July weather forecastViana, Spain

July

Weather in July

July, like June, in Viana, Spain, is another warm summer month, with temperature in the range of an average low of 13.9°C (57°F) and an average high of 27.5°C (81.5°F).

Temperature

A minor escalation in the average high-temperature is seen with the onset of July, moving from a warm 24.1°C (75.4°F) in June to a still moderately hot 27.5°C (81.5°F). During July, Viana notes a substantial drop from the daytime peak to an average minimum temperature of 13.9°C (57°F).

Heat index

For July, the heat index is calculated to be 29°C (84.2°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The average relative humidity in July in Viana is 66%.

Rainfall

In Viana, in July, it is raining for 9.3 days, with typically 23mm (0.91") of accumulated precipitation. Throughout the year, there are 133.7 rainfall days, and 275mm (10.83") of precipitation is accumulated.

Snowfall

In Viana, Spain, snow does not fall in April through November.

Daylight

In Viana, the average length of the day in July is 14h and 56min.
On the first day of July in Viana, sunrise is at 06:36 and sunset at 21:50. On the last day of the month, sunrise is at 07:01 and sunset at 21:30 CEST.

Sunshine

July has the most sunshine of the year, with an average of 11.3h of sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In July, in Viana, the average high-temperature is 27.5°C (81.5°F), and the average low-temperature is 13.9°C (57°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 29°C (84.2°F).

In July, the average relative humidity in Viana, Spain, is 66%.

In Viana, in July, during 9.3 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

In Viana, Spain, snow does not fall in April through November.

In Viana, Spain, the average day length in July is 14h and 56min.

In July, on the first day of the month, sunrise is at 06:36 and sunset at 21:50. On the last day of the month, in Viana, Spain, sunrise is at 07:01 and sunset at 21:30 CEST.

With an average of 11.3h of sunshine, July has the most sunshine of the year.

In July, the average sunshine duration is 11.3h.

July is the month with the highest UV index in Viana, Spain, with an average maximum UV index of 6.

In Viana, Spain, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

24.1°C

27.5°C

28.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.9km/h

10.7km/h

10.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.7

17.3

20.1

Average UV index

Average cloud cover

Average visibility

Average temperature in July
Viana, Spain

Average high temperature in July: 27.5°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.8°C).

Average low temperature in July: 13.9°C

The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

Average pressure in July
Viana, Spain

Average pressure in July: 1017.4mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in July
Viana, Spain

Average wind speed in July: 9.7km/h

The windiest month (with the highest average wind speed) is February (13.3km/h).
The calmest month (with the lowest average wind speed) is September (9km/h).

Average humidity in July
Viana, Spain

Average humidity in July: 66%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (62%).

Average rainfall in July
Viana, Spain

Average rainfall in July: 23mm

The wettest month (with the highest rainfall) is November (37mm).
The driest month (with the least rainfall) is September (10mm).

Average rainfall days in July
Viana, Spain

Average rainfall days in July: 9.3 days

The month with the highest number of rainy days is April (14.4 days).
The month with the least rainy days is August (6.7 days).

Average snowfall in July
Viana, Spain

Average snowfall in July: 0mm

The month with the highest snowfall is February (23mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in July
Viana, Spain

Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in July /
Average sunshine in July
Viana, Spain

Average daylight in July: 14h and 54min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

Average sunshine in July: 11h and 18min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).

Average sunshine days in July
Viana, Spain

Average sunshine days in July: 17.3 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are April and May (11.8 days).

Average UV index in July
Viana, Spain

Average UV index in July: 6

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 2).

Average cloud cover in July
Viana, Spain

Average cloud cover in July: 23

The months with the most cloud cover are January and November (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in July
Viana, Spain

Average visibility in July: 10km

The months with the highest visibility are June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March, April, May and November (9km).