Curitiba weather in May
In May, Curitiba has an average high of 20 °C68 °F and an average low of 11 °C51 °F, with about 104 mm4.1 in of precipitation. It is the 9th warmest month of the year and ranks 9th for precipitation.
How May compares with other months
Compared with April, May is 3.4 °C6.1 °F cooler on average. Compared with June, May is 1.4 °C2.5 °F warmer on average. Daylight lasts about 10.9 hours around the middle of the month. Average relative humidity is 85% and the average cloud amount 63%.
Is May a good time to visit Curitiba?
May is not among the most comfortable months by our comfort score: it is cool (average high 20 °C68 °F) and it is fairly wet (104 mm4.1 in). The most comfortable months in Curitiba are April and August.
What to wear in May
For Curitiba in May, pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Curitiba | 2068 | 1151 | 1044.1 |
| Paranaguá | 2475 | 1661 | 1124.4 |
| Ponta Grossa | 2169 | 1050 | 1054.1 |
| Joinville | 2374 | 1762 | 1114.4 |
| Jaraguá do Sul | 2475 | 1560 | 1114.4 |
| Blumenau | 2374 | 1559 | 1154.5 |
| Itajaí | 2474 | 1661 | 1134.5 |
| Brusque | 2374 | 1661 | 1134.5 |
| Guarapuava | 1966 | 949 | 1345.3 |
Nearby places that are more than 1 °C1.8 °F warmer in May: Paranaguá, Joinville, Jaraguá do Sul and Blumenau; cooler: Guarapuava.
Other months in Curitiba
- January26 °C78 °F / 17 °C62 °F
- February26 °C79 °F / 17 °C62 °F
- March25 °C77 °F / 16 °C60 °F
- April23 °C74 °F / 14 °C57 °F
- May20 °C68 °F / 11 °C51 °F
- June19 °C65 °F / 9 °C48 °F
- July18 °C65 °F / 8 °C47 °F
- August20 °C69 °F / 9 °C48 °F
- September22 °C72 °F / 11 °C51 °F
- October24 °C75 °F / 13 °C55 °F
- November24 °C76 °F / 14 °C57 °F
- December26 °C79 °F / 16 °C60 °F
Frequently asked questions
How warm is Curitiba in May?
In May the average high in Curitiba is 20 °C (68 °F) and the average low is 11 °C (51 °F).
Does it rain a lot in Curitiba in May?
On average about 104 mm (4.1 in) of precipitation falls in May; it ranks 9th of the 12 months.
Is May the warmest month in Curitiba?
No. The warmest month in Curitiba is December, with an average high of 26 °C (79 °F). The coldest month is July, with an average low of 8 °C (47 °F).
How long is the day in Curitiba in May?
In the middle of May the day in Curitiba lasts about 10.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Curitiba in May?
The average relative humidity in May is about 85%. This is a long-term average for the whole day.
How cloudy is Curitiba in May?
On average about 63% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.