This report describes the typical weather at the San Carlos de Bariloche International Airport (San Carlos de Bariloche, Argentina) weather station over the course of an average July 4. It is based on the historical records from 1990 to 2012. Earlier records are either unavailable or unreliable.
San Carlos de Bariloche has a mediterranean climate with dry warm summers and mild winters. The area within 25 mi of this station is covered by forests (82%), lakes and rivers (8%), shrublands (7%), and grasslands (2%).
The temperature typically varies from 33°F to 42°F and is rarely below 24°F or above 49°F.
The coolest hours of the day are from 2am to 11am with the coldest at 9am, at which time the temperature is below 38°F three days out of four.
The warmest hours of the day are from 1pm to 6pm with the hottest at 4pm, at which time the temperature is above 38°F three days out of four.
The day has gained half its heat by noon and lost it again by 8pm.
On July 4 the Sun rises at 9:10am and sets at 6:27pm.
Solar noon is at 1:49pm.
For reference, on the longest day of the year the Sun rises at 6:08am and sets at 9:17pm, while on the shortest day of the year it rises at 9:10am and sets at 6:22pm.
Astronomical twilight begins and ends 99 minutes before sunrise and after sunset at 7:30am and 8:07pm, respectively.
Nautical twilight begins and ends 66 minutes before sunrise and after sunset at 8:04am and 7:33pm, respectively.
Civil twilight begins and ends 31 minutes before sunrise and after sunset at 8:39am and 6:59pm, respectively.
Solar twilight begins and ends 43 minutes after sunrise and before sunset at 9:54am and 5:44pm, respectively.
The median cloud cover ranges from 70% (partly cloudy) to 83% (mostly cloudy).
At 1am, the clearest time of the day, the sky is clear, mostly clear, or partly cloudy 43% of the time, and overcast or mostly cloudy 37% of the time.
At noon, the cloudiest time of the day, the sky is overcast, mostly cloudy, or partly cloudy 68% of the time, and clear or mostly clear 16% of the time.
The sky is typically clearing in earnest by 9pm.
The clouds have typically started forming in earnest by 8am.
There is a 57% chance that precipitation will be observed at some point during the day.
When precipitation does occur it is most often in the form of moderate rain (42% of days with precipitation have at worst moderate rain), moderate snow (25%), slight rain (9%), drizzle (8%), slight snow (7%), and heavy rain (5%).
Precipitation is most likely around 9am and least likely around 2am.
There is a 6% chance that there will be snow on the ground. The average snow depth is 0.9". The snow depth is deeper than 1.3" one year in four and deeper than 1.5" one year in ten.
The relative humidity typically ranges from 69% (mildly humid) to 84% (humid), rarely dropping below 50% (mildly humid), or exceeding 94% (very humid).
The air is driest at 4pm, at which time the relative humidity is less than 81% (humid) three days out of four; it is most humid at 6am, exceeding 79% (humid) three days out of four.
The dew point ranges from 28°F to 32°F with an average of 30°F.
For reference, comfortable indoor conditions should have a relative humidity between 30% and 50% with a dew point of less than 65°F.
Sustained wind speeds typically vary from 10 mph to 14 mph (gentle breeze to moderate breeze) over the course of the day.
The peak sustained wind speed typically occurs around 5pm and is rarely outside the range 2 mph to 24 mph (light air to strong breeze).
The wind is most calm around 2am, rarely exceeding 22 mph (fresh breeze).
The wind is most often out of the west (34% of the time). The wind is least often out of the north (1% of the time), south west (1% of the time), north east (1% of the time), and south (2% of the time).