Itapoá weather in May

In May, Itapoá sees average daytime highs of 23°C and overnight lows near 18°C, with 115 mm of rain across 12.7 wet days and about 10.7 hours of daylight. It is the 8th-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 31% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 hours at the start of May to 10 h 30 min by month's end. Set against the rest of the year, May is Itapoá's 2nd-clearest and 10th-windiest month. For the whole year in context, see Itapoá's year-round climate.

Daytime high
23°
8th warmest
Overnight low
18°
5th coldest
Rainfall
115 mm
12.7 wet days
Daylight
10 h 42 min
7:49 AM – 6:32 PM
Cloud cover
60%
2nd clearest
Wind
9 km/h
10th windiest
Solar energy
2.99 kWh/m²
Travel score
6.4
out of 10

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 Itapoá reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12519
22419
32419
42419
52419
62419
72418
82418
92418
102418
112318
122318
132318
142318
152318
162318
172318
182318
192318
202317
212317
222317
232317
242317
252217
262217
272217
282217
292217
302217
312217

Itapoá weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°27123.313.54.1
Feb28° / 23°24920.612.94.1
Mar27° / 22°20621.412.24.7
Apr26° / 20°11914.211.46.0
May23° / 18°11512.710.76.4
Jun22° / 16°9810.110.46.5
Jul21° / 15°899.910.56.4
Aug21° / 16°819.411.16.6
Sep22° / 17°13313.911.85.8
Oct23° / 19°13616.412.65.5
Nov25° / 20°15316.613.35.5
Dec27° / 22°18619.213.65.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45149
55149
64951
74951
84852
94852
104753
114753
124753
134753
144753
154753
164555
174555
184555
194555
204555
214654
224654
234654
244753
254753
264753
274753
284852
294852
304852
314951

Chance of precipitation in May

Any precipitation

Itapoá gets around 115 mm of rain over 12.7 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 41% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
340
440
540
640
740
840
940
1040
1140
1241
1341
1441
1541
1642
1742
1842
1942
2042
2142
2242
2342
2441
2541
2641
2740
2840
2940
3039
3139

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1511303716
2612303715
3613313713
4614313612
5614323611
6615333510
7616333510
861634349
971735338
1071736327
1171837327
1271837316
1371938316
1481938305
1581938305
1681939304
1791939294
1891939294
19101939283
20112038283
21112038283
22122137272
23132137272
24142236272
25142335261
26152335261
27162434261
28162533251
29172533251
30172632241
31182632241

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 hours at the start of May to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:41 AM to 7:57 AM, and sunset from 6:43 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:416:43
211.07:416:42
311.07:426:41
411.07:426:40
510.97:436:39
610.97:436:39
710.97:446:38
810.97:456:37
910.97:456:37
1010.87:466:36
1110.87:466:35
1210.87:476:35
1310.87:476:34
1410.87:486:34
1510.77:486:33
1610.77:496:32
1710.77:506:32
1810.77:506:31
1910.77:516:31
2010.77:516:30
2110.67:526:30
2210.67:526:30
2310.67:536:29
2410.67:536:29
2510.67:546:29
2610.67:546:28
2710.67:556:28
2810.57:556:28
2910.57:566:27
3010.57:566:27
3110.57:576:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.99 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 5.51 kWh/m² in December across the year — May's 2.99 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in May

Is May a good time to visit Itapoá?

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

6.4
Sightseeing
3rd-best month of the year
5.1
Beach & pool
3rd-best month of the year

May is a reasonable time to visit Itapoá for sightseeing.

What to pack for Itapoá in May

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

In May, Itapoá sees daytime highs around 23°C and nights near 18°C. Worth packing: light clothes and rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Itapoá in May

The nearest coast averages about 23°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 24 km away) is warmest in February at about 27°C and coldest in August near 19°C.

It's comfortable for a long swim from Sep 24 to Jun 23 — about 9 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar26Warm
Apr25Warm
May23Refreshing
Jun20Refreshing
Jul19Cool
Aug19Cool
Sep20Cool
Oct21Refreshing
Nov23Refreshing
Dec25Warm

UV index in Itapoá in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itapoá peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 19UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep8Very high
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Itapoá 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 Itapoá is worst in August — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (February, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1115 µg/m³Feb 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr10Good
May12Good
Jun14Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Itapoá?

Itapoá sits at 26.1°S, 48.6°W, 20 m above sea level, in Brazil. The nearest listed city is São Francisco do Sul, 14 km away.

Topography around Itapoá

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

Within 3 km, the terrain around Itapoá has only modest variations in elevation — a maximum elevation change of 210 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 700 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,647 m.

The land around Itapoá is covered by trees (66%) and water (20%) within 3 km, trees (49%) and water (42%) within 16 km, and trees (54%) and water (35%) within 80 km.

3 km
210 m
16 km
700 m
80 km
1,647 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: São Francisco do Sul 14 km · Garuva 26 km · Guaratuba 26 km · Araquari 30 km · Joinville 31 km · Matinhos 33 km · Pontal do Paraná 50 km · Guaramirim 55 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 Itapoá (-26.1169°, -48.6161°, elevation 20 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).