Climate and monthly weather forecast
Guayanilla, PR

Weather in January

January, like December, in Guayanilla, Puerto Rico, is a moderately hot winter month, with an average temperature fluctuating between 72°F (22.2°C) and 81.9°F (27.7°C). January is the coldest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 72°F (22.2°C). The average heat index in January is appraised at a tropical 87.8°F (31°C). Weather in January »

Weather in February

The last month of the winter, February, is another warm month in Guayanilla, Puerto Rico, with an average temperature varying between 82°F (27.8°C) and 71.6°F (22°C). In Guayanilla, Puerto Rico, the average high-temperature in February is essentially the same as in January - a still moderately hot 82°F (27.8°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderately hot month in Guayanilla, Puerto Rico, with an average temperature ranging between max 82.4°F (28°C) and min 71.4°F (21.9°C). In March, the average high-temperature is relatively the same as in February - a still warm 82.4°F (28°C). Weather in March »

Weather in April

April, like March, in Guayanilla, Puerto Rico, is a moderately hot spring month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 83.7°F (28.7°C). In Guayanilla, the average high-temperature in April is relatively the same as in March - a still moderately hot 83.7°F (28.7°C). Weather in April »

Weather in May

May, the last month of the spring in Guayanilla, is also a moderately hot month, with an average temperature varying between 74.7°F (23.7°C) and 84.7°F (29.3°C). In May, the average high-temperature is relatively the same as in April - a still moderately hot 84.7°F (29.3°C). Weather in May »

Weather in June

June, the first month of the summer in Guayanilla, is still a warm month, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 76.5°F (24.7°C). In Guayanilla, the average high-temperature in June is relatively the same as in May - a still moderately hot 85.8°F (29.9°C). Weather in June »

Weather in July

July in Guayanilla, Puerto Rico, is a hot summer month, with an average temperature ranging between min 76.6°F (24.8°C) and max 86.4°F (30.2°C). In July, the average high-temperature is essentially the same as in June - a tropical 86.4°F (30.2°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Guayanilla, Puerto Rico, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 76.6°F (24.8°C). With an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 76.6°F (24.8°C), August is the warmest month. In August, the average heat index is appraised at a sweltering 99.9°F (37.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a tropical month in Guayanilla, Puerto Rico, with temperature in the range of an average high of 86.2°F (30.1°C) and an average low of 76.5°F (24.7°C). In September, the average high-temperature is essentially the same as in August - a still tropical 86.2°F (30.1°C). Weather in September »

Weather in October

October, like September, in Guayanilla, Puerto Rico, is another warm autumn month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 76.6°F (24.8°C). In October, the average high-temperature is practically the same as in September - a warm 85.1°F (29.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Guayanilla, Puerto Rico, with an average temperature fluctuating between 74.8°F (23.8°C) and 83.8°F (28.8°C). In November, the average high-temperature is practically the same as in October - a still moderately hot 83.8°F (28.8°C). Weather in November »

Weather in December

December, the first month of the winter in Guayanilla, is still a warm month, with an average temperature fluctuating between 82.4°F (28°C) and 73.2°F (22.9°C). In Guayanilla, Puerto Rico, the average high-temperature in December is relatively the same as in November - a still warm 82.4°F (28°C). Weather in December »
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FAQ

What is the coldest month in Guayanilla?

With an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 72°F (22.2°C), January is the coldest month in Guayanilla, Puerto Rico.

What is the driest month in Guayanilla?

January is the month with the least rainfall in Guayanilla, Puerto Rico. Rain falls for 15.6 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in Guayanilla?

Throughout the year, there are 224.9 rainfall days, and 23.58" (599mm) of precipitation is accumulated.

When it does not snow in Guayanilla?

January through August, October through December are months without snowfall.

How many days does it snow in Guayanilla?

In Guayanilla, during the entire year, snow falls for 0.1 days.

What are the months with the lowest UV index in Guayanilla?

The months with the lowest UV index in Guayanilla, Puerto Rico, are January through March, November and December, with an average maximum UV index of 6.

What is the least humid month in Guayanilla?

The least humid month in Guayanilla is March, with an average relative humidity of 75%.

What is the month with the highest UV index in Guayanilla?

April through October, with an average maximum UV index of 7, are months with the highest UV index.

When are the longest days in Guayanilla?

With an average of 13h and 11min of daylight, June has the longest days of the year in Guayanilla, Puerto Rico.

What month has the most sunshine in Guayanilla?

The month with the most sunshine is June, with an average of 11.3h of sunshine.

What is the warmest month in Guayanilla?

With an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 76.6°F (24.8°C), August is the warmest month in Guayanilla.

What is the rainiest month in Guayanilla?

September is the month with the most rainfall in Guayanilla. Rain falls for 20.9 days and accumulates 3.58" (91mm) of precipitation.

When does it snow in Guayanilla?

September is the only month when snow falls in Guayanilla, Puerto Rico.

What is the snowiest month in Guayanilla?

September has the most snowfall days of the year. Snow falls for 0.1 days.

What is the most humid month in Guayanilla?

With an average relative humidity of 80%, November is the most humid month in Guayanilla.

What is the month with the least sunshine in Guayanilla?

The month with the least sunshine in Guayanilla is November, with an average of 7.1h of sunshine.

What is the month with the shortest days in Guayanilla?

December has the shortest days of the year, with an average of 11h and 4min of daylight.

Is there Daylight Saving Time (DST) in Guayanilla?

Guayanilla does not utilize Daylight Saving Time (DST). AST timezone is used over the entire year.

Average temperature
Guayanilla, PR

Average temperature - Guayanilla, PR

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81.9°F).

The months with the highest average low temperature are July, August and October (76.6°F).
The coldest month (with the lowest average low temperature) is March (71.4°F).

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Average pressure
Guayanilla, PR

Average pressure - Guayanilla, PR

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).

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Average wind speed
Guayanilla, PR

Average wind speed - Guayanilla, PR

The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.6mph).

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Average rainfall
Guayanilla, PR

Average rainfall - Guayanilla, PR

The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days
Guayanilla, PR

Average rainfall days - Guayanilla, PR

The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).

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Average snowfall days
Guayanilla, PR

Average snowfall days - Guayanilla, PR

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average daylight / Average sunshine
Guayanilla, PR

Average daylight / Average sunshine - Guayanilla, PR

The month with the longest days is June (Average daylight: 13h and 11min).
The month with the shortest days is December (Average daylight: 11h and 4min).

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).

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Average sunshine days
Guayanilla, PR

Average sunshine days - Guayanilla, PR

The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is November (5.1 days).

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Average UV index
Guayanilla, PR

Average UV index - Guayanilla, PR

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

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Average visibility
Guayanilla, PR

Average visibility - Guayanilla, PR

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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