min by month's end. Set against the rest of the year, May is Casa Nova's 9th-clearest and 6th-windiest month. For the whole year in context, see Casa Nova's year-round climate.

Daytime high
31°
9th warmest
Overnight low
22°
5th coldest
Rainfall
10 mm
2.3 wet days
Daylight
11 h 36 min
5:53 AM – 5:28 PM
Cloud cover
58%
9th clearest
Wind
18 km/h
6th windiest
Solar energy
4.75 kWh/m²
Travel score
5.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Casa Nova reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123122
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293022
303022
313022

How May really feels in Casa Nova

Once humidity and wind are folded in, May averages 21 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
21
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.

Casa Nova weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°9810.512.53.9
Feb32° / 23°801112.33.8
Mar32° / 23°9611.912.13.9
Apr32° / 23°437.411.84.4
May31° / 22°102.311.65.3
Jun30° / 21°20.411.56.3
Jul29° / 20°20.211.56.6
Aug30° / 20°10.111.76.2
Sep32° / 21°10.111.95.2
Oct33° / 23°101.512.24.2
Nov33° / 24°344.512.43.9
Dec33° / 24°566.912.53.9

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 21% of May, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24654
34753
44753
54753
64753
74753
84753
94753
104852
114852
124852
134753
144753
154753
164753
174753
184753
194753
204753
214753
224852
234951
244951
254951
265050
275050
285149
295149
305248
315248

Chance of precipitation in May

Any precipitation

Casa Nova gets around 10 mm of rain over 2.3 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 7% and peaks near 12% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
211
311
410
59
69
78
88
98
107
117
127
137
147
157
167
177
187
197
207
217
227
237
247
256
266
275
285
295
304
314

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 64% of days. Sticky, muggy-or-worse air turns up on roughly 69% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11197010
2119719
3119728
4120718
5121717
6121717
7122707
8123706
9124696
10025696
11026695
12027685
13028675
14029665
15030655
16030655
17031645
18032635
19032635
20033634
21034624
22135604
23135604
24136594
25137593
26138583
27140563
28141553
29143542
30144532
31146512

Wind in May

Winds average 18 km/h in May.

Across May, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3119light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 30 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 5:51 AM to 5:56 AM, and sunset from 5:32 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:515:32
211.75:515:31
311.75:515:31
411.75:515:31
511.75:515:30
611.65:515:30
711.65:515:30
811.65:515:29
911.65:525:29
1011.65:525:29
1111.65:525:29
1211.65:525:28
1311.65:525:28
1411.65:525:28
1511.65:535:28
1611.65:535:28
1711.65:535:27
1811.65:535:27
1911.65:535:27
2011.65:535:27
2111.65:545:27
2211.55:545:27
2311.55:545:27
2411.55:545:27
2511.55:555:27
2611.55:555:27
2711.55:555:27
2811.55:555:27
2911.55:565:27
3011.55:565:27
3111.55:565:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.75 kWh/m².

For context, solar energy here swings from a low near 4.32 kWh/m² to a high of 6.95 kWh/m² in October across the year — May's 4.75 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in May

Is May a good time to visit Casa Nova?

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

5.3
Sightseeing
4th-best month of the year
7.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Casa Nova for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Casa Nova in May

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

In May, Casa Nova sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Casa Nova in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Casa Nova peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jul 13UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Casa Nova?

Casa Nova sits at 9.2°S, 41.0°W, 311 m above sea level, in Brazil. The nearest listed city is Sobradinho, 38 km away.

Topography around Casa Nova

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

Within 3 km, the terrain around Casa Nova has only modest variations in elevation — a maximum elevation change of 24 m around an average of 397 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 208 m; within 80 km, large variations in elevation — a maximum elevation change of 661 m.

The land around Casa Nova is covered by shrubs (32%), grassland (25%) and water (25%) within 3 km, shrubs (65%) and grassland (20%) within 16 km, and shrubs (71%) within 80 km.

3 km
24 m
16 km
208 m
80 km
661 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Sobradinho 38 km · Petrolina 58 km · Juazeiro 59 km · Afrânio 73 km · Lagoa Grande 80 km · Dormentes 84 km · Paulistana 116 km · Sento Sé 118 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 Casa Nova (-9.1742°, -40.9751°, elevation 311 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).