When to go · Viana do Castelo
Viana do Castelo, month by month
The best months for Viana do Castelo: May, Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Nov, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Nov–Feb (wet and windy); mid-August if you want quiet (Agonia festival crowds).14 °C (57 °F) / 7 °C (45 °F), 14 rain days57 °F (14 °C) / 45 °F (7 °C), 14 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Nov–Feb (wet and windy); mid-August if you want quiet (Agonia festival crowds).15 °C (59 °F) / 7 °C (45 °F), 13 rain days59 °F (15 °C) / 45 °F (7 °C), 13 rain daysCrowds: Low
- MarchGoodOutside the best window (May–Sep). Across Portugal: Warming up; good for cities and walking the Alentejo.17 °C (63 °F) / 8 °C (46 °F), 12 rain days63 °F (17 °C) / 46 °F (8 °C), 12 rain daysCrowds: Medium
- AprilGoodOutside the best window (May–Sep). Across Portugal: Easter and 25 April (Freedom Day) bring domestic crowds; wildflowers in the south.18 °C (64 °F) / 9 °C (48 °F), 12 rain days64 °F (18 °C) / 48 °F (9 °C), 12 rain daysCrowds: Medium
- MayGreatInside Viana do Castelo's best window: May–Sep.20 °C (68 °F) / 11 °C (52 °F), 10 rain days68 °F (20 °C) / 52 °F (11 °C), 10 rain daysCrowds: Medium
- JuneGreatInside Viana do Castelo's best window: May–Sep.24 °C (75 °F) / 14 °C (57 °F), 6 rain days75 °F (24 °C) / 57 °F (14 °C), 6 rain daysCrowds: High · 1 festival or holiday
- JulyGreatInside Viana do Castelo's best window: May–Sep.26 °C (79 °F) / 16 °C (61 °F), 4 rain days79 °F (26 °C) / 61 °F (16 °C), 4 rain daysCrowds: High
- AugustGreatInside Viana do Castelo's best window: May–Sep.26 °C (79 °F) / 16 °C (61 °F), 4 rain days79 °F (26 °C) / 61 °F (16 °C), 4 rain daysCrowds: High
- SeptemberGreatInside Viana do Castelo's best window: May–Sep.25 °C (77 °F) / 15 °C (59 °F), 7 rain days77 °F (25 °C) / 59 °F (15 °C), 7 rain daysCrowds: Medium
- OctoberGoodOutside the best window (May–Sep). Across Portugal: Good city weather; first autumn storms in the north. Big-wave season starts in Nazaré.21 °C (70 °F) / 13 °C (55 °F), 12 rain days70 °F (21 °C) / 55 °F (13 °C), 12 rain daysCrowds: Medium
- NovemberAvoidListed as a month to avoid: Nov–Feb (wet and windy); mid-August if you want quiet (Agonia festival crowds).17 °C (63 °F) / 10 °C (50 °F), 13 rain days63 °F (17 °C) / 50 °F (10 °C), 13 rain daysCrowds: Low
- DecemberAvoidListed as a month to avoid: Nov–Feb (wet and windy); mid-August if you want quiet (Agonia festival crowds).15 °C (59 °F) / 8 °C (46 °F), 14 rain days59 °F (15 °C) / 46 °F (8 °C), 14 rain daysCrowds: Medium
Compare two months
Weather, crowds and prices for any two months in Viana do Castelo, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 20 °C (68 °F)68 °F (20 °C)
Jun: 24 °C (75 °F)75 °F (24 °C)
Night low
May: 11 °C (52 °F)52 °F (11 °C)
Jun: 14 °C (57 °F)57 °F (14 °C)
Rain days
May: 10
Jun: 6 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 0
Jun: 1
May: Inside Viana do Castelo's best window: May–Sep.
June: Inside Viana do Castelo's best window: May–Sep.
Viana do Castelo: figures are long-term averages from this guide, not a forecast.