Weather in Saint Helena, United States
Weather Advisories
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Today's weather summary
The weather in Saint Helena on Thursday, April 18th, is going to be clear for most of the day, together with some clouds during the morning.
There is also a chance for few clouds in the early morning around 6 am.
Weather details for Saint Helena, on Thursday, April 18th:
The maximum temperature of the day is going to be 55°F around 6 pm. The day will have comfortable humidity, with average humidity of 50%, ranging from 29% to a maximum value of 76% at about 7 am. The wind will be breezy, and will get up to 11 mph at 8 pm, blowing from the north-east. The cloud coverage will range from 0% around midnight to as high as 95% around 9 am with an average of 25%.
There is no probability for any precipitation throughout the day. The dew point will range from 19°F up to a maximum value of 27°F around 8 pm.
The visibility is expected to be good with average visibility of 11 mi throughout the day. Atmospheric pressure will be high with average pressure of 1020 hPa. Sunrise will be at 6:12 am, and sunset at 7:42 pm, making it a total of 13 hours and 30 minutes of daylight.
Air quality forecast for Saint Helena, on Thursday, April 18th:
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 64.
Pollen forecast for Saint Helena, on Thursday, April 18th:
Tree pollen on this day is expected to have medium risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in Saint Helena on Friday, April 19th, will be cloudy throughout the day, with few clouds before dawn.
There is also a chance for many clouds around noon at about 12 pm.
Weather details for Saint Helena, on Friday, April 19th:
The maximum temperature during the day will be 60°F at about 5 pm. The day will be dry, with average humidity of 43%, ranging from 28% to a maximum value of 63% at about 5 am. The wind will be breezy, and will get up to 10 mph at 7 pm, blowing from the north-east. The cloud coverage will range from 18% around midnight to as high as 97% around 9 am with an average of 61%.
There is no probability for any precipitation throughout the day. The dew point will range from 24°F up to a maximum value of 29°F around 11 pm.
The visibility is expected to be good with average visibility of 15 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1014 hPa. Sunrise will be at 6:11 am, and sunset at 7:43 pm. The day will have 13 hours and 32 minutes of daylight.
Air quality forecast for Saint Helena, on Friday, April 19th:
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 28 and 49.
Pollen forecast for Saint Helena, on Friday, April 19th:
Tree pollen on this day is expected to have low 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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