Weather in Curitiba in April

A good month. April works. It is not the peak, but nothing about it fights you. You should expect rain on 15 days of the month, which is more days wet than dry.

April ranks 6 of 12 in Curitiba: past the worst of the year but short of August, which is the month to book if the dates are open.

Rain on 15 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 April reaches 30 °C. Across the twenty years measured, the hottest April day reached 31.5 °C and the coldest night fell to 3.3 °C, and the wettest single day dropped 82 mm — roughly 80% of the month's rain in one day.

April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 205 mm against 30 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 102 mm average is a reasonable planning figure, not a promise.

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 83%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way down: 1.7 °C cooler than March, with May dropping another 3.6 °C. The first week and the last are not the same trip. Rain has already shifted: 5 days fewer than March had.

Daylight in April

11.5 hours of daylight, losing 0.7 hours across the month. That is between Curitiba's extremes of 13.7 and 10.6 hours, so days are long enough not to constrain the plan.

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.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April 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 — within a degree on temperature, 2 days less rain. Porto Alegre is close enough to be a coin toss — within a degree on temperature, 4 days less rain.

So: April works, with August the better month by 11 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Curitiba

See all twelve months in Curitiba, or where else to go in April.