Ideal weather days in San Juan
The best time to visit San Juan for warm, dry weather is March, with about 16 such days a month.
How many days here suit you?
Set your ideal day. Each day measured at San Juan's weather station in 2023–2025 is checked against it.
They're most common in March.
This station doesn't record cloud cover, so the sky setting is left out here.
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Your ideal days in San Juan, month by month
Why the other days don't count
- Too wet191
- Too hot80
- Too windy33
- Too cold0
A day can fail more than one test.
Warm and dry, beach and mild days
With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), San Juan averaged 104 days a year in 2023–2025. Every number here is counted from real measured days in Puerto Rico, not from climate averages.
Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in March (up to 11 a month, 80 a year). Mild, still days (16–26 °C, light wind) are rare: no month averaged more than 0.
What spoils the other days
Most of the days that don't count are wet (more than 1 mm of rain): 191 a year, mostly all year round. Another 80 are too hot (over 33 °C), mostly in June and August to October. A day can fail more than one test.
San Juan weather, month by month
| Month | Typical high | Rain days | Windy days | Clear days | Warm & dry days |
|---|---|---|---|---|---|
| January | 30 °C 85 °F | 20 | 4 | 0 | 12 of 31 |
| February | 30 °C 85 °F | 20 | 