Weather in Curitiba in June
Brazil · 20-year averages, June
A good month. June works. It is not the peak, but nothing about it fights you. Highs average 19.2 °C, lows 9.8 °C, and rain falls on 11 days — nothing in the month is working against you.
June ranks 3 of 12 in Curitiba. Only August scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 11 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average June reaches 30 °C. Across the twenty years measured, the hottest June day reached 25 °C and the coldest night fell to -2.6 °C, and the wettest single day dropped 80 mm — roughly 75% of the month's rain in one day.
June is moderately variable: 29 mm in the driest year against 277 mm in the wettest, around an average of 106 mm. Roughly two Junes in three land near that average, and the third does something else entirely.
Wind is light at 3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 86%, high enough to notice on the warm days without dominating them.
How June sits in the year
Temperatures hold steady either side: 20.5 °C in May, 19.2 here, 19.2 in July. Nothing about the timing within the month matters much.
Daylight in June
June sits at the dark end of Curitiba's year — 10.6 hours of daylight against 13.7 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
Despite being inland, the year stays fairly even: 17.3 °C between the year's warmest afternoons and coldest nights. At 924 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself. June is the value pick for Curitiba: it scores within 7 points of August without carrying August's prices.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
June in Curitiba versus nearby
If Curitiba is one option among several, the nearby comparison is worth making. São Paulo is close enough to be a coin toss — 3.1 °C warmer, 3 days less rain. Porto Alegre is close enough to be a coin toss — within a degree on temperature, the same number of rain days.
So: June works, with August the better month by 7 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Curitiba
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 26.4 | 17.2 | 25 | 221 | 83 | 13.6 | 62 |
| February | 26.5 | 17.3 | 22 | 192 | 83 | 13 | 62 |
| March | 25.8 | 16.5 | 20 | 148 | 84 | 12.3 | 65 |
| April | 24.1 | 14.5 | 15 | 102 | 83 | 11.5 | 72 |
| May | 20.5 | 11.2 | 13 | 104 | 85 | 10.9 | 74 |
| June | 19.2 | 9.8 | 11 | 106 | 86 | 10.6 | 76 |
| July | 19.2 | 9.2 | 10 | 97 | 84 | 10.7 | 77 |
| August | 21.1 | 9.8 | 8 | 77 | 81 | 11.2 | 83 |
| September | 22.9 | 11.5 | 13 | 122 | 81 | 11.9 | 74 |
| October | 24.4 | 13.5 | 18 | 148 | 82 | 12.6 | 65 |
| November | 25.1 | 14.4 | 19 | 141 | 81 | 13.3 | 65 |
| December | 26.5 | 16.1 | 22 | 173 | 81 | 13.7 | 64 |
See all twelve months in Curitiba, or where else to go in June.
Planning the rest of the trip
- Flight time to Curitiba how long you are actually in the air
- Curitiba time zone and the difference from home
- Days until your trip count down to the departure date