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When is the Best Time to Explore San Juan?

If you're curious when is the best time of year to visit San Juan, you may find this information about seasonal weather helpful when planning your trip. The warmest months in San Juan are typically May and April, whereas the coldest months are usually January and February. The months with the most rain are August and July, whereas March and February have the least.

Here's a rundown on how much rain you can expect and what the temperatures are going to be like:

• From January to March, the average daytime temperature is 30°C and at night it is 21°C. Seasonal average rainfall is 50 mm.
• If you visit between April and June, you can expect an average temp of 31°C during the day and 24°C at night. Average rainfall during this season is 685 mm.
• The daytime average temp from July to September is 29°C and the night-time average is 24°C. Average precipitation for this season is 1797 mm.
• Between October and December, the average temp during the day is 29°C and 22°C at night. Seasonal average rain is 379 mm.
• The average annual rainfall in San Juan is 2910 mm.