AI-generatedItajaí at a glance
- Best time
- Apr – Sep, Nov
- Warmest month
- Feb · 29°
- Warmest sea
- Feb · 26.7°
- Sunshine a year
- 2,000 h
- Rain a year
- 1,563 mm
- Climate
- Subtropical
- Time zone
- UTC−3
- Elevation
- 6 m
Climate in Itajaí
Itajaí has a subtropical climate with warm summers and mild winters. February is the warmest month with average highs of 29 °C, while July is the coolest at 21 °C. With around 2,000 hours of sunshine a year, Itajaí is moderately sunny; April is the sunniest month with 6.3 hours a day.
Holiday weather through the year
Best time to visit Itajaí
The best time to visit Itajaí is from April to September and in November. For a beach holiday – sea from 21 °C, warm and mostly dry – go in May. For sightseeing, day trips and hiking, conditions are most comfortable from May to August. Rain is frequent in October and from December to March; the wettest month is January with 201 mm.
Itajaí through the seasons
How the weather changes over the seasons, with averages for each.
Itajaí in spring
Sep – Nov
Good
- 22–25 °C by day
- Sea 21 °C
- 4.9 h of sun a day
- 44 rainy days in all
Itajaí in summer
Dec – Feb
Fair
- 27–29 °C by day
- Sea 26 °C
- 6.1 h of sun a day
- 58 rainy days in all
Itajaí in autumn
Mar – May
Good
- 24–28 °C by day
- Sea 24 °C
- 5.9 h of sun a day
- 44 rainy days in all
Itajaí in winter
Jun – Aug
Good
- 21–22 °C by day
- Sea 19 °C
- 5.1 h of sun a day
- 29 rainy days in all
Which month for what?
Beach & swimming
May
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Aug
15–28 °C and not too much rain
Rainy months
Oct, Dec – Mar
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Itajaí for you.
Your best months: May – June, August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: April – September, November
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 20°
- Midday, 13:00: about 24°
- Afternoon, 16:00: about 23°
- Evening, 20:00: about 21°
- Night, 23:00: about 19°
05:4018:21
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:25–06:11 · evening 17:50–18:35
- Blue hour
- Morning 05:16–05:25 · evening 18:35–18:44
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Itajaí compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 23° at the start of the month to 24° at the end. The sea warms from 20° to 22°. The days get 0.7 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 23° | 24° |
| Night-time low | 17° | 18° |
| Sea | 20° | 22° |
| Daylight | 12.3 h | 13.1 h |
What is the weather like in Itajaí in October?
In October, Itajaí is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 21.1 °C – refreshing for a swim. Expect around 4.4 hours of sunshine a day. It rains often – on about 15 days, adding up to 144 mm. All in all, October is a good month for a holiday in Itajaí.
More details for October
- Daylight
- 12 h 41 min05:40 – 18:21
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 13 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 79 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 30 %19 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Compare two months in Itajaí
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Itajaí: score 76 against 60. In July, days are 3 °C cooler than in October. The sea is 3 °C cooler in July. July has 6 fewer rainy days. The sun shines an hour longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 60 | 76better |
| Daytime high | 24° | 21° |
| Night-time low | 18° | 14° |
| Sea | 21.1° | 18.5° |
| Sunshine | 4.4 h | 5.2 hbetter |
| Rainy days | 15 | 9better |
| Rainfall | 144 mm | 85 mmbetter |
| Muggy days | 13 | 1better |
Based on the climate averages 1996–2025.
Itajaí month by month
The typical weather for every month at a glance.
52January28° · Sea 26° · 6.2 h
In January, Itajaí is hot: daytime highs average 28 °C, and even at night it stays warm at around 23 °C. The sea averages 26.4 °C – lovely and warm for swimming. Expect around 6.2 hours of sunshine a day. It rains often – on about 22 days, adding up to 201 mm. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a so-so month for a holiday in Itajaí.
Itajaí in January50February29° · Sea 27° · 6.1 h
In February, Itajaí is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 26.7 °C – lovely and warm for swimming. Expect around 6.1 hours of sunshine a day. It rains often – on about 19 days, adding up to 171 mm. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is a so-so month for a holiday in Itajaí.
Itajaí in February54March28° · Sea 26° · 6.1 h
In March, Itajaí is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 26.1 °C – lovely and warm for swimming. Expect around 6.1 hours of sunshine a day. It rains often – on about 20 days, adding up to 138 mm. The air is often humid and muggy. All in all, March is a so-so month for a holiday in Itajaí.
Itajaí in March72April26° · Sea 25° · 6.3 h
In April, Itajaí is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 24.6 °C – pleasant for swimming. Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 106 mm in total. The air is often humid and muggy. All in all, April is a good month for a holiday in Itajaí.
