Humberto de Campos weather in May

In May, Humberto de Campos sees average daytime highs of 29°C and overnight lows near 25°C, with 237 mm of rain across 24.7 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels oppressive.

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

Daytime high
29°
8th warmest
Overnight low
25°
7th coldest
Rainfall
237 mm
24.7 wet days
Daylight
11 h 54 min
5:54 AM – 5:47 PM
Cloud cover
66%
8th clearest
Wind
13 km/h
10th windiest
Solar energy
4.99 kWh/m²
Travel score
3.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Humberto de Campos reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How May really feels in Humberto de Campos

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.

Humberto de Campos weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°19123.212.13.8
Feb28° / 25°2792512.13.4
Mar28° / 25°39829.7123.1
Apr28° / 25°39228.211.93.2
May29° / 25°23724.711.93.7
Jun29° / 25°10818.711.94.5
Jul29° / 25°6512.911.95.3
Aug30° / 25°123.311.96.2
Sep30° / 26°61126.5
Oct30° / 26°91.912.16.4
Nov30° / 26°173.612.16.0
Dec30° / 26°5210.912.15.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22674
32773
42872
52971
63070
73268
83268
93466
103565
113664
123862
133862
143961
154060
164060
174258
184258
194456
204456
214654
224753
234852
244852
255050
265149
275248
285446
295446
305644
315743

Chance of precipitation in May

Any precipitation

Humberto de Campos gets around 237 mm of rain over 24.7 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 80% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
389
489
588
687
787
886
985
1084
1183
1282
1381
1480
1579
1678
1778
1877
1976
2076
2175
2275
2374
2474
2574
2673
2773
2872
2972
3072
3172

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15446
25347
35248
45248
55149
65050
74951
84852
94753
104654
114654
124555
134555
144555
154555
164555
174654
184753
194753
204852
214951
225050
235149
245347
255446
265644
275842
285941
296139
306238
316337

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 54 min at the start of May to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 5:54 AM to 5:55 AM, and sunset from 5:48 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:545:48
211.95:545:48
311.95:545:48
411.95:545:48
511.95:545:48
611.95:535:47
711.95:535:47
811.95:535:47
911.95:535:47
1011.95:535:47
1111.95:535:47
1211.95:535:47
1311.95:535:47
1411.95:545:47
1511.95:545:47
1611.95:545:47
1711.95:545:47
1811.95:545:47
1911.95:545:46
2011.95:545:46
2111.95:545:46
2211.95:545:47
2311.95:545:47
2411.95:545:47
2511.95:545:47
2611.95:555:47
2711.95:555:47
2811.95:555:47
2911.95:555:47
3011.95:555:47
3111.95:555:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 6.63 kWh/m² in October across the year — May's 4.99 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Humberto de Campos

In seasonPeak

In May, Humberto de Campos sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Humberto de Campos's monsoon runs January–May, 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 Humberto de Campos?

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

3.7
Sightseeing
9th-best month of the year
4.7
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Humberto de Campos.

What to pack for Humberto de Campos in May

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

In May, Humberto de Campos sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Humberto de Campos in May

The nearest coast averages about 29°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 27 km away) is warmest in May at about 29°C and coldest in September near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Warm
Sep27Warm
Oct27Warm
Nov28Warm
Dec28Warm

UV index in Humberto de Campos in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Humberto de Campos peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Humberto de Campos 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 Humberto de Campos is worst in February — around 17 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodFeb 1917 µg/m³Jul 126 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar16Moderate
Apr12Good
May7Good
Jun6Good
Jul6Good
Aug7Good
Sep8Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Humberto de Campos?

Humberto de Campos sits at 2.6°S, 43.5°W, 14 m above sea level, in Brazil. The nearest listed city is São José de Ribamar, 67 km away.

Topography around Humberto de Campos

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

Within 3 km, the terrain around Humberto de Campos has only modest variations in elevation — a maximum elevation change of 28 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 56 m; within 80 km, only modest variations in elevation — a maximum elevation change of 135 m.

The land around Humberto de Campos is covered by mangroves (37%), grassland (27%) and trees (21%) within 3 km, trees (45%), grassland (22%) and mangroves (20%) within 16 km, and water (38%) and trees (35%) within 80 km.

3 km
28 m
16 km
56 m
80 km
135 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: São José de Ribamar 67 km · Urbano Santos 68 km · Icatu 70 km · Morros 71 km · Paço do Lumiar 72 km · Barreirinhas 73 km · Raposa 74 km · São Benedito do Rio Preto 82 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 Humberto de Campos (-2.5983°, -43.4611°, elevation 14 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).