Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Agat, Guam, is a moderately hot winter month, with temperature in the range of an average low of 80.6°F (27°C) and an average high of 82°F (27.8°C). In January, the average high-temperature is relatively the same as in December - a still warm 82°F (27.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also a moderately hot month in Agat, Guam, with an average temperature ranging between min 79.7°F (26.5°C) and max 81.7°F (27.6°C). The coldest month is February, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 79.7°F (26.5°C). In February, the average heat index is estimated at a hot 87.8°F (31°C). Weather in February »
Weather in March
The first month of the spring, March, is still a warm month in Agat, Guam, with an average temperature fluctuating between 80.1°F (26.7°C) and 82°F (27.8°C). In March, the average high-temperature is relatively the same as in February - a still warm 82°F (27.8°C). Weather in March »
Weather in April
April, like March, in Agat, Guam, is a moderately hot spring month, with an average temperature ranging between max 82.9°F (28.3°C) and min 81.1°F (27.3°C). In Agat, the average high-temperature in April is almost the same as in March - a still warm 82.9°F (28.3°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Agat, Guam, with an average temperature fluctuating between 84.2°F (29°C) and 82.2°F (27.9°C). In May, the average high-temperature is essentially the same as in April - a still warm 84.2°F (29°C). Weather in May »
Weather in June
June, the first month of the summer in Agat, is also a moderately hot month, with an average temperature varying between 84.6°F (29.2°C) and 83.3°F (28.5°C). In June, the average high-temperature is relatively the same as in May - a still moderately hot 84.6°F (29.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Agat, Guam, with an average temperature ranging between max 84.7°F (29.3°C) and min 82.9°F (28.3°C). The warmest months are July and August, with an average high-temperature of 84.7°F (29.3°C). In July, the average heat index is estimated at a very hot 95°F (35°C). Weather in July »
Weather in August
August, the last month of the summer in Agat, is also a moderately hot month, with an average temperature varying between 82.4°F (28°C) and 84.7°F (29.3°C). July and August, with an average high-temperature of 84.7°F (29.3°C), are the warmest months. The average heat index in August is estimated at a sweltering 95°F (35°C). Weather in August »
Weather in September
September, the first month of the autumn in Agat, is still a warm month, with an average temperature ranging between max 84.4°F (29.1°C) and min 82.8°F (28.2°C). In Agat, the average high-temperature in September is essentially the same as in August - a still warm 84.4°F (29.1°C). Weather in September »
Weather in October
October, like September, in Agat, Guam, is another warm autumn month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 82.6°F (28.1°C). In Agat, Guam, the average high-temperature in October remains the same as in September - a still moderately hot 84.4°F (29.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is another warm month in Agat, Guam, with an average temperature fluctuating between 84.2°F (29°C) and 82.8°F (28.2°C). In November, the average high-temperature is essentially the same as in October - a still moderately hot 84.2°F (29°C). Weather in November »
Weather in December
December, the first month of the winter in Agat, is also a moderately hot month, with an average temperature varying between 82°F (27.8°C) and 83.5°F (28.6°C). In Agat, the average high-temperature in December is essentially the same as in November - a still warm 83.5°F (28.6°C). Weather in December »
[Resources]FAQ
What are the most humid months in Agat?
January, March through May, October through December, with an average relative humidity of 78%, are most humid months in Agat, Guam.
How many days does it rain in Agat?
In Agat, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.
When is 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.
What is the coldest month in Agat?
The coldest month in Agat is February, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 79.7°F (26.5°C).
What is the driest month in Agat?
March is the month with the least rainfall. Rain falls for 20.2 days and accumulates 1.81" (46mm) of precipitation.
When are the longest days in Agat?
June has the longest days of the year in Agat, with an average of 12h and 54min of daylight.
What month has the most sunshine in Agat?
June has the most sunshine of the year in Agat, Guam, with an average of 10.6h of sunshine.
What are the warmest months in Agat?
Warmest months are July and August, with an average high-temperature of 84.7°F (29.3°C).
What is the least humid month in Agat?
August is the least humid month in Agat, Guam, with an average relative humidity of 76%.
What is the rainiest month in Agat?