Itajaí in April71May24° · Sea 22° · 5.2 h
In May, Itajaí is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 22.3 °C – refreshing for a swim. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 107 mm in total. All in all, May is a good month for a holiday in Itajaí.
Itajaí in May73June22° · Sea 20° · 4.7 h
In June, Itajaí is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 20.1 °C – refreshing for a swim. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 106 mm in total. All in all, June is a good month for a holiday in Itajaí.
Itajaí in June76July21° · Sea 19° · 5.2 h
In July, Itajaí is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 85 mm in total. All in all, July is a good month for a holiday in Itajaí.
Itajaí in July76August22° · Sea 18° · 5.3 h
In August, Itajaí is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sea averages 18.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 93 mm in total. All in all, August is a good month for a holiday in Itajaí.
Itajaí in August65September22° · Sea 19° · 4.1 h
In September, Itajaí is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. The sea averages 19.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.1 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 135 mm in total. All in all, September is a good month for a holiday in Itajaí.
Itajaí in September60October24° · Sea 21° · 4.4 h
In October, Itajaí is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 21.1 °C – refreshing for a swim. Expect around 4.4 hours of sunshine a day. It rains often – on about 15 days, adding up to 144 mm. All in all, October is a good month for a holiday in Itajaí.
Itajaí in October65November25° · Sea 23° · 6.1 h
In November, Itajaí is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 23.0 °C – pleasant for swimming. Expect around 6.1 hours of sunshine a day. It rains often – on about 16 days, adding up to 134 mm. The air is often humid and muggy. All in all, November is a good month for a holiday in Itajaí.
Itajaí in November60December27° · Sea 25° · 6.0 h
In December, Itajaí is hot: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 25.0 °C – pleasant for swimming. Expect around 6.0 hours of sunshine a day. It rains often – on about 18 days, adding up to 144 mm. The air is often humid and muggy. All in all, December is a good month for a holiday in Itajaí.
Itajaí in DecemberClimate in detail
Year & climate tableWarmest in February: 29°
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Itajaí
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
PleasantOctober: nights around 18°. Ideal for sleeping, often with the window open. Muggy on about 13 days (dew point 18 °C or more).
The coolest nights are in July (14°), the warmest in February (23°). Tropical nights of 20 °C and more are the rule from December to April; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from May to June and from September to November. It is muggy (dew point 18 °C or more) on about 180 days a year, mostly from November to April.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 52 | 28° | 23° | 26.4° | 6.2 h | 22 | 201 |
| FebruaryFeb | 50 | 29° | 23° | 26.7° | 6.1 h | 19 | 171 |
| MarchMar | 54 | 28° | 22° | 26.1° | 6.1 h | 20 | 138 |
| AprilApr | 72 | 26° | 20° | 24.6° | 6.3 h | 13 | 106 |
| MayMay | 71 | 24° | 17° | 22.3° | 5.2 h | 12 | 107 |
| JuneJun | 73 | 22° | 15° | 20.1° | 4.7 h | 10 | 106 |
| JulyJul | 76 | 21° | 14° | 18.5° | 5.2 h | 9 | 85 |
| AugustAug | 76 | 22° | 14° | 18.4° | 5.3 h | 9 | 93 |
| SeptemberSep | 65 | 22° | 16° | 19.4° | 4.1 h | 13 | 135 |
| OctoberOct | 60 | 24° | 18° | 21.1° | 4.4 h | 15 | 144 |
| NovemberNov | 65 | 25° | 19° | 23.0° | 6.1 h | 16 | 134 |
| DecemberDec | 60 | 27° | 21° | 25.0° | 6.0 h | 18 | 144 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
26.91° S, 48.66° W · 6 m · America/Sao_Paulo
Sea temperatureUp to 27° in February
Sea temperature in Itajaí
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 20.3 – 22.2 °C
Swimming season: Oct – Jun
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Itajaí ranges from 18.4 °C in August to 26.7 °C in February. It is warm enough for a comfortable swim (20 °C and more) from October to June.
The sea temperature varies from year to year: in February, eight out of ten years were between 25.7 and 27.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 26.4° | 25.5° | 27.1° | warm |
| FebruaryFeb | 26.7° | 25.7° | 27.5° | warm |
| MarchMar | 26.1° | 25.2° | 27.2° | warm |
| AprilApr | 24.6° | 24.0° | 25.5° | pleasant |
| MayMay | 22.3° | 21.4° | 23.4° | refreshing |
| JuneJun | 20.1° | 19.0° | 21.4° | refreshing |
| JulyJul | 18.5° | 17.0° | 19.8° | fresh |
| AugustAug | 18.4° | 17.1° | 19.4° | fresh |
| SeptemberSep | 19.4° | 18.4° | 20.5° | fresh |
| OctoberOct | 21.1° | 20.3° | 22.2° | refreshing |
| NovemberNov | 23.0° | 22.1° | 23.7° | pleasant |
| DecemberDec | 25.0° | 24.2° | 25.7° | pleasant |
Sunshine2,000 hours a year
Sunshine hours in Itajaí
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 4.4 of 12.7 hours of daylight in Itajaí, 35 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain1,563 mm a year, most in January
Rain in Itajaí: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Itajaí has about 15 rainy days with 144 mm of rain in total.
