May weather forecast
Casais Robustos, Portugal

May

Weather in May

May, the last month of the spring in Casais Robustos, is a warm month, with an average temperature fluctuating between 12°C (53.6°F) and 23.8°C (74.8°F).

Temperature

Casais Robustos's May weather indicates a minor ascent in high-temperatures, adjusting from an enjoyable 19.6°C (67.3°F) in April to a warm 23.8°C (74.8°F). Casais Robustos observes an average low-temperature of 12°C (53.6°F) during May nights.

Humidity

In May, the average relative humidity is 68%.

Rainfall

In Casais Robustos, in May, during 9.5 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Casais Robustos, during the entire year, the rain falls for 113.2 days and collects up to 426mm (16.77") of precipitation.

Daylight

In Casais Robustos, the average length of the day in May is 14h and 22min.
On the first day of May in Casais Robustos, Portugal, sunrise is at 06:34 and sunset at 20:28. On the last day of the month, sunrise is at 06:09 and sunset at 20:55 WEST.

Sunshine

In May, the average sunshine is 9.9h.

UV index

In Casais Robustos, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 5 during May translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What is the average May temperature?
The high-temperature, in May, in Casais Robustos, is 23.8°C (74.8°F), while the low-temperature averages to 12°C (53.6°F).
What is the average humidity in May?
The average relative humidity in May is 68%.
How much does it rain in May?
In Casais Robustos, in May, during 9.5 rainfall days, 32mm (1.26") of precipitation is typically accumulated.
What is the average length of the day in May?
In Casais Robustos, the average day length in May is 14h and 22min.
When are sunrise and sunset in May?
On the first day of May, sunrise is at 06:34 and sunset at 20:28. On the last day of the month, sunrise is at 06:09 and sunset at 20:55 WEST.
How many hours of sunshine does Casais Robustos have in May?
In May, the average sunshine duration is 9.9h.
How high is the UV index in May in Casais Robustos?
In Casais Robustos, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Casais Robustos, Portugal
  • Average high temperature in May: 23.8°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in May: 12°C

The month with the highest average low temperature is July (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.2°C).

Average pressure in May
Casais Robustos, Portugal
  • Average pressure in May: 1016.2mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in May
Casais Robustos, Portugal
  • Average wind speed in May: 12.3km/h

The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is October (10.5km/h).

Average humidity in May
Casais Robustos, Portugal
  • Average humidity in May: 68%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (61%).

Average rainfall in May
Casais Robustos, Portugal
  • Average rainfall in May: 32mm

The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (4mm).

Average rainfall days in May
Casais Robustos, Portugal
  • Average rainfall days in May: 9.5 days

The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is August (3 days).

Average daylight in May /
Average sunshine in May
Casais Robustos, Portugal
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in May
Casais Robustos, Portugal
  • Average sunshine days in May: 19.8 days

The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is April (14 days).

Average UV index in May
Casais Robustos, Portugal
  • Average UV index in May: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in May
Casais Robustos, Portugal
  • Average cloud cover in May: 30

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in May
Casais Robustos, Portugal
  • Average visibility in May: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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