May weather forecast
Toa Baja, PR

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Weather in May

With the arrival of May, Toa Baja, Puerto Rico, witnesses the progress of tropical spring. With the persistent sunshine and mild humidity, the city blossoms with life. Rain more than ever does its part in nurturing this life by contributing substantially, surging to 3.43" (87mm). Regular wind patterns add to the delightful weather conditions for locals and visitors alike. As the month ends, the weather nicely prepares the area for the refreshing months of summer.

Temperature

The commencement of May introduces an average high-temperature of a still warm 82.6°F (28.1°C), closely mirroring the preceding month. Toa Baja sees a minor drop to an average minimum temperature of 75.7°F (24.3°C) during the night in the month of May.

Heat index

During May, the heat index is computed to be a hot 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

May through July and November, with an average relative humidity of 79%, are the most humid months in Toa Baja.

Rainfall

In May, in Toa Baja, the rain falls for 22.7 days. Throughout May, 3.43" (87mm) of precipitation is accumulated. Throughout the year, in Toa Baja, there are 223.5 rainfall days, and 27.95" (710mm) of precipitation is accumulated.

Daylight

In Toa Baja, Puerto Rico, the average length of the day in May is 13h and 1min.
On the first day of May in Toa Baja, sunrise is at 5:57 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 6:57 pm AST.

Sunshine

May and June, with an average of 10.8h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Toa Baja, Puerto Rico, are May through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

How hot is it in Toa Baja in May?

In Toa Baja, 82.6°F (28.1°C) is the average high-temperature and 75.7°F (24.3°C) is the average low-temperature during May. The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in May is computed to be 89.6°F (32°C).

What is the most humid month in Toa Baja?

The months with the highest humidity are May through July and November, with an average relative humidity of 79%.

What is the average humidity in May in Toa Baja?

In May, the average relative humidity in Toa Baja is 79%.

How much does it rain in Toa Baja in May?

In May, in Toa Baja, Puerto Rico, the rain falls for 22.7 days. Throughout May, 3.43" (87mm) of precipitation is accumulated.

How many hours of daylight does Toa Baja have in May?

The average day length in May in Toa Baja is 13h and 1min.

What time are sunrise and sunset in May in Toa Baja?

On the first day of May in Toa Baja, sunrise is at 5:57 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 6:57 pm AST.

What is the month with the most sunshine in Toa Baja?

May and June, with an average of 10.8h of sunshine, are months with the most sunshine in Toa Baja, Puerto Rico.

How long on average sun shines in May in Toa Baja?

In May, the average sunshine duration is 10.8h.

When is the highest UV index in Toa Baja?

May through November, with an average maximum UV index of 7, are months with the highest UV index in Toa Baja, Puerto Rico.

How high is the UV index in May in Toa Baja?

The average daily maximum UV index in May in Toa Baja is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Toa Baja, PR

Average temperature in May - Toa Baja, PR
  • Average high temperature in May: 82.6°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (79.9°F).

  • Average low temperature in May: 75.7°F

The months with the highest average low temperature are August, September and October (78.4°F).
The coldest month (with the lowest average low temperature) is March (73°F).

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Average pressure in May
Toa Baja, PR

Average pressure in May - Toa Baja, PR
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

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Average wind speed in May
Toa Baja, PR

Average wind speed in May - Toa Baja, PR
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is July (10mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).

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Average humidity in May
Toa Baja, PR

Average humidity in May - Toa Baja, PR
  • Average humidity in May: 79%

The months with the highest relative humidity are May, June, July and November (79%).
The month with the lowest relative humidity is March (76%).

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Average rainfall in May
Toa Baja, PR

Average rainfall in May - Toa Baja, PR
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is February (0.94").

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Average rainfall days in May
Toa Baja, PR

Average rainfall days in May - Toa Baja, PR
  • Average rainfall days in May: 22.7 days

The month with the highest number of rainy days is October (24 days).
The months with the least rainy days are January and February (14.2 days).

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Average daylight in May /
Average sunshine in May
Toa Baja, PR

Average daylight in May / Average sunshine in May - Toa Baja, PR
  • Average daylight in May: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in May: 10h and 5min

The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

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Average sunshine days in May
Toa Baja, PR

Average sunshine days in May - Toa Baja, PR
  • Average sunshine days in May: 5 days

The month with the most sunshine days is January (9.8 days).
The months with the least sunshine days are October and November (3.5 days).

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Average UV index in May
Toa Baja, PR

Average UV index in May - Toa Baja, PR
  • Average UV index in May: 7

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

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Average cloud cover in May
Toa Baja, PR

Average cloud cover in May - Toa Baja, PR
  • Average cloud cover in May: 34

The months with the most cloud cover are May, July and November (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 26).

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Average visibility in May
Toa Baja, PR

Average visibility in May - Toa Baja, PR
  • Average visibility in May: 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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Toa Baja, Puerto Rico, USA

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