May weather forecast
Santana, Portugal

May

Weather in May

May, the last month of the spring in Santana, is another refreshing month, with temperature in the range of an average low of 17.3°C (63.1°F) and an average high of 18.8°C (65.8°F).

Temperature

Santana's entry into May measures an average high-temperature of a still refreshing 18.8°C (65.8°F), closely parallel to the preceding month. During May, the nighttime temperatures align closely with the daytime averages, measuring a still comfortable 17.3°C (63.1°F).

Humidity

The average relative humidity in May is 77%.

Rainfall

In Santana, during May, the rain falls for 7.6 days and regularly aggregates up to 9mm (0.35") of precipitation. Throughout the year, there are 116.4 rainfall days, and 232mm (9.13") of precipitation is accumulated.

Sea temperature

In Santana, the average seawater temperature in May is 19°C (66.2°F).
Note: Swimming in water of 19°C (66.2°F) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in May is 13h and 51min.
On the first day of the month, sunrise is at 07:19 and sunset at 20:49. On the last day of May, sunrise is at 07:00 and sunset at 21:10 WEST.

Sunshine

The average sunshine in May is 8.5h.

UV index

January through June, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What is the average May temperature?
The average high-temperature, in May, in Santana, is 18.8°C (65.8°F), while the average low-temperature is 17.3°C (63.1°F).
What is the average humidity in May?
The average relative humidity in May is 77%.
How much does it rain in May?
In Santana, in May, during 7.6 rainfall days, 9mm (0.35") of precipitation is typically accumulated.
What is the sea water temperature in May in Santana?
In Santana, in May, the average water temperature is 19°C (66.2°F). Swimming in 19°C (66.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
How many hours of daylight does Santana have in May?
In May, the average day length is 13h and 51min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 07:19 and sunset at 20:49. On the last day of the month, sunrise is at 07:00 and sunset at 21:10 WEST.
How long on average sun shines in May?
In May, the average sunshine duration is 8.5h.
What are the months with the lowest UV index?
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 5.
What is the UV index intensity in May in Santana?
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Santana, Portugal
  • Average high temperature in May: 18.8°C

The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).

  • Average low temperature in May: 17.3°C

The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).

Average pressure in May
Santana, Portugal
  • Average pressure in May: 1019.2mbar

The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).

Average wind speed in May
Santana, Portugal
  • Average wind speed in May: 20.1km/h

The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).

Average humidity in May
Santana, Portugal
  • Average humidity in May: 77%

The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).

Average rainfall in May
Santana, Portugal
  • Average rainfall in May: 9mm

The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).

Average rainfall days in May
Santana, Portugal
  • Average rainfall days in May: 7.6 days

The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).

Average sea temperature in May
Santana, Portugal
  • Average sea temperature in May: 19°C

The best months for swimming (with the highest average sea temperature) are August and September (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (18°C).

Average daylight in May /
Average sunshine in May
Santana, Portugal
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).

Average sunshine days in May
Santana, Portugal
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).

Average UV index in May
Santana, Portugal
  • Average UV index in May: 5

The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).

Average cloud cover in May
Santana, Portugal
  • Average cloud cover in May: 33

The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in May
Santana, Portugal
  • Average visibility in May: 10km

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

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