Itajaí weather in March

In March, Itajaí sees average daytime highs of 26°C and overnight lows near 21°C, with 147 mm of rain across 19.5 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 22% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Itajaí's 6th-clearest and 7th-windiest month. For the whole year in context, see Itajaí's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
21°
10th coldest
Rainfall
147 mm
19.5 wet days
Daylight
12 h 12 min
7:18 AM – 7:30 PM
Cloud cover
63%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
4.59 kWh/m²
Travel score
5.2
out of 10

Itajaí is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical March day in Itajaí reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102721
112721
122721
132721
142721
152721
162621
172621
182621
192621
202621
212621
222621
232621
242621
252621
262620
272620
282620
292620
302620
312620

Itajaí weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°21521.813.54.7
Feb27° / 22°19419.5134.7
Mar26° / 21°14719.512.25.2
Apr25° / 19°9812.611.46.4
May22° / 16°11511.610.76.4
Jun20° / 14°1099.810.36.3
Jul19° / 13°9810.410.56.1
Aug20° / 14°989.9116.3
Sep21° / 16°15312.911.85.8
Oct22° / 17°14315.412.65.6
Nov24° / 19°14316.913.35.7
Dec26° / 21°15718.413.75.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 24% of March, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24555
34555
44555
54456
64555
74654
84555
94555
104654
114654
124654
134654
144654
154654
164753
174654
184654
194654
204654
214654
224555
234555
244555
254555
264654
274654
284654
294654
304753
314753

Chance of precipitation in March

Any precipitation

Itajaí gets around 147 mm of rain over 19.5 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
370
470
570
669
768
867
967
1066
1165
1264
1364
1463
1562
1662
1761
1861
1960
2060
2159
2259
2359
2459
2558
2658
2758
2857
2957
3056
3155

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021030553
2021030553
3021031543
4011032543
5011033533
6011033533
7011134513
8011134513
9011135512
10011136502
11011236492
12011237482
13011237472
14011338461
15021438451
16021539441
17021639421
18021740401
19021840391
20021841371
21031942361
22032042341
23132043331
24132143311
25132144301
26132145291
27142245281
28142246271
29142246261
30152147251
31152147241

Wind in March

Winds average 9 km/h in March.

Across March, 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 March

DaylightNight

Daylight runs from about 12 h 36 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over March. Sunrise moves from 7:10 AM to 7:26 AM, and sunset from 7:46 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.67:107:46
212.67:117:45
312.57:117:44
412.57:127:43
512.57:127:42
612.57:137:41
712.47:137:40
812.47:147:39
912.47:157:38
1012.47:157:37
1112.37:167:36
1212.37:167:35
1312.37:177:34
1412.37:177:32
1512.27:187:31
1612.27:187:30
1712.27:197:29
1812.17:197:28
1912.17:207:27
2012.17:207:26
2112.17:217:25
2212.07:217:24
2312.07:227:22
2412.07:227:21
2512.07:237:20
2611.97:237:19
2711.97:247:18
2811.97:247:17
2911.87:257:16
3011.87:257:14
3111.87:267:13

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.59 kWh/m².

For context, solar energy here swings from a low near 2.55 kWh/m² to a high of 5.54 kWh/m² in December across the year — March's 4.59 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in March

Is March a good time to visit Itajaí?

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

5.2
Sightseeing
9th-best month of the year
5.1
Beach & pool
2nd-best month of the year

March is a reasonable time to visit Itajaí for sightseeing.

What to pack for Itajaí in March

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

In March, Itajaí sees daytime highs around 26°C and nights near 21°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

Sea temperature near Itajaí in March

The nearest coast averages about 26°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 27°C and coldest in August near 18°C.

It's comfortable for a long swim from Sep 30 to Jun 16 — about 8.5 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar26Warm
Apr25Warm
May22Refreshing
Jun20Refreshing
Jul18Cool
Aug18Cool
Sep19Cool
Oct21Refreshing
Nov23Refreshing
Dec25Warm

UV index in Itajaí in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Itajaí peaks around January 18 at about 13 (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 highHighModerateHighVery highExtremeJan 18UV 13Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Itajaí?

Itajaí sits at 26.9°S, 48.7°W, 6 m above sea level, in Brazil. The nearest listed city is Navegantes, 1.0 km away.

Topography around Itajaí

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

Within 3 km, the terrain around Itajaí has significant variations in elevation — a maximum elevation change of 366 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 417 m; within 80 km, large variations in elevation — a maximum elevation change of 1,140 m.

The land around Itajaí is covered by artificial surfaces (54%) and water (21%) within 3 km, water (35%) and trees (30%) within 16 km, and trees (53%) and water (34%) within 80 km.

3 km
366 m
16 km
417 m
80 km
1,140 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Navegantes 1.0 km · Balneário Camboriú 10 km · Camboriú 13 km · Penha 15 km · Balneário Piçarras 16 km · Ilhota 16 km · Itapema 21 km · Gaspar 30 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 Itajaí (-26.9078°, -48.6619°, elevation 6 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).