Cajamar weather in May

In May, Cajamar sees average daytime highs of 24°C and overnight lows near 14°C, with 64 mm of rain across 6.8 wet days and about 10.9 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 40% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 42 min by month's end. Set against the rest of the year, May is Cajamar's 6th-clearest and 8th-windiest month. For the whole year in context, see Cajamar's year-round climate.

Daytime high
24°
10th warmest
Overnight low
14°
4th coldest
Rainfall
64 mm
6.8 wet days
Daylight
10 h 54 min
7:37 AM – 6:30 PM
Cloud cover
52%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
3.76 kWh/m²
Travel score
7.5
out of 10

Cajamar 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 Cajamar reaches about 24°C in the afternoon and slips back to 14°C overnight — a 9°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 3°C cooler than April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12516
22516
32515
42515
52515
62515
72515
82415
92415
102415
112415
122415
132415
142415
152414
162414
172314
182314
192314
202314
212314
222314
232314
242314
252314
262314
272314
282314
292314
302313
312313

Cajamar 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° / 19°24322.213.34.4
Feb28° / 19°16918.912.84.4
Mar28° / 19°13517.712.25.3
Apr26° / 17°648.811.56.9
May24° / 14°646.810.97.5
Jun23° / 13°495.210.67.8
Jul23° / 12°464.710.78.0
Aug25° / 13°374.511.28.1
Sep26° / 15°868.911.97.0
Oct27° / 17°11813.112.56.0
Nov27° / 18°15015.713.15.5
Dec28° / 19°18919.913.44.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26337
36337
46238
56139
66040
75941
85842
95743
105644
115545
125545
135446
145446
155446
165347
175248
185248
195248
205248
215248
225248
235248
245248
255347
265347
275347
285347
295446
305446
315545

Chance of precipitation in May

Any precipitation

Cajamar gets around 64 mm of rain over 6.8 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 23% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
121
221
320
420
520
620
720
820
920
1020
1121
1221
1321
1422
1522
1623
1723
1824
1924
2024
2124
2225
2325
2425
2525
2625
2725
2825
2924
3024
3124

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11442387
21543375
31644364
41744354
51944343
62045333
72045322
82146312
92246302
102246292
112347292
122347282
132447272
142448262
152548261
162548251
172549241
182649241
192649231
202749231
212849231
222948231
233048221
243147220
253246220
263345220
273344220
283444220
293543220
303642210
313741211

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 42 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 7:30 AM to 7:44 AM, and sunset from 6:39 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:306:39
211.17:316:38
311.17:316:38
411.17:326:37
511.17:326:36
611.07:336:36
711.07:336:35
811.07:346:34
911.07:346:34
1011.07:356:33
1111.07:356:33
1210.97:356:32
1310.97:366:32
1410.97:366:31
1510.97:376:31
1610.97:376:30
1710.97:386:30
1810.87:386:29
1910.87:396:29
2010.87:396:28
2110.87:406:28
2210.87:406:28
2310.87:416:27
2410.87:416:27
2510.77:426:27
2610.77:426:26
2710.77:436:26
2810.77:436:26
2910.77:446:26
3010.77:446:25
3110.77:446:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.76 kWh/m².

For context, solar energy here swings from a low near 3.51 kWh/m² to a high of 5.84 kWh/m² in December across the year — May's 3.76 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.2Bright
34.2Bright
44.2Bright
54.1Bright
64.1Bright
74.0Bright
84.0Bright
94.0Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Cajamar

In seasonPeak

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

Cajamar's rainy season runs October–March, 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 Cajamar?

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

7.5
Sightseeing
4th-best month of the year
6.2
Beach & pool
5th-best month of the year

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

What to pack for Cajamar in May

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

In May, Cajamar sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in Cajamar 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 Cajamar peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Cajamar 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 Cajamar is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1838 µg/m³Jan 1018 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar22Moderate
Apr26Moderate
May31Moderate
Jun35Poor
Jul38Poor
Aug36Poor
Sep35Poor
Oct25Moderate
Nov18Moderate
Dec18Moderate
Location & terrain

Where is Cajamar?

Cajamar sits at 23.4°S, 46.9°W, 735 m above sea level, in Brazil. The nearest listed city is Santana de Parnaíba, 11 km away.

Topography around Cajamar

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

Within 3 km, the terrain around Cajamar has significant variations in elevation — a maximum elevation change of 384 m around an average of 798 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 655 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,679 m.

The land around Cajamar is covered by trees (73%) within 3 km, trees (70%) within 16 km, and trees (54%) and grassland (20%) within 80 km.

3 km
384 m
16 km
655 m
80 km
1,679 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Santana de Parnaíba 11 km · Anhanguera 12 km · Pirapora do Bom Jesus 14 km · Perus 14 km · Caieiras 14 km · Francisco Morato 16 km · Franco da Rocha 16 km · Várzea Paulista 17 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 Cajamar (-23.3561°, -46.8769°, elevation 735 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).