Marco weather in May

In May, Marco sees average daytime highs of 31°C and overnight lows near 24°C, with 113 mm of rain across 17.1 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 4th-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 oppressive.

Daylight stretches from about 11 h 54 min at the start of May to 11 h 48 min by month's end. Set against the rest of the year, May is Marco's 8th-clearest and 10th-windiest month. For the whole year in context, see Marco's year-round climate.

Daytime high
31°
10th warmest
Overnight low
24°
5th coldest
Rainfall
113 mm
17.1 wet days
Daylight
11 h 54 min
5:41 AM – 5:33 PM
Cloud cover
60%
8th clearest
Wind
12 km/h
10th windiest
Solar energy
4.94 kWh/m²
Travel score
3.9
out of 10

Marco 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

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

A typical May day in Marco reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, May runs on par with April and about 1°C cooler than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How May really feels in Marco

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.

Marco weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 25°10317.412.23.4
Feb31° / 24°1452112.13.1
Mar30° / 24°23126.4123.0
Apr30° / 24°26225.411.93.0
May31° / 24°11317.111.93.9
Jun32° / 24°286.711.84.7
Jul32° / 24°142.511.84.8
Aug33° / 24°30.511.94.4
Sep34° / 25°20.4124.3
Oct33° / 25°50.912.14.2
Nov33° / 25°61.312.14.1
Dec33° / 25°23612.24.0

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 23% of May, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23466
33664
43763
53961
64060
74258
84357
94456
104654
114654
124753
134852
144951
155149
165248
175347
185446
195545
205644
215644
225842
235941
245941
256040
266238
276337
286337
296436
306535
316535

Chance of precipitation in May

Any precipitation

Marco gets around 113 mm of rain over 17.1 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 55% and peaks near 76% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
176
275
374
472
570
669
767
865
963
1061
1159
1257
1356
1454
1553
1652
1751
1851
1950
2049
2148
2247
2346
2445
2544
2643
2742
2841
2940
3038
3137

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 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
106634
206634
306535
406634
506634
606634
706634
806634
906733
1006733
1106832
1206832
1306931
1407030
1507129
1607228
1707426
1807525
1907624
2007723
2107921
2208020
2308119
2408317
2508416
2608614
2718613
2818712
2918910
302899
312908

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light 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 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 5:41 AM to 5:43 AM, and sunset from 5:35 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:415:35
211.95:415:34
311.95:415:34
411.95:415:34
511.95:415:34
611.95:415:34
711.95:415:33
811.95:415:33
911.95:415:33
1011.95:415:33
1111.95:415:33
1211.95:415:33
1311.95:415:33
1411.95:415:33
1511.95:415:33
1611.95:415:33
1711.95:415:33
1811.95:415:33
1911.95:415:32
2011.95:415:32
2111.85:425:32
2211.85:425:32
2311.85:425:33
2411.85:425:33
2511.85:425:33
2611.85:425:33
2711.85:425:33
2811.85:425:33
2911.85:435:33
3011.85:435:33
3111.85:435:33

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.94 kWh/m².

For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 6.8 kWh/m² in October across the year — May's 4.94 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Marco

In seasonPeak

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

Marco's monsoon runs February–April, 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 Marco?

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

3.9
Sightseeing
8th-best month of the year
5.7
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Marco.

What to pack for Marco in May

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

In May, Marco sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Marco 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 41 km away) is warmest in April at about 29°C and coldest in August 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
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index in Marco in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Marco peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Marco?

Marco sits at 3.1°S, 40.1°W, 22 m above sea level, in Brazil. The nearest listed city is Bela Cruz, 8.0 km away.

Topography around Marco

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

Within 3 km, the terrain around Marco has only modest variations in elevation — a maximum elevation change of 58 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 129 m; within 80 km, large variations in elevation — a maximum elevation change of 1,010 m.

The land around Marco is covered by grassland (48%) and trees (33%) within 3 km, trees (38%), grassland (35%) and shrubs (26%) within 16 km, and shrubs (31%), water (27%) and trees (21%) within 80 km.

3 km
58 m
16 km
129 m
80 km
1,010 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Bela Cruz 8.0 km · Morrinhos 12 km · Acaraú 27 km · Itarema 34 km · Santana do Acaraú 38 km · Jijoca de Jericoacoara 42 km · Amontada 44 km · Massapê 49 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 Marco (-3.1239°, -40.1467°, elevation 22 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).