Cássia weather in May

In May, Cássia sees average daytime highs of 25°C and overnight lows near 16°C, with 30 mm of rain across 4.8 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 26°C in the first days to 25°C by the end. The sky is clear or mostly clear about 45% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of May to 10 h 54 min by month's end. Set against the rest of the year, May is Cássia's 5th-clearest and 8th-windiest month. For the whole year in context, see Cássia's year-round climate.

Daytime high
25°
10th warmest
Overnight low
16°
4th coldest
Rainfall
30 mm
4.8 wet days
Daylight
11 hours
7:33 AM – 6:35 PM
Cloud cover
47%
5th clearest
Wind
6 km/h
8th windiest
Solar energy
4.25 kWh/m²
Travel score
7.8
out of 10

Cássia 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 26°C in the first days to 25°C by the end.

A typical May day in Cássia reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°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)
12618
22617
32617
42617
52617
62617
72617
82617
92617
102617
112517
122517
132517
142516
152516
162516
172516
182516
192516
202516
212516
222516
232516
242516
252516
262516
272516
282516
292515
302515
312515

Cássia 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° / 21°22221.813.14.3
Feb28° / 21°15617.912.74.5
Mar28° / 20°14118.112.15.0
Apr27° / 19°518.511.56.8
May25° / 16°304.8117.8
Jun25° / 15°172.310.88.5
Jul25° / 14°101.910.98.6
Aug27° / 15°122.311.38.3
Sep28° / 18°526.711.96.7
Oct29° / 19°9112.412.55.3
Nov28° / 20°15518.2134.9
Dec28° / 20°20623.113.24.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
27030
36931
46931
56832
66634
76535
86337
96139
106040
115842
125842
135644
145644
155644
165545
175545
185644
195644
205743
215842
226040
236139
246238
256436
266436
276535
286634
296733
306733
316832

Chance of precipitation in May

Any precipitation

Cássia gets around 30 mm of rain over 4.8 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 16% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
216
316
415
515
614
714
814
914
1014
1114
1215
1315
1415
1516
1616
1717
1817
1917
2018
2118
2218
2318
2417
2517
2617
2716
2816
2916
3015
3114

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 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15285116
26295015
36305113
47315012
58315011
68325010
7833509
8933498
9934498
10934498
111035487
121035487
131135487
141135476
151236476
161236476
171336466
181336465
191436455
201436455
211437445
221537444
231537434
241638434
251638434
261639423
271639423
281640413
291640413
301641402
311642392

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 18 min at the start of May to 10 h 54 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 7:27 AM to 7:39 AM, and sunset from 6:43 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:276:43
211.27:286:42
311.27:286:41
411.27:286:41
511.27:296:40
611.27:296:40
711.27:296:39
811.17:306:38
911.17:306:38
1011.17:316:37
1111.17:316:37
1211.17:326:36
1311.17:326:36
1411.17:326:36
1511.07:336:35
1611.07:336:35
1711.07:346:34
1811.07:346:34
1911.07:346:34
2011.07:356:33
2111.07:356:33
2210.97:366:33
2310.97:366:32
2410.97:376:32
2510.97:376:32
2610.97:376:32
2710.97:386:31
2810.97:386:31
2910.97:396:31
3010.97:396:31
3110.97:396:31

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.25 kWh/m².

For context, solar energy here swings from a low near 4 kWh/m² to a high of 5.96 kWh/m² in October across the year — May's 4.25 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.3Bright
144.2Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Bright
284.0Bright
294.0Bright
304.0Bright
314.0Bright
Planning a trip in May

Hazard calendar for Cássia

In seasonPeak

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

Cássia'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 Cássia?

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

7.8
Sightseeing
4th-best month of the year
7.1
Beach & pool
5th-best month of the year

May is one of the better times to visit Cássia for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cássia in May

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

In May, Cássia sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Cássia in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cássia peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jun 20UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov15Extreme
Dec14Extreme

Air quality in Cássia 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 Cássia is worst in September — around 40 µg/m³ PM2.5 (poor), about 5.7× the cleanest month (November, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1537 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar9Good
Apr9Good
May9Good
Jun9Good
Jul10Good
Aug18Moderate
Sep40Poor
Oct14Moderate
Nov7Good
Dec8Good
Location & terrain

Where is Cássia?

Cássia sits at 20.6°S, 46.9°W, 740 m above sea level, in Brazil. The nearest listed city is Passos, 36 km away.

Topography around Cássia

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

Within 3 km, the terrain around Cássia has only modest variations in elevation — a maximum elevation change of 231 m around an average of 770 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 624 m; within 80 km, large variations in elevation — a maximum elevation change of 966 m.

The land around Cássia is covered by grassland (44%) and trees (30%) within 3 km, grassland (42%), trees (33%) and cropland (22%) within 16 km, and trees (34%), grassland (34%) and cropland (24%) within 80 km.

3 km
231 m
16 km
624 m
80 km
966 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Passos 36 km · São Sebastião do Paraíso 38 km · Franca 50 km · Alpinópolis 64 km · Monte Santo de Minas 68 km · Altinópolis 68 km · Pedregulho 68 km · Batatais 77 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 Cássia (-20.5831°, -46.9219°, elevation 740 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).