Weather in Alcatraz Heliport, United States
Weather Advisories
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Today's weather summary
The weather in Alcatraz Heliport on Saturday, July 25th, is going to be clear throughout the day.
Also, there's a high chance of few clouds before dawn, around 12 am.
Weather details for Alcatraz Heliport, on Saturday, July 25th:
The maximum temperature of the day is going to be 17°C around 3 pm. The day will have very high relative humidity, with average humidity of 81%, ranging from 69% to a maximum value of 91% at about 1 am. The wind will be breezy, and will get up to 30 km/h at 3 pm, blowing from the west. The cloud coverage will range from 2% around 11 am to as high as 21% around 1 am with an average of 7%.
There is no probability for any precipitation throughout the day. The dew point will range from 13°C up to a maximum value of 14°C around 1 am.
The visibility is expected to be good with average visibility of 15 km throughout the day. Atmospheric pressure will be normal with average pressure of 1016 hPa. Sunrise will be at 6:07 am, and sunset at 8:24 pm. The day will have 14 hours and 17 minutes of daylight.
Air quality forecast for Alcatraz Heliport, on Saturday, July 25th:
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 24 and 57.
Pollen forecast for Alcatraz Heliport, on Saturday, July 25th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in Alcatraz Heliport on Sunday, July 26th, will be clear throughout the day.
Also, there's a high chance of few clouds before dawn, at about 1 am.
Weather details for Alcatraz Heliport, on Sunday, July 26th:
The maximum temperature of the day is going to be 17°C at about 4 pm. The day will have very high relative humidity, with average humidity of 85%, ranging from 72% to a maximum value of 94% at about 7 am. The wind will be breezy, and will get up to 30 km/h at 4 pm, blowing from the west. The cloud coverage will range from 0% around 6 pm to as high as 59% around 7 am with an average of 16%.
There is no probability for any precipitation throughout the day. The dew point will range from 12°C up to a maximum value of 14°C around 1 pm.
The visibility is expected to be good with average visibility of 15 km throughout the day. Atmospheric pressure will be normal with average pressure of 1017 hPa. Sunrise will be at 6:08 am, and sunset at 8:23 pm. The day will have 14 hours and 15 minutes of daylight.
Air quality forecast for Alcatraz Heliport, on Sunday, July 26th:
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 32 and 53.
Pollen forecast for Alcatraz Heliport, on Sunday, July 26th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
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