July weather forecast
Alter do Chão, Portugal

July

Weather in July

July in Alter do Chão, Portugal, is a hot summer month, with an average temperature varying between 32.8°C (91°F) and 17.6°C (63.7°F).

Temperature

Observing a minor shift, the average high-temperature during July adjusts from June's warm 28.5°C (83.3°F) to a hot 32.8°C (91°F). A noteworthy thermal contrast characterizes Alter do Chão's July nights, with temperatures averaging at a comfortable 17.6°C (63.7°F).

Heat index

The heat index value during July is evaluated at a torrid 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in July in Alter do Chão is 46%.

Rainfall

July is the month with the least rainfall. Rain falls for 1.7 days and accumulates 3mm (0.12") of precipitation.

Snowfall

In Alter do Chão, snow does not fall in April through December.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of July in Alter do Chão, Portugal, sunrise is at 06:08 and sunset at 21:00. On the last day of the month, sunrise is at 06:30 and sunset at 20:43 WEST.

Sunshine

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

UV index

In July, the average daily maximum UV index in Alter do Chão is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, a regular UV index of 6 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

How hot is it in Alter do Chão in July?
During July, Alter do Chão experiences an average high-temperature of 32.8°C (91°F) and a low-temperature of 17.6°C (63.7°F). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 35°C (95°F).
What is the average humidity in July in Alter do Chão?
In Alter do Chão, the average relative humidity in July is 46%.
What is the driest month in Alter do Chão?
July is the month with the least rainfall in Alter do Chão. Rain falls for 1.7 days and accumulates 3mm (0.12") of precipitation.
How much does it rain in Alter do Chão in July?
In July, in Alter do Chão, Portugal, the rain falls for 1.7 days. Throughout July, 3mm (0.12") of precipitation is accumulated.
When it does not snow in Alter do Chão?
In Alter do Chão, Portugal, snow does not fall in April through December.
How many hours of daylight does Alter do Chão have in July?
In Alter do Chão, Portugal, the average day length in July is 14h and 37min.
When is the sunrise / sunset in July in Alter do Chão?
In July, on the first day of the month, sunrise is at 06:08 and sunset at 21:00. On the last day of the month, in Alter do Chão, Portugal, sunrise is at 06:30 and sunset at 20:43 WEST.
What is the month with the most sunshine in Alter do Chão?
July and August, with an average of 11.8h of sunshine, are months with the most sunshine in Alter do Chão.
How long on average sun shines in July in Alter do Chão?
The average sunshine duration in July is 11.8h.
What is the UV index reading in July in Alter do Chão?
In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in July
Alter do Chão, Portugal
  • Average high temperature in July: 32.8°C

The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (11.9°C).

  • Average low temperature in July: 17.6°C

The month with the highest average low temperature is August (17.7°C).
The coldest month (with the lowest average low temperature) is January (4.2°C).

Average pressure in July
Alter do Chão, Portugal
  • Average pressure in July: 1015.4mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

Average wind speed in July
Alter do Chão, Portugal
  • Average wind speed in July: 10.1km/h

The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).

Average humidity in July
Alter do Chão, Portugal
  • Average humidity in July: 46%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (43%).

Average rainfall in July
Alter do Chão, Portugal
  • Average rainfall in July: 3mm

The wettest month (with the highest rainfall) is November (39mm).
The driest month (with the least rainfall) is July (3mm).

Average rainfall days in July
Alter do Chão, Portugal
  • Average rainfall days in July: 1.7 days

The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is July (1.7 days).

Average snowfall in July
Alter do Chão, Portugal
  • Average snowfall in July: 0mm

The month with the highest snowfall is February (5mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in July
Alter do Chão, Portugal
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in July /
Average sunshine in July
Alter do Chão, Portugal
  • Average daylight in July: 14h and 4min

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 30min).

  • Average sunshine in July: 11h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in July
Alter do Chão, Portugal
  • Average sunshine days in July: 28.7 days

The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is April (16.6 days).

Average UV index in July
Alter do Chão, Portugal
  • Average UV index in July: 6

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in July
Alter do Chão, Portugal
  • Average cloud cover in July: 8

The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 8).

Average visibility in July
Alter do Chão, Portugal
  • Average visibility in July: 10km

The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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