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Average Weather in October in Curitiba Brazil

In Curitiba, the month of October is characterized by gradually rising daily high temperatures, with daily highs increasing by 4°F, from 71°F to 74°F over the course of the month, and rarely exceeding 83°F or dropping below 60°F.

Daily low temperatures increase by 3°F, from 56°F to 59°F, rarely falling below 50°F or exceeding 65°F.

For reference, on January 21, the hottest day of the year, temperatures in Curitiba typically range from 65°F to 79°F, while on July 23, the coldest day of the year, they range from 50°F to 67°F.

Average High and Low Temperature in October

The daily average high (red line) and low (blue line) temperature, 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 hourly average temperatures for the quarter of the year centered on October. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in October

Average Hourly Temperature in October in Curitiba18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMSepNovcoolcoldcoolwarmcomfortable
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 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.

Port Elizabeth, South Africa (4,439 miles away) and Fandrandava, Madagascar (5,979 miles) are the far-away foreign places with temperatures most similar to Curitiba (view comparison).

Clouds

The month of October in Curitiba experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 55% throughout the month. The highest chance of overcast or mostly cloudy conditions is 56% on October 20.

The clearest day of the month is October 31, with clear, mostly clear, or partly cloudy conditions 46% of the time.

For reference, on February 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 64%, while on April 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 60%.

Cloud Cover Categories in October

Cloud Cover Categories in October in Curitiba1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovApr 2160%Apr 2160%Oct 146%Oct 146%Oct 3146%Oct 3146%Oct 1144%Oct 1144%Oct 2144%Oct 2144%mostly clearpartly cloudymostly cloudyclearovercast
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. In Curitiba, the chance of a wet day over the course of October is gradually increasing, starting the month at 44% and ending it at 46%.

For reference, the year's highest daily chance of a wet day is 70% on February 7, and its lowest chance is 22% on August 14.

Probability of Precipitation in October

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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during October in Curitiba is decreasing, starting the month at 5.3 inches, when it rarely exceeds 8.9 inches or falls below 2.4 inches, and ending the month at 4.7 inches, when it rarely exceeds 7.3 inches or falls below 2.4 inches.

Average Monthly Rainfall in October

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.

Sun

Over the course of October in Curitiba, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 43 minutes, implying an average daily increase of 1 minute, 26 seconds, and weekly increase of 10 minutes, 4 seconds.

The shortest day of the month is October 1, with 12 hours, 20 minutes of daylight and the longest day is October 31, with 13 hours, 3 minutes of daylight.

Hours of Daylight and Twilight in October

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 of the month in Curitiba is 5:43 AM on October 14 and the latest sunrise is 59 minutes later at 6:42 AM on October 15.

The earliest sunset is 6:16 PM on October 1 and the latest sunset is 1 hour, 16 minutes later at 7:32 PM on October 31.

Daylight saving time (DST) starts at 1:00 AM on October 15, 2017, shifting sunrise and sunset to be an hour later.

For reference, on December 21, the longest day of the year, the Sun rises at 6:23 AM and sets 13 hours, 44 minutes later, at 8:07 PM, while on June 21, the shortest day of the year, it rises at 7:02 AM and sets 10 hours, 33 minutes later, at 5:35 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in October

Sunrise & Sunset with Twilight and Daylight Saving Time in October in Curitiba1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSepNov5:43 AM5:43 AMOct 146:22 PMOct 146:22 PM6:29 AM6:29 AMOct 317:32 PMOct 317:32 PM5:56 AM5:56 AMOct 16:16 PMOct 16:16 PMOct 15DSTOct 15DSTSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of October. 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.

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.

The chance that a given day will be muggy in Curitiba is increasing during October, rising from 1% to 8% over the course of the month.

For reference, on February 13, the muggiest day of the year, there are muggy conditions 39% of the time, while on August 6, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in October

Humidity Comfort Levels in October in Curitiba1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%10%20%30%40%50%60%70%80%90%100%SepNovOct 11%Oct 11%Oct 318%Oct 318%Oct 113%Oct 113%Oct 215%Oct 215%humidhumiddrydrymuggymuggycomfortablecomfortable
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 is essentially constant during October, remaining around 4.2 miles per hour throughout.

For reference, on October 30, the windiest day of the year, the daily average wind speed is 4.2 miles per hour, while on May 6, the calmest day of the year, the daily average wind speed is 3.5 miles per hour.

The highest daily average wind speed during October is 4.2 miles per hour on October 30.

Average Wind Speed in October

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Curitiba throughout October is predominantly from the east, with a peak proportion of 64% on October 31.

Wind Direction in October

Wind Direction in October in Curitiba1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNoveastnorthwestsouth
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 surface water temperature in Curitiba is gradually increasing during October, rising by 3°F, from 68°F to 72°F, over the course of the month.

Average Water Temperature in October

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

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Curitiba are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in October

Time Spent in Various Temperature Bands and the Growing Season in October in Curitiba1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNov100%Oct 16100%Oct 16coldcoolwarmcomfortable
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Curitiba are increasing during October, increasing by 414°F, from 900°F to 1,315°F, over the course of the month.

Growing Degree Days in October

The average growing degree days accumulated over the course of October, 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 in Curitiba is gradually increasing during October, rising by 0.8 kWh, from 5.4 kWh to 6.2 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in October

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

For the purposes of this report, the geographical coordinates of Curitiba are -25.428 deg latitude, -49.273 deg longitude, and 3,022 ft elevation.

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 only modest variations in elevation (827 feet). Within 50 miles contains very significant variations in elevation (6,043 feet).

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%).

Data Sources

This report illustrates the typical weather in Curitiba year round, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Curitiba.

For each station, the records are corrected for the elevation difference between that 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.

The estimated value at Curitiba is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Curitiba and a given station.

The stations contributing to this reconstruction are: Parana Airport (84%, 4.8 kilometers, northeast) and Curitiba Airport (16%, 15 kilometers, southeast).

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 .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.