October weather forecast
Agat, GU

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Weather in October

October predicts the onset of cooler months in Agat and also represents a respite from the high rainfall of previous months. The weather conditions start to slightly cool down from the high heat of summer, though temperatures remain balmy for the warmth seekers. The humidity and rainfall, upon transition from September to October, register a considerable decline, bringing pleasant conditions across the town. As November approaches, Agat experiences a noticeable decrease in rainfall and a slight cool down in temperature.

Temperature

Agat's October is marked by a high-temperature average of a still moderately hot 84.4°F (29.1°C), unchanged from the previous month. In Agat, the month of October records an average minimum temperature of 82.6°F (28.1°C), a slight dip from the daily highs.

Heat index

The heat index value during October is calculated to be a very hot 95°F (35°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the highest humidity are January, March through May, October through December, with an average relative humidity of 78%.

Rainfall

In Agat, in October, during 28.7 rainfall days, 8.46" (215mm) of precipitation is typically accumulated. Throughout the year, in Agat, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Daylight

In October, the average length of the day is 11h and 50min.
On the first day of October in Agat, sunrise is at 6:10 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 5:54 pm ChST.

Sunshine

The average sunshine in October is 6.9h.

UV index

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 during October translates into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

Is it hot in Agat during October?

During October, Agat experiences an average high-temperature of 84.4°F (29.1°C) and a low-temperature of 82.6°F (28.1°C). In October, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 95°F (35°C).

What are the most humid months in Agat?

The months with the highest humidity in Agat are January, March through May, October through December, with an average relative humidity of 78%.

What is the average humidity in October in Agat?

In Agat, Guam, the average relative humidity in October is 78%.

How many days does it rain in October in Agat?

In Agat, Guam, in October, it is raining for 28.7 days, with typically 8.46" (215mm) of accumulated precipitation.

What is the average length of the day in October in Agat?

The average day length in October is 11h and 50min.

What time are sunrise and sunset in October in Agat?

In October, on the first day of the month, sunrise is at 6:10 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 5:54 pm ChST.

How many hours of sunshine does Agat have in October?

In October, the average sunshine duration in Agat is 6.9h.

What are the months with the highest UV index in Agat?

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Agat, Guam.

What is the UV index intensity in October in Agat?

The average daily maximum UV index in October is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Agat, GU

Average temperature in October - Agat, GU
  • Average high temperature in October: 84.4°F

The warmest months (with the highest average high temperature) are July and August (84.7°F).
The month with the lowest average high temperature is February (81.7°F).

  • Average low temperature in October: 82.6°F

The month with the highest average low temperature is June (83.3°F).
The coldest month (with the lowest average low temperature) is February (79.7°F).

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Average pressure in October
Agat, GU

Average pressure in October - Agat, GU
  • Average pressure in October: 29.79"Hg

The month with the highest atmospheric pressure is February (29.88"Hg).
The months with the lowest atmospheric pressure are August, September and October (29.79"Hg).

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Average wind speed in October
Agat, GU

Average wind speed in October - Agat, GU
  • Average wind speed in October: 11.2mph

The windiest month (with the highest average wind speed) is February (16.3mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

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Average humidity in October
Agat, GU

Average humidity in October - Agat, GU
  • Average humidity in October: 78%

The months with the highest relative humidity are January, March, April, May, October, November and December (78%).
The month with the lowest relative humidity is August (76%).

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Average rainfall in October
Agat, GU

Average rainfall in October - Agat, GU
  • Average rainfall in October: 8.46"

The wettest month (with the highest rainfall) is September (10.28").
The driest month (with the least rainfall) is March (1.81").

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Average rainfall days in October
Agat, GU

Average rainfall days in October - Agat, GU
  • Average rainfall days in October: 28.7 days

The months with the highest number of rainy days are July and August (28.9 days).
The month with the least rainy days is February (17.5 days).

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Average daylight in October /
Average sunshine in October
Agat, GU

Average daylight in October / Average sunshine in October - Agat, GU
  • Average daylight in October: 11h and 5min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).

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Average sunshine days in October
Agat, GU

Average sunshine days in October - Agat, GU
  • Average sunshine days in October: 1.4 days

The month with the most sunshine days is March (6.6 days).
The month with the least sunshine days is September (1.1 days).

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Average UV index in October
Agat, GU

Average UV index in October - Agat, GU
  • Average UV index in October: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).

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Average cloud cover in October
Agat, GU

Average cloud cover in October - Agat, GU
  • Average cloud cover in October: 46

The months with the most cloud cover are January, August and October (Cloud cover 46).
The months with the least cloud cover are May and June (Cloud cover 39).

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Average visibility in October
Agat, GU

Average visibility in October - Agat, GU
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Agat, Guam, USA

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