Temperatures in July
It's warm in July in Viana do Castelo with an average temperature of 25°C. Temperatures this month range from a low of 23°C to a high of 27°C. At night, you can expect temperatures between 15°C and 17°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Viana do Castelo in July. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of July
The month of July starts in Viana do Castelo with warm temperatures, averaging around 25°C during the day and nights close to 16°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-July
By mid-July, the average daytime temperature rises to around 26°C, with nights close to 17°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of July
By the end of July, the average daytime temperature in Viana do Castelo will be around 25°C, with nights close to 17°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Water temperature
The water temperature at Viana do Castelo is 15°C this month. This is probably too cold to swim without protective gear.
Precipitation in July
In July, there is an average of 14 mm of precipitation, spread over 3 days. The wind speed is around 3 Bft, mostly coming from the West.
The precipitation chance averages 11% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in July for Viana do Castelo. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Viana do Castelo in July |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 23°C | |
 High Temp |
27°C | 27°C | |
| Low Temp |
23°C | 21°C | |
 Total Precipitation |
14 mm | 52 mm | |
| Rainy Days |
3 days | 9 days | |
June
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit Viana do Castelo?
Want nice weather? Then July is a great time to be in Viana do Castelo. You’ll have pleasant temperatures and little chance of rain this month.
Temperature records for Viana do Castelo in July
With 38°C, Viana do Castelo hit the highest temperature in the last 10 years in July 2020. The lowest daytime temperature in this month was 18°C in 2021. The extreme night temperatures ranged from a low of 10°C to a high of 25°C.
Check out the climate of Viana do Castelo for all months and discover the best travel time
Curious about the climate in other parts of Portugal? Check out the weather and climate in places like Algarve, Lisbon, Albufeira, or have a look at other destinations in Portugal.
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Daily Temperature in July in Viana do Castelo
This chart shows the average daily temperatures, both day and night, for each day in July in Viana do Castelo, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in July in Viana do Castelo
The chart below shows the average daily precipitation in July for Viana do Castelo, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for July, you can expect around 3 days of rain in Viana do Castelo.
Daily UV Index in July in Viana do Castelo
This chart shows the average daily UV index in July in Viana do Castelo, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in July in Viana do Castelo Over the Years
This chart shows the average temperature in July in Viana do Castelo, measured in degrees Celsius, over the past years.
Total Precipitation in July in Viana do Castelo Over the Years
This chart shows the average precipitation in July in Viana do Castelo, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in July for Viana do Castelo
Click on a specific day in July for detailed info on the typical weather on that day in Viana do Castelo. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Viana do Castelo
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Average Weather in Viana do Castelo by Month
Click on a month below to see detailed weather info for Viana do Castelo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Viana do Castelo for all months at once