September is the month with the most rainfall. Rain falls for 28.1 days and accumulates 10.28" (261mm) of precipitation.
When is the lowest UV index in Agat?
September is the month with the lowest UV index in Agat, Guam, with an average maximum UV index of 6.
What is the month with the least sunshine in Agat?
November has the least sunshine of the year in Agat, with an average of 6.3h of sunshine.
What is the month with the shortest days in Agat?
The month with the shortest days in Agat, Guam, is December, with an average of 11h and 22min of daylight.
Is there Daylight Saving Time (DST) in Agat?
Agat does not observe Daylight Saving Time (DST). ChST timezone is used over the entire year.
Average temperature
Agat, GU
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).
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).
Average pressure
Agat, GU
- Average pressure in January:
29.86"Hg - Average pressure in February:
29.88"Hg - Average pressure in March:
29.87"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.85"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.8"Hg - Average pressure in August:
29.79"Hg - Average pressure in September:
29.79"Hg - Average pressure in October:
29.79"Hg - Average pressure in November:
29.82"Hg - Average pressure in December:
29.83"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).
Average wind speed
Agat, GU
- Average wind speed in January:
15.8mph - Average wind speed in February:
16.3mph - Average wind speed in March:
15mph - Average wind speed in April:
13.7mph - Average wind speed in May:
11.7mph - Average wind speed in June:
11.6mph
- Average wind speed in July:
10.3mph - Average wind speed in August:
9.6mph - Average wind speed in September:
9.9mph - Average wind speed in October:
11.2mph - Average wind speed in November:
14.7mph - Average wind speed in December:
15.7mph
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).
Average humidity
Agat, GU
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%).
Average rainfall
Agat, GU
- Average rainfall in January:
2.83" - Average rainfall in February:
2.28" - Average rainfall in March:
1.81" - Average rainfall in April:
2.44" - Average rainfall in May:
3.31" - Average rainfall in June:
3.7"
- Average rainfall in July:
7.52" - Average rainfall in August:
9.76" - Average rainfall in September:
10.28" - Average rainfall in October:
8.46" - Average rainfall in November:
4.69" - Average rainfall in December:
2.99"
The wettest month (with the highest rainfall) is September (10.28").
The driest month (with the least rainfall) is March (1.81").
Average rainfall days
Agat, GU
- Average rainfall days in January:
21.3 days - Average rainfall days in February:
17.5 days - Average rainfall days in March:
20.2 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
23.1 days - Average rainfall days in June:
25.4 days
- Average rainfall days in July:
28.9 days - Average rainfall days in August:
28.9 days - Average rainfall days in September:
28.1 days - Average rainfall days in October:
28.7 days - Average rainfall days in November:
24.3 days - Average rainfall days in December:
22.8 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).
Average daylight / Average sunshine
Agat, GU
- Average daylight in January:
11h and 26min - Average daylight in February:
11h and 43min - Average daylight in March:
12h and 4min - Average daylight in April:
12h and 26min - Average daylight in May:
12h and 44min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 50min - Average daylight in August:
12h and 34min - Average daylight in September:
12h and 13min - Average daylight in October:
11h and 50min - Average daylight in November:
11h and 31min - Average daylight in December:
11h and 22min
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 22min).
- Average sunshine in January:
7h and 36min - Average sunshine in February:
8h and 0min - Average sunshine in March:
8h and 6min - Average sunshine in April:
8h and 30min - Average sunshine in May:
10h and 30min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
8h and 36min - Average sunshine in August:
7h and 36min - Average sunshine in September:
7h and 54min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 18min - Average sunshine in December:
6h and 30min
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).
Average sunshine days
Agat, GU
- Average sunshine days in January:
5.4 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
6.6 days - Average sunshine days in April:
5.8 days - Average sunshine days in May:
4.3 days - Average sunshine days in June:
2.1 days
- Average sunshine days in July:
1.4 days - Average sunshine days in August:
1.6 days - Average sunshine days in September:
1.1 days - Average sunshine days in October:
1.4 days - Average sunshine days in November:
3.6 days - Average sunshine days in December:
4.7 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).
Average UV index
Agat, GU
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).
Average cloud cover
Agat, GU
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).
Average visibility
Agat, GU
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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