Itajaí in Fall
In fall (March, April and May), Itajaí sees average daytime highs around 24°C and overnight lows near 19°C, with 360 mm of rain over about 44 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 27°C in early March to 21°C by late May. The sky is clear or mostly clear about 29% of the time across fall, and the air most often feels muggy.
Fall is Itajaí's 2nd-best season to visit on our travel score. For the whole year in context, see Itajaí's year-round climate.
- Avg daytime high
- 24°C
- 2nd-warmest season
- Avg overnight low
- 19°C
- Rainfall
- 360 mm
- 44 wet days
- Avg wind
- 9 km/h
- Travel score
- 6.0
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Itajaí in Fall
Over the season highs ease from about 27°C in early March to 21°C by late May.
A typical fall day in Itajaí reaches about 24°C and drops to 19°C overnight. The warmest of the three months is March, the coolest May.
Itajaí weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 22° | 215 | 21.8 | 13.5 | 4.7 |
| Feb | 27° / 22° | 194 | 19.5 | 13 | 4.7 |
| Mar | 26° / 21° | 147 | 19.5 | 12.2 | 5.2 |
| Apr | 25° / 19° | 98 | 12.6 | 11.4 | 6.4 |
| May | 22° / 16° | 115 | 11.6 | 10.7 | 6.4 |
| Jun | 20° / 14° | 109 | 9.8 | 10.3 | 6.3 |
| Jul | 19° / 13° | 98 | 10.4 | 10.5 | 6.1 |
| Aug | 20° / 14° | 98 | 9.9 | 11 | 6.3 |
| Sep | 21° / 16° | 153 | 12.9 | 11.8 | 5.8 |
| Oct | 22° / 17° | 143 | 15.4 | 12.6 | 5.6 |
| Nov | 24° / 19° | 143 | 16.9 | 13.3 | 5.7 |
| Dec | 26° / 21° | 157 | 18.4 | 13.7 | 5.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 29% of the time across fall.
Chance of precipitation in Fall
Itajaí gets around 360 mm of rain over 44 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early March to 10 h 24 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.8 kWh/m².
Is fall a good time to visit Itajaí?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Itajaí for sightseeing.
What to pack for Itajaí in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Itajaí sees daytime highs around 24°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 44 days see rain.
Sea temperature near Itajaí in Fall
The nearest coast averages about 24°C across fall — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 27 | 26 | 25 | 22 | 20 | 18 | 18 | 19 | 21 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Cool | Cool | Cool | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 27 | Warm |
| Mar | 26 | Warm |
| Apr | 25 | Warm |
| May | 22 | Refreshing |
| Jun | 20 | Refreshing |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 19 | Cool |
| Oct | 21 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Itajaí in Fall
Clear-sky midday UV across fall averages around 8 — enough to warrant sun protection. 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 11 | 8 | 5 | 5 | 5 | 6 | 8 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
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.
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
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.