Guararema weather in May

In May, Guararema sees average daytime highs of 23°C and overnight lows near 15°C, with 66 mm of rain across 9 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 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 30% 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 Guararema's 4th-clearest and 7th-windiest month. For the whole year in context, see Guararema's year-round climate.

Daytime high
23°
10th warmest
Overnight low
15°
4th coldest
Rainfall
66 mm
9 wet days
Daylight
10 h 54 min
7:34 AM – 6:27 PM
Cloud cover
58%
4th clearest
Wind
7 km/h
7th windiest
Solar energy
3.48 kWh/m²
Travel score
7.0
out of 10

Guararema 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 24°C in the first days to 22°C by the end.

A typical May day in Guararema reaches about 23°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°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
22416
32416
42416
52415
62415
72415
82415
92415
102415
112315
122315
132315
142315
152315
162315
172315
182314
192314
202314
212314
222314
232314
242314
252314
262214
272214
282214
292214
302214
312214

Guararema 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°25424.713.34.2
Feb28° / 20°19320.712.84.3
Mar27° / 19°16921.512.24.8
Apr26° / 17°721211.56.4
May23° / 15°66910.97.0
Jun23° / 13°445.910.67.5
Jul22° / 12°53610.77.5
Aug23° / 13°42611.27.7
Sep24° / 15°8510.811.96.8
Oct25° / 17°11214.612.55.8
Nov26° / 17°15117.713.15.3
Dec27° / 19°19121.613.44.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45347
55347
65248
75149
85050
94852
104852
114753
124654
134654
144555
154456
164555
174555
184555
194555
204456
214555
224555
234555
244555
254654
264654
274654
284753
294753
304852
314852

Chance of precipitation in May

Any precipitation

Guararema gets around 66 mm of rain over 9 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 29% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
328
428
527
627
727
827
927
1027
1128
1228
1328
1428
1529
1629
1730
1830
1931
2031
2131
2232
2332
2432
2532
2631
2731
2831
2931
3030
3129

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16265216
27275214
38295013
48305111
59315010
6933499
71034488
81035477
91037466
101138456
111140445
121141444
131142434
141243423
151245413
161246402
171346392
181347382
191448372
201549351
211549341
221649331
231749321
241849311
251949311
262049301
272149291
282249282
292248282
302348272
312448272

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 7:27 AM to 7:41 AM, and sunset from 6:36 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:276:36
211.17:286:35
311.17:286:34
411.17:286:34
511.17:296:33
611.07:296:32
711.07:306:32
811.07:306:31
911.07:316:30
1011.07:316:30
1111.07:326:29
1210.97:326:29
1310.97:336:28
1410.97:336:28
1510.97:346:27
1610.97:346:27
1710.97:356:26
1810.87:356:26
1910.87:366:25
2010.87:366:25
2110.87:376:25
2210.87:376:24
2310.87:386:24
2410.87:386:24
2510.77:386:23
2610.77:396:23
2710.77:396:23
2810.77:406:22
2910.77:406:22
3010.77:416:22
3110.77:416:22

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.48 kWh/m².

For context, solar energy here swings from a low near 3.26 kWh/m² to a high of 5.59 kWh/m² in December across the year — May's 3.48 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in May

Hazard calendar for Guararema

In seasonPeak

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

Guararema's rainy season runs November–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 Guararema?

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
5.5
Beach & pool
5th-best month of the year

May is one of the better times to visit Guararema for general sightseeing.

What to pack for Guararema in May

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

In May, Guararema sees daytime highs around 23°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Guararema in May

The nearest coast averages about 24°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 52 km away) is warmest in February at about 27°C and coldest in August near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul21Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Guararema 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 Guararema peaks around February 9 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 highExtremeFeb 9UV 15Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar11Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Guararema 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 Guararema is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2132 µg/m³Nov 2316 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr21Moderate
May27Moderate
Jun32Moderate
Jul31Moderate
Aug28Moderate
Sep28Moderate
Oct20Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Guararema?

Guararema sits at 23.4°S, 46.0°W, 583 m above sea level, in Brazil. The nearest listed city is Jacareí, 14 km away.

Topography around Guararema

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

Within 3 km, the terrain around Guararema has only modest variations in elevation — a maximum elevation change of 196 m around an average of 623 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 569 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,071 m.

The land around Guararema is covered by trees (52%) and grassland (37%) within 3 km, trees (52%) and grassland (41%) within 16 km, and trees (50%) and grassland (22%) within 80 km.

3 km
196 m
16 km
569 m
80 km
2,071 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Jacareí 14 km · Biritiba Mirim 18 km · Mogi das Cruzes 20 km · Santa Isabel 22 km · Salesópolis 23 km · Bairro da Penha 29 km · Bairro Parque Nossa Senhora do Carmo 29 km · Arujá 29 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 Guararema (-23.415°, -46.035°, elevation 583 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).