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When to go · Viana do Castelo

Viana do Castelo in August

Great month. Inside Viana do Castelo's best window: May–Sep.

Key facts

Verdict
Great
Temperature
26°C (79°F) / 16°C (61°F)
average high / low
Rain days
4
Crowds
High
Portugal overall
Prices
High
Portugal overall

Verdict

GreatBest and avoid months for Viana do Castelo

Inside Viana do Castelo's best window: May–Sep.

Is another month better than August?

No other month rates higher than August for Viana do Castelo in this guide.

Weather in August

Long-term averages
  • Viana do CasteloHighs around 26 °C (79 °F), lows around 16 °C (61 °F), rain on about 4 days

Crowds and prices

Crowds · Portugal overall
High
Prices · Portugal overall
High

Portugal overall: Portuguese and European holidays: Algarve beaches packed, prices at their highest; Lisbon still hot and busy.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Viana do Castelo, side by side.

  • Verdict

    Aug: Great

    May: Great

  • Daytime high

    Aug: 26 °C (79 °F)

    May: 20 °C (68 °F)

  • Night low

    Aug: 16 °C (61 °F)

    May: 11 °C (52 °F)

  • Rain days

    Aug: 4 (better)

    May: 10

  • Crowds

    Aug: High

    May: Medium

  • Prices

    Aug: High

    May: Medium

  • Festivals listed

    Aug: 0

    May: 0

August: Inside Viana do Castelo's best window: May–Sep.

May: Inside Viana do Castelo's best window: May–Sep.

Viana do Castelo: figures are long-term averages from this guide, not a forecast.

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Across Portugal in August →