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Average Weather in Curitiba Brazil

Curitiba has a mild humid temperate climate with warm summers and no dry season. The temperature typically varies from 48°F to 81°F over the course of the year, and is rarely below 39°F or above 88°F.

The warm season lasts for 113 days, from November 30 to March 23, with an average daily high temperature above 78°F. The hottest day of the year is February 13, with an average high of 81°F and low of 64°F.

The cool season lasts for 90 days, from May 13 to August 11, with an average daily high temperature below 70°F. The coldest day of the year is July 28, with an average low of 48°F and high of 68°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature with percentile bands, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDeccoldcoldcoolcoolcomfortablecomfortablewarmwarm
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Sun

The length of the day in Curitiba varies over the course of the year. In 2017, the shortest day is June 21, with 10 hours, 33 minutes of daylight; the longest day is December 21, with 13 hours, 44 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:43 AM on October 14, and the latest sunrise is 1 hour, 22 minutes later at 7:04 AM on February 18. The earliest sunset is at 5:33 PM on June 8, and the latest sunset is 2 hours, 39 minutes later at 8:12 PM on January 11.

Daylight saving time (DST) is observed in Curitiba during 2017, starting in the spring on October 15 and ending in the fall on February 18.

Sunrise & Sunset with Twilight and Daylight Saving Time

The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Clouds

In Curitiba, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Curitiba begins around March 8 and lasts for 201 days, ending around September 25. On April 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 40% of the time.

The cloudier part of the year begins around September 25 and lasts for 164 days, ending around March 8. On February 9, the cloudiest day of the year, the sky is overcast or mostly cloudy 64% of the time, and clear, mostly clear, or partly cloudy 36% of the time.

Cloud Cover

clearerclearercloudiercloudiercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 964%Feb 964%Apr 2140%Apr 2140%Mar 852%Mar 852%Sep 2552%Sep 2552%overcastovercastmostly cloudymostly cloudypartly cloudypartly cloudymostly clearmostly clearclearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Curitiba varies significantly throughout the year.

The wetter season lasts 170 days, from October 5 to March 24, with a greater than 46% chance of a given day being a wet day. The chance of a wet day peaks at 70% on February 6.

The drier season lasts 195 days, from March 24 to October 5. The smallest chance of a wet day is 22% on August 11.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 70% on February 6.

Daily Chance of Precipitation

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day in the year. Curitiba experiences very significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Curitiba. The most rain falls during the 31 days centered around January 26, with an average total accumulation of 8.1 inches.

The least rain falls around August 13, with and average total accumulation of 2.8 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Curitiba experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 153 days, from November 15 to April 17, during which time the comfort level is muggy, oppressive, or miserable at least 11% of the time. The muggiest day of the year is February 12, with muggy conditions 44% of the time.

The least muggy day of the year is July 21, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

muggymuggymuggymuggy0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 210%Jul 210%Feb 1244%Feb 1244%Nov 1511%Nov 1511%Apr 1711%Apr 1711%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Curitiba does not vary significantly over the course of the year, remaining within 0.2 miles per hour of 2.1 miles per hour throughout.

Average Wind Speed

0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mphJanFebMarAprMayJunJulAugSepOctNovDecOct 302.3 mphOct 302.3 mphMay 61.9 mphMay 61.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Curitiba is from the east throughout the year.

Wind Direction

0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestwestsouthsoutheasteastnorthnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Curitiba is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 118 days, from December 18 to April 15, with an average temperature above 77°F. The day of the year with the warmest water is February 13, with an average temperature of 80°F.

The time of year with cooler water lasts for 101 days, from June 21 to September 30, with an average temperature below 68°F. The day of the year with the coolest water is August 7, with an average temperature of 65°F.

Average Water Temperature

The daily average water temperature (purple line) with percentile bands, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 102 days, from October 27 to February 6, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is December 5, with an average of 6.8 kWh.

The darker period of the year lasts for 85 days, from May 11 to August 4, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is June 25, with an average of 3.4 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

The area within 2 miles of Curitiba is covered by artificial surfaces (67%) and shrubs (25%), within 10 miles by artificial surfaces (28%) and shrubs (27%), and within 50 miles by trees (72%) and cropland (12%).

The topography within 2 miles of Curitiba contains only modest variations in elevation, with a maximum elevation change of 308 feet, and an average elevation above sea level of 3,024 feet. Within 10 miles contains very significant variations in elevation (827 feet). Within 50 miles contains extreme variations in elevation (6,043 feet).

Data Sources

This report illustrates the typical weather in Curitiba, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Curitiba Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Curitiba.

At a distance of 15 kilometers from Curitiba, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are are corrected for the elevation difference between the station and Curitiba according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .