Weather in Alcatraz, United States
Weather Advisories
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Tomorrow's weather summary
The weather in Alcatraz on Saturday, July 25th, will be clear throughout the day.
Also, there's a high chance of few clouds before dawn, around 2 am.
Weather details for Alcatraz, on Saturday, July 25th:
The highest temperature during the day is going to be 20°C at about 2 pm. The day will have very high relative humidity, with average humidity of 82%, ranging from 67% to a maximum value of 92% at about 11 pm. The wind will be strong, and will get up to 33 km/h at 6 pm, blowing from the west. The cloud coverage will range from 3% around 4 pm to as high as 16% around 5 am with an average of 8%.
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 9 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 1016 hPa. Sunrise will be at 6:07 am, and sunset at 8:24 pm, making it a total of 14 hours and 17 minutes of daylight.
Air quality forecast for Alcatraz, on Saturday, July 25th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 29 and 57.
Pollen forecast for Alcatraz, 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 on Sunday, July 26th, will change throughout the day from lightly foggy condition to clear.
According to our models light fog will emerge in the early morning and a high probability for clear skies in the afternoon.
Weather details for Alcatraz, on Sunday, July 26th:
The highest temperature during the day will be 19°C around 4 pm. The day will have very high relative humidity, with average humidity of 86%, ranging from 71% to a maximum value of 97% at about 7 am. The wind will be strong, and will get up to 33 km/h at 4 pm, blowing from the west. The cloud coverage will range from 0% around 5 pm to as high as 61% around 6 am with an average of 19%.
There is no probability for any precipitation throughout the day. The dew point will range from 12°C up to a maximum value of 13°C around midnight.
The visibility is expected to be good with average visibility of 14 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 8:24 pm, making it a total of 14 hours and 16 minutes of daylight.
Air quality forecast for Alcatraz, 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, 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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