When is the best time to go to Viana do Castelo
The chart above shows the best time of year to visit Viana do Castelo, Portugal. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Viana do Castelo
Viana do Castelo weather by month
Please note our recommendations for when to visit Viana do Castelo are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 11°C | 232mm | 4.1hrs | 10.6hrs | 14°C |
The weather in January in Viana do Castelo is characteristically cool and very wet.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
January is in the winter in Viana do Castelo and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (41°F) is normal.
On average January is the driest month of the year in Viana do Castelo with around 232mm 9.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
Viana do Castelo weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 12°C | 218mm | 4.4hrs | 11.6hrs | 14°C |
February in Viana do Castelo is generally very wet with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Viana do Castelo and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 6°C (42°F) is normal.
On average February is the 2nd driest month of the year in Viana do Castelo with around 218mm 8.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.4 hours of sunshine per day.
Viana do Castelo weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 14°C | 154mm | 6hrs | 12.8hrs | 14°C |
The weather in March in Viana do Castelo is characteristically mild and wet.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
March is in the spring in Viana do Castelo and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 6°C (43°F) is normal.
On average March is the 3rd driest month of the year in Viana do Castelo with around 154mm 6.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
Viana do Castelo weather in March »
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 15°C | 132mm | 7hrs | 14.3hrs | 14°C |
Viana do Castelo's weather in April is typically mild and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often not a good and not conducive to spending time outdoors.
April is in the spring in Viana do Castelo and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 8°C (46°F) is normal.
On average April is the 4th driest month of the year in Viana do Castelo with around 132mm 5.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
Viana do Castelo weather in April »
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 17°C | 114mm | 8.2hrs | 15.5hrs | 15°C |
May is a damp month in Viana do Castelo and the temperature is generally mild.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
May is in the spring in Viana do Castelo and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 10°C (50°F) is normal.
On average May is the 5th driest month of the year in Viana do Castelo with around 114mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
Viana do Castelo weather in May »
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 20°C | 66mm | 9.5hrs | 10.6hrs | 17°C |
The climate in Viana do Castelo during June can be summarized as mild and reasonably dry.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Viana do Castelo.
June is in the summer in Viana do Castelo and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 13°C (55°F) is normal.
On average June is the 6th driest month of the year in Viana do Castelo with around 66mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.5 hours of sunshine per day.
Viana do Castelo weather in June »
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 29mm | 10.4hrs | 11.6hrs | 18°C |
July in Viana do Castelo is generally dry with the temperature being warm.
It is perhaps the perfect month to visit Viana do Castelo, with some surprisingly good weather at this time of year.
July is in the summer in Viana do Castelo and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 14°C (58°F) is normal.
On average July is the 6th wettest month of the year in Viana do Castelo with around 29mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
Viana do Castelo weather in July »
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 27mm | 10hrs | 12.8hrs | 19°C |
The weather in August in Viana do Castelo is characteristically warm and dry.
It is perhaps the perfect month to visit Viana do Castelo, with some extremely good weather at this time of year.
August is in the summer in Viana do Castelo and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 14°C (57°F) is normal.
On average August is the 5th wettest month of the year in Viana do Castelo with around 27mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 10 hours of sunshine per day.
Viana do Castelo weather in August »
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 21°C | 89mm | 7.8hrs | 14.3hrs | 19°C |
Viana do Castelo's weather in September is typically warm and a little damp in nature.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Viana do Castelo.
September is in the fall / autumn in Viana do Castelo and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 13°C (56°F) is normal.
On average September is the 4th wettest month of the year in Viana do Castelo with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
Viana do Castelo weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 18°C | 170mm | 6hrs | 15.5hrs | 18°C |
October is a wet month in Viana do Castelo and the temperature is generally mild.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
October is in the fall / autumn in Viana do Castelo and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 11°C (52°F) is normal.
On average October is the 3rd wettest month of the year in Viana do Castelo with around 170mm 6.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
Viana do Castelo weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 14°C | 175mm | 4.7hrs | 10.6hrs | 16°C |
Mild and wet weather often prevails in Viana do Castelo during the month of November
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often not a good and not conducive to spending time outdoors.
November is in the fall / autumn in Viana do Castelo and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 7°C (45°F) is normal.
On average November is the 2nd wettest month of the year in Viana do Castelo with around 175mm 6.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.7 hours of sunshine per day.
Viana do Castelo weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 11°C | 223mm | 4hrs | 11.6hrs | 15°C |
December in Viana do Castelo is generally very wet with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Viana do Castelo for your holidays. The weather is often not a good and not conducive to spending time outdoors.
December is in the winter in Viana do Castelo and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 6°C (42°F) is normal.
On average December is the wettest month of the year in Viana do Castelo with around 223mm 8.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4 hours of sunshine per day.
Other monthly averages
Viana do Castelo weather stats
| Hottest month: | July | 24.1°C 75.4°F |
|---|---|---|
| Driest month: | August | 27mm 1.1ins |
| Sunniest month: | August | 10hrs |
| Coldest month: | January | 12.2°C 54°F |
| Wettest month: | January | 232mm 9.1ins |
| Warmest sea: | August | 18.9°C 66°F |
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