The best time to book a flight to San José with Air Canada is 9 days before departure. On average, fares are higher if you book 48 days before departure.
For Economy Class flights, the cheapest month to fly this route is November. The most expensive months are August and July.
In terms of precipitation, rainfall in San José ranges from 0.0 - 300.0 mm per month. September is typically the wettest month, when rainfall can reach 300.0 mm. February is typically the driest time to visit San José when rainfall is around 0.0 mm.
If weather is an important factor for your trip to San José, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 18.0 C).
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