May weather forecast
Portoviejo, Ecuador

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Weather in May

May in Portoviejo makes a significant diversion from the previous months’ weather patterns. Comparing to the past months, May experiences a drastic drop in rainfall, reaching as low as 27mm (1.06"). Massive reduction in rainy days and significantly less cloud coverage means more bright, sunny days. Although there is a slight dip in the upper temperature measurements, the city stays warm and inviting. Friendly wind conditions accompany the uplifting weather, making May a pleasant time to be in Portoviejo.

Temperature

Portoviejo experiences the peak of its temperatures in April and May, when the average high-temperatures rise to 29.8°C (85.6°F).

Heat index

During May, the heat index is computed to be a fiery hot 37°C (98.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Portoviejo, the average relative humidity in May is 78%.

Rainfall

In Portoviejo, during May, the rain falls for 16.8 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 185.1 rainfall days, and 544mm (21.42") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 4min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:21. On the last day of May, sunrise is at 06:17 and sunset at 18:21 -05.

Sunshine

The average sunshine in May is 6.4h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

What is the warmest month?

Warmest months are April and May, with an average high-temperature of 29.8°C (85.6°F).

How hot is May?

In Portoviejo, 29.8°C (85.6°F) is the average high-temperature and 21.7°C (71.1°F) is the average low-temperature during May. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in May is computed to be 37°C (98.6°F).

What is the average humidity in May?

In May, the average relative humidity is 78%.

How many days does it rain in May?

In May, the rain falls for 16.8 days. Throughout May, 27mm (1.06") of precipitation is accumulated.

How many hours of daylight does Portoviejo have in May?

The average day length in May is 12h and 4min.

When is the sunrise / sunset in May?

On the first day of May in Portoviejo, sunrise is at 06:16 and sunset at 18:21. On the last day of the month, sunrise is at 06:17 and sunset at 18:21 -05.

How long on average sun shines in May?

The average sunshine duration in May is 6.4h.

What are the months with the highest UV index?

The months with the highest UV index are January through December, with an average maximum UV index of 6.

When is the lowest UV index?

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

What is the UV index reading in May in Portoviejo?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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 temperature in May
Portoviejo, Ecuador

Average temperature in May - Portoviejo, Ecuador
  • Average high temperature in May: 29.8°C

The warmest months (with the highest average high temperature) are April and May (29.8°C).
The month with the lowest average high temperature is January (28.4°C).

  • Average low temperature in May: 21.7°C

The month with the highest average low temperature is January (22.4°C).
The coldest month (with the lowest average low temperature) is August (19.6°C).

Average pressure in May
Portoviejo, Ecuador

Average pressure in May - Portoviejo, Ecuador
  • Average pressure in May: 1011.5mbar

The months with the highest atmospheric pressure are August, September and October (1012.1mbar).
The month with the lowest atmospheric pressure is February (1010.9mbar).

Average wind speed in May
Portoviejo, Ecuador

Average wind speed in May - Portoviejo, Ecuador
  • Average wind speed in May: 6.4km/h

The windiest months (with the highest average wind speed) are October and November (8.4km/h).
The calmest month (with the lowest average wind speed) is March (5.5km/h).

Average humidity in May
Portoviejo, Ecuador

Average humidity in May - Portoviejo, Ecuador
  • Average humidity in May: 78%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (69%).

Average rainfall in May
Portoviejo, Ecuador

Average rainfall in May - Portoviejo, Ecuador
  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is January (132mm).
The driest months (with the least rainfall) are July and September (6mm).

Average rainfall days in May
Portoviejo, Ecuador

Average rainfall days in May - Portoviejo, Ecuador
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is February (26.5 days).
The month with the least rainy days is August (4.9 days).

Average daylight in May /
Average sunshine in May
Portoviejo, Ecuador

Average daylight in May / Average sunshine in May - Portoviejo, Ecuador
  • Average daylight in May: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).

  • Average sunshine in May: 6h and 2min

The months with the most sunshine are August and September (Average sunshine: 6h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in May
Portoviejo, Ecuador

Average sunshine days in May - Portoviejo, Ecuador
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is February (1 days).

Average UV index in May
Portoviejo, Ecuador

Average UV index in May - Portoviejo, Ecuador
  • Average UV index in May: 6

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

Average cloud cover in May
Portoviejo, Ecuador

Average cloud cover in May - Portoviejo, Ecuador
  • Average cloud cover in May: 52

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 46).

Average visibility in May
Portoviejo, Ecuador

Average visibility in May - Portoviejo, Ecuador
  • Average visibility in May: 10km

The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are February and March (8km).

Portoviejo, Ecuador

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