Caucaia weather in May

In May, Caucaia sees average daytime highs of 30°C and overnight lows near 24°C, with 95 mm of rain across 16.5 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 37% 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 Caucaia's 8th-clearest and 10th-windiest month. For the whole year in context, see Caucaia's year-round climate.

Daytime high
30°
10th warmest
Overnight low
24°
7th coldest
Rainfall
95 mm
16.5 wet days
Daylight
11 h 48 min
5:36 AM – 5:26 PM
Cloud cover
55%
8th clearest
Wind
13 km/h
10th windiest
Solar energy
4.95 kWh/m²
Travel score
4.4
out of 10

Caucaia 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 30°C through the month.

A typical May day in Caucaia reaches about 30°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°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)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How May really feels in Caucaia

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.

Caucaia 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
Jan31° / 25°8014.512.24.2
Feb30° / 25°11818.312.13.8
Mar30° / 24°17123.9123.5
Apr29° / 24°20923.711.93.5
May30° / 24°9516.511.84.4
Jun30° / 24°449.711.85.3
Jul30° / 24°214.611.85.7
Aug31° / 24°4111.95.8
Sep31° / 24°20.2125.8
Oct31° / 25°30.612.15.6
Nov31° / 25°41.312.25.4
Dec31° / 25°205.412.25.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24159
34357
44456
54654
64852
74951
85149
95248
105347
115446
125545
135644
145644
155743
165842
175941
185941
196040
206139
216238
226238
236436
246436
256535
266634
276733
286832
296931
306931
317030

Chance of precipitation in May

Any precipitation

Caucaia gets around 95 mm of rain over 16.5 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 53% 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
267
366
464
563
661
760
858
957
1056
1155
1254
1353
1452
1552
1651
1751
1851
1950
2050
2150
2249
2348
2448
2547
2646
2746
2845
2944
3044
3143

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
108317
208416
308416
408515
508515
608515
708614
808614
908614
1008614
1108614
1208614
1308614
1408614
1508614
1608614
1708713
1808713
1908713
2008812
2108812
2208812
2308911
2418811
2518910
261909
272908
282908
293907
303916
314915

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 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112calm
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light 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
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light 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 5:36 AM to 5:38 AM, and sunset from 5:28 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:365:28
211.95:365:28
311.95:365:28
411.95:365:27
511.95:365:27
611.95:365:27
711.95:365:27
811.95:365:27
911.85:365:26
1011.85:365:26
1111.85:365:26
1211.85:365:26
1311.85:365:26
1411.85:365:26
1511.85:365:26
1611.85:365:26
1711.85:365:26
1811.85:365:26
1911.85:365:26
2011.85:365:26
2111.85:365:26
2211.85:375:26
2311.85:375:26
2411.85:375:26
2511.85:375:26
2611.85:375:26
2711.85:375:26
2811.85:375:26
2911.85:385:26
3011.85:385:26
3111.85:385:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.95 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.69 kWh/m² in September across the year — May's 4.95 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
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 Caucaia

In seasonPeak

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

Caucaia's monsoon runs February–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 Caucaia?

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

4.4
Sightseeing
8th-best month of the year
6.0
Beach & pool
9th-best month of the year

May is a reasonable time to visit Caucaia for sightseeing.

What to pack for Caucaia in May

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

In May, Caucaia sees daytime highs around 30°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 Caucaia 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 13 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
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Caucaia 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 Caucaia 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 Caucaia?

Caucaia sits at 3.7°S, 38.7°W, 35 m above sea level, in Brazil. The nearest listed city is Fortaleza, 12 km away.

Topography around Caucaia

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

Within 3 km, the terrain around Caucaia has only modest variations in elevation — a maximum elevation change of 35 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 642 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Caucaia is covered by trees (31%), artificial surfaces (31%) and grassland (25%) within 3 km, trees (28%), water (25%) and artificial surfaces (23%) within 16 km, and water (35%), trees (22%) and shrubs (20%) within 80 km.

3 km
35 m
16 km
642 m
80 km
1,081 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Fortaleza 12 km · Maracanaú 16 km · Maranguape 18 km · Pacatuba 28 km · Eusébio 28 km · Itaitinga 29 km · Guaiúba 34 km · Aquiraz 34 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 Caucaia (-3.7361°, -38.6531°, elevation 35 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).