Climate and monthly weather forecast
Arroyo, PR

Weather in January

January, like December, in Arroyo, Puerto Rico, is another warm winter month, with an average temperature fluctuating between 79.9°F (26.6°C) and 71.4°F (21.9°C). The coldest month is January, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 71.4°F (21.9°C). Weather in January »

Weather in February

February, the last month of the winter in Arroyo, is also a moderately hot month, with an average temperature fluctuating between 80.6°F (27°C) and 71.6°F (22°C). In February, the average high-temperature is practically the same as in January - a still moderately hot 80.6°F (27°C). Weather in February »

Weather in March

The first month of the spring, March, is still a warm month in Arroyo, Puerto Rico, with an average temperature fluctuating between 71.6°F (22°C) and 81°F (27.2°C). In March, the average high-temperature is practically the same as in February - a still moderately hot 81°F (27.2°C). Weather in March »

Weather in April

April, like March, in Arroyo, Puerto Rico, is another warm spring month, with an average temperature ranging between max 81.9°F (27.7°C) and min 73°F (22.8°C). In Arroyo, Puerto Rico, the average high-temperature in April is relatively the same as in March - a still warm 81.9°F (27.7°C). Weather in April »

Weather in May

May, the last month of the spring in Arroyo, is also a moderately hot month, with an average temperature ranging between min 74.1°F (23.4°C) and max 83.1°F (28.4°C). In May, the average high-temperature is almost the same as in April - a still warm 83.1°F (28.4°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Arroyo, Puerto Rico, with an average temperature varying between 75.9°F (24.4°C) and 84.4°F (29.1°C). In June, the average high-temperature is practically the same as in May - a still warm 84.4°F (29.1°C). Weather in June »

Weather in July

July, like June, in Arroyo, Puerto Rico, is another warm summer month, with an average temperature fluctuating between 76.6°F (24.8°C) and 84.7°F (29.3°C). In July, the average high-temperature is relatively the same as in June - a still moderately hot 84.7°F (29.3°C). Weather in July »

Weather in August

August, the last month of the summer in Arroyo, is also a moderately hot month, with an average temperature ranging between max 85.3°F (29.6°C) and min 76.6°F (24.8°C). With an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 76.6°F (24.8°C), August is the warmest month. The average heat index in August is evaluated at a torrid 97.7°F (36.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Arroyo, is also a moderately hot month, with an average temperature varying between 76.3°F (24.6°C) and 85.1°F (29.5°C). In Arroyo, Puerto Rico, the average high-temperature in September is relatively the same as in August - a still warm 85.1°F (29.5°C). Weather in September »

Weather in October

October, like September, in Arroyo, Puerto Rico, is another warm autumn month, with an average temperature ranging between min 75.9°F (24.4°C) and max 84°F (28.9°C). In October, the average high-temperature is essentially the same as in September - a still warm 84°F (28.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in Arroyo, Puerto Rico, with an average temperature ranging between max 82.4°F (28°C) and min 74.5°F (23.6°C). In November, the average high-temperature is relatively the same as in October - a still moderately hot 82.4°F (28°C). Weather in November »

Weather in December

December, the first month of the winter in Arroyo, is also a moderately hot month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 72.9°F (22.7°C). In Arroyo, Puerto Rico, the average high-temperature in December is essentially the same as in November - a still warm 80.8°F (27.1°C). Weather in December »
[Resources]

FAQ

What is the coldest month in Arroyo?

With an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 71.4°F (21.9°C), January is the coldest month in Arroyo, Puerto Rico.

How much does it rain in Arroyo?

In Arroyo, Puerto Rico, during the entire year, the rain falls for 255.3 days and collects up to 29.41" (747mm) of precipitation.

When is the lowest UV index in Arroyo?

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 6.

What is the driest month in Arroyo?

The month with the least rainfall is February, when the rain falls for 15.4 days and typically collects 1.02" (26mm) of precipitation.

What are the months with the coldest ocean in Arroyo?

February and March, with an average ocean temperature of 79.3°F (26.3°C), are months with the coldest seawater in Arroyo.

What is the least humid month in Arroyo?

March is the least humid month, with an average relative humidity of 77%.

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

May through October, with an average maximum UV index of 7, are months with the highest UV index in Arroyo, Puerto Rico.

When are the longest days in Arroyo?

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

What month has the most sunshine in Arroyo?

June has the most sunshine of the year in Arroyo, Puerto Rico, with an average of 10.4h of sunshine.

What is the warmest month in Arroyo?

August is the warmest month in Arroyo, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 76.6°F (24.8°C).

What is the rainiest month in Arroyo?

September is the month with the most rainfall in Arroyo. Rain falls for 23.7 days and accumulates 4.29" (109mm) of precipitation.

When is the ocean warmest in Arroyo?

The month with the warmest seawater in Arroyo is September, with an average ocean temperature of 85.5°F (29.7°C).

What is the most humid month in Arroyo?

November is the most humid month, with an average relative humidity of 82%.

What is the month with the shortest days in Arroyo?

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

Is there Daylight Saving Time (DST) in Arroyo?

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

What is the month with the least sunshine in Arroyo?

The month with the least sunshine is December, with an average of 6.5h of sunshine.

Average temperature
Arroyo, PR

Average temperature - Arroyo, PR

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (79.9°F).

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

[Resources]

Average pressure
Arroyo, PR

Average pressure - Arroyo, PR

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

[Resources]

Average wind speed
Arroyo, PR

Average wind speed - Arroyo, PR

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is October (6mph).

[Resources]

Average rainfall
Arroyo, PR

Average rainfall - Arroyo, PR

The wettest month (with the highest rainfall) is September (4.29").
The driest month (with the least rainfall) is February (1.02").

[Resources]

Average rainfall days
Arroyo, PR

Average rainfall days - Arroyo, PR

The months with the highest number of rainy days are May and October (25.3 days).
The month with the least rainy days is February (15.4 days).

[Resources]

Average sea temperature
Arroyo, PR

Average sea temperature - Arroyo, PR

The best month for swimming (with the highest average sea temperature) is September (85.4°F).
The coldest months (with the lowest average sea temperature) are February and March (79.3°F).

[Resources]

Average daylight / Average sunshine
Arroyo, PR

Average daylight / Average sunshine - Arroyo, 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: 10.4h).
The month with the least sunshine is December (Average sunshine: 6.5h).

[Resources]

Average sunshine days
Arroyo, PR

Average sunshine days - Arroyo, PR

The month with the most sunshine days is January (8.8 days).
The month with the least sunshine days is May (2.7 days).

[Resources]

Average UV index
Arroyo, PR

Average UV index - Arroyo, PR

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

[Resources]

Average visibility
Arroyo, PR

Average visibility - Arroyo, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location