UV indexUp to 12 in December
UV index in Itajaí
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 10 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in December (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 30 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & cloudsWindiest in November: 19 km/h
Wind and clouds in Itajaí
How breezy and how cloudy Itajaí is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Itajaí typically peaks at 18 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 79 % of the sky over Itajaí: mostly cloudy, with about 4.4 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity24 days of 30° or more a year
Heat and humidity in Itajaí
How often the day gets hot in Itajaí (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Itajaí has about 0 hot days, with an average daytime high of 24 °C: some hot or muggy days. Single hot or muggy days are possible; a hat and water bottle are enough.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Itajaí
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Itajaí in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Itajaí has its best school-holiday weather during the summer holidays (score 76) and its weakest during the Christmas holidays (score 56).
- 67
Easter holidays
Mar – Apr
Good
- 27 °C by day
- Sea 25 °C
- 6.2 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 71
May half-term
May – Jun
Good
- 23 °C by day
- Sea 22 °C
- 5.1 h of sun a day
- 11 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 76
Summer holidays
Jul – Aug
GoodBest holidays
- 21 °C by day
- Sea 18 °C
- 5.3 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 60
October half-term
Oct
Good
- 24 °C by day
- Sea 21 °C
- 4.4 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 56
Christmas holidays
Dec – Jan
Fair
- 28 °C by day
- Sea 26 °C
- 6.1 h of sun a day
- 20 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 12 h 25 min
- Distance
- 9,900 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Brazil
- Currency
- Brazilian Real (BRL)
- Language
- Portuguese
- Sockets
- Type C, N · 127 V
- Traffic
- Drives on the right
- Dialling code
- +55
UK plugs need a travel adapter
Only 127 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Itajaí compared
Put Itajaí side by side with another destination.
Itajaí vs Balneário Camboriú
In October the holiday weather in Itajaí and Balneário Camboriú is about equally good (score 60 vs 60). During the day it is about as warm in Balneário Camboriú as in Itajaí. The sea is about equally warm.
| in October | Itajaí | Balneário Camboriú |
|---|---|---|
| Holiday weather score | 60 | 60 |
| Daytime high | 24° | 24° |
| Sea | 21° | 21° |
| Sunshine | 4 h | 4 h |
| Rainy days | 15 | 15 |
| Best time | Apr – Sep, Nov | Nov – May |
Through the year
Best places in the country
Brazil in October: the best places
In October, Itajaí ranks 17 among the 31 nearest destinations in this country.
- Porto Alegre25°20°71
- 2Novo Hamburgo25°68
- 3Caxias do Sul23°65
- 4São Paulo26°65
- 5Ubatuba25°23°65
- 6Angra dos Reis25°23°65
- 7Chapecó26°64
- 8Sorocaba28°64
- 17ItajaíThis page24°21°60
Places nearby4 places within 70 km
Near Itajaí
Other destinations close by.
Places with a similar climatee.g. Ubatuba and Ilhabela
Places with a climate like Itajaí
Destinations whose weather through the year is closest to Itajaí's – good alternatives.
Frequently asked questions about Itajaí
When is the best time to visit Itajaí?
The best time to visit Itajaí is from April to September and in November. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Itajaí?
The sea temperature in Itajaí ranges from 18.4 °C in August to 26.7 °C in February. It is warm enough for a comfortable swim (20 °C and more) from October to June.
Can you swim in Itajaí in October?
Yes. In October the sea averages 21.1 °C – refreshing for a swim.
What is the warmest month in Itajaí?
February is the warmest month, with average highs of 29 °C and nights around 23 °C. July is the coolest month at 21 °C.
When does it rain most in Itajaí?
Rain is frequent in October and from December to March; the wettest month is January with 201 mm. The driest month is July with 85 mm.
How many hours of sunshine does Itajaí get?
Itajaí gets around 2,000 hours of sunshine a year. The sunniest month is April with 6.3 hours a day; in September there are 4.1 hours a day.
What time zone is Itajaí in?
Itajaí is on UTC−3 all year.
How long is the flight from London to Itajaí?
A nonstop flight from London to Itajaí takes about 12 h 25 min, for a straight-line distance of about 9,900 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Itajaí?
Itajaí has its best school-holiday weather during the summer holidays (score 76) and its weakest during the Christmas holidays (score 56). Holiday ratings (0–100): Easter holidays 67, May half-term 71, summer holidays 76, October half-term 60, Christmas holidays 56.