Climate averages 1991–2020
Castro weather
in April.
A warm, moderately wet month: the 7th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Castro: daytime highs average 23.0°C and nights cool to about 14.9°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 69 mm of rain on roughly 10 days, which makes April a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 32 min on an average April day.
The nearest other city in this atlas is Ponta Grossa (37 km away). In April its highs average 22.9°C, about as warm as Castro, with 70 mm of rain.
Among the 448 cities listed in Brazil, Castro ranks joint 424th of 448 for the warmest April highs and joint 124th of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Castro is 4.0°C cooler than that mean.
From April to May, average highs fall by 3.1°C to 19.8°C, and monthly rainfall rises from 69 mm to 89 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Castro climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.3°C17.8°C | 17.8°C | 235 | 23.7 | 13.513 h |
| February | 25.2°C17.8°C | 17.8°C | 180 | 21.1 | 12.913 h |
| March | 24.4°C16.9°C | 16.9°C | 133 | 18.0 | 12.212 h |
| April, selected | 23.0°C14.9°C | 14.9°C | 69 | 9.6 | 11.512 h |
| May | 19.8°C11.9°C | 11.9°C | 89 | 8.9 | 10.911 h |
| June | 18.9°C10.8°C | 10.8°C | 93 | 8.1 | 10.611 h |
| July | 18.8°C10.1°C | 10.1°C | 79 | 7.0 | 10.811 h |
| August | 20.7°C10.8°C | 10.8°C | 72 | 7.2 | 11.311 h |
| September | 22.1°C12.5°C | 12.5°C | 127 | 10.4 | 11.912 h |
| October | 23.4°C14.4°C | 14.4°C | 138 | 15.1 | 12.713 h |
| November | 23.9°C15.2°C | 15.2°C | 133 | 16.0 | 13.313 h |
| December | 25.1°C16.9°C | 16.9°C | 172 | 20.2 | 13.614 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Ponta Grossa in AprilBrazil · 37 kmHigh 22.9°C · Low 14.4°C · 70 mm rain
- Telêmaco Borba in AprilBrazil · 80 kmHigh 24.9°C · Low 15.7°C · 71 mm rain
- Campo Largo in AprilBrazil · 89 kmHigh 22.1°C · Low 14.6°C · 75 mm rain
- Almirante Tamandaré in AprilBrazil · 92 kmHigh 22.4°C · Low 15.1°C · 70 mm rain
- Colombo, Brazil in AprilBrazil · 97 kmHigh 21.8°C · Low 14.7°C · 70 mm rain
- Curitiba in AprilBrazil · 103 kmHigh 22.3°C · Low 15.1°C · 74 mm rain
- Araucária in AprilBrazil · 108 kmHigh 22.4°C · Low 15.0°C · 75 mm rain
- Pinhais in AprilBrazil · 110 kmHigh 22.3°C · Low 15.3°C · 74 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Castro) is explained once on the Castro year overview and on the Sources, method and limits page.