Weather in July
July in Viana do Castelo carries the heat of summer to its peak with an average high of 26.3°C (79.3°F). From being an extremely bright and long day in June, the day length subtly recedes in July. Balmy weather and calmer sea breezes mark a distinction from the expected weather in August. Despite bearing the peak summer heat, the temperature is bearable for most people, suggesting high levels of tourism during this month.
Note: In water with a temperature of 17.3°C (63.1°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
On the first day of July, sunrise is at 06:04 and sunset at 21:13. On the last day of the month, sunrise is at 06:29 and sunset at 20:54 WEST.
Temperature
June's transformation into July witnesses an average high-temperature of a still moderately hot 26.3°C (79.3°F), noting a minor change from the preceding month. The average nighttime temperature in Viana do Castelo lowers to a moderate 15.3°C (59.5°F) throughout July.Sea temperature
In Viana do Castelo, the average seawater temperature in July is 17.3°C (63.1°F).Note: In water with a temperature of 17.3°C (63.1°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
The average length of the day in July is 14h and 51min.On the first day of July, sunrise is at 06:04 and sunset at 21:13. On the last day of the month, sunrise is at 06:29 and sunset at 20:54 WEST.
Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are July temperatures in Viana do Castelo?
In Viana do Castelo, in July, the average high-temperature is 26.3°C (79.3°F), and the average low-temperature is 15.3°C (59.5°F).
How cold is the water in July in Viana do Castelo?
In July, the average sea temperature is 17.3°C (63.1°F). Swimming in 17.3°C (63.1°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 Viana do Castelo have in July?
The average day length in July in Viana do Castelo is 14h and 51min.
What time are sunrise and sunset in July in Viana do Castelo?
In July, on the first day of the month, sunrise is at 06:04 and sunset at 21:13. On the last day of the month, in Viana do Castelo, Portugal, sunrise is at 06:29 and sunset at 20:54 WEST.
Average temperature in July
Viana do Castelo, Portugal
- Average high temperature in July: 26.3°C
The warmest month (with the highest average high temperature) is August (26.4°C).
The month with the lowest average high temperature is January (14.6°C).
- Average low temperature in July: 15.3°C
The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).
Average sea temperature in July
Viana do Castelo, Portugal
- Average sea temperature in July: 17.3°C
The best month for swimming (with the highest average sea temperature) is September (18.3°C).
The coldest months (with the lowest average sea temperature) are February and March (13.8°C).
Average daylight in July
Viana do Castelo, Portugal
- Average daylight in July: 14h and 5min
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 12min).
Viana do Castelo, Portugal
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