Santana do Acaraú weather in May

In May, Santana do Acaraú sees average daytime highs of 31°C and overnight lows near 23°C, with 90 mm of rain across 15.1 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 5th-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 26% 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 Santana do Acaraú's 8th-clearest and 10th-windiest month. For the whole year in context, see Santana do Acaraú's year-round climate.

Daytime high
31°
10th warmest
Overnight low
23°
4th coldest
Rainfall
90 mm
15.1 wet days
Daylight
11 h 48 min
5:42 AM – 5:32 PM
Cloud cover
61%
8th clearest
Wind
8 km/h
10th windiest
Solar energy
4.9 kWh/m²
Travel score
4.1
out of 10

Santana do Acaraú is 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 Santana do Acaraú reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°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 on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How May really feels in Santana do Acaraú

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.

Santana do Acaraú weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°11317.612.23.2
Feb31° / 24°13920.712.13.1
Mar30° / 23°20125.8123.0
Apr30° / 23°20824.111.93.2
May31° / 23°9015.111.84.1
Jun31° / 23°25611.84.8
Jul32° / 23°142.811.84.8
Aug33° / 23°50.911.94.3
Sep34° / 24°20.3123.8
Oct35° / 24°40.912.13.5
Nov34° / 24°61.212.23.5
Dec34° / 24°27612.23.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33565
43763
53862
63961
74159
84258
94357
104456
114456
124555
134753
144852
154852
164951
175050
185149
195149
205347
215446
225545
235644
245743
255842
265941
276040
286139
296238
306238
316337

Chance of precipitation in May

Any precipitation

Santana do Acaraú gets around 90 mm of rain over 15.1 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 49% and peaks near 68% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
168
266
365
463
561
659
757
855
954
1052
1151
1249
1348
1447
1547
1646
1746
1845
1945
2044
2144
2243
2343
2442
2541
2640
2740
2838
2937
3036
3134

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11954
21954
32944
42944
52944
62953
72953
82953
92953
102953
112953
123943
133943
143943
153943
163952
173952
183952
193952
204942
214942
225932
235941
246931
257921
268911
2710891
2811881
2912871
3014860
3116840

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 5:42 AM to 5:44 AM, and sunset from 5:34 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:425:34
211.95:425:34
311.95:425:34
411.95:425:34
511.95:415:34
611.95:415:34
711.95:415:33
811.95:415:33
911.95:415:33
1011.95:415:33
1111.95:425:33
1211.95:425:33
1311.95:425:33
1411.85:425:33
1511.85:425:32
1611.85:425:32
1711.85:425:32
1811.85:425:32
1911.85:425:32
2011.85:425:32
2111.85:425:32
2211.85:425:32
2311.85:435:32
2411.85:435:32
2511.85:435:32
2611.85:435:32
2711.85:435:32
2811.85:435:32
2911.85:435:33
3011.85:445:33
3111.85:445:33

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.9 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.78 kWh/m² in October across the year — May's 4.9 kWh/m² sits near the bottom.

024151015202531
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
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Santana do Acaraú

In seasonPeak

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

Santana do Acaraú's monsoon runs January–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 Santana do Acaraú?

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

4.1
Sightseeing
4th-best month of the year
5.9
Beach & pool
8th-best month of the year

May is a reasonable time to visit Santana do Acaraú for sightseeing.

What to pack for Santana do Acaraú in May

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

In May, Santana do Acaraú sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Santana do Acaraú 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 Santana do Acaraú peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Santana do Acaraú 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 Santana do Acaraú is worst in December — around 17 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1017 µg/m³Jul 216 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr12Good
May10Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct10Good
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Santana do Acaraú?

Santana do Acaraú sits at 3.5°S, 40.2°W, 46 m above sea level, in Brazil. The nearest listed city is Massapê, 16 km away.

Topography around Santana do Acaraú

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

Within 3 km, the terrain around Santana do Acaraú has only modest variations in elevation — a maximum elevation change of 235 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 631 m; within 80 km, large variations in elevation — a maximum elevation change of 1,063 m.

The land around Santana do Acaraú is covered by shrubs (46%) and grassland (38%) within 3 km, shrubs (67%) and grassland (23%) within 16 km, and shrubs (48%), grassland (24%) and trees (21%) within 80 km.

3 km
235 m
16 km
631 m
80 km
1,063 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Massapê 16 km · Morrinhos 27 km · Meruoca 28 km · Sobral 29 km · Forquilha 38 km · Marco 38 km · Amontada 44 km · Bela Cruz 46 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 Santana do Acaraú (-3.4606°, -40.2122°, elevation 46 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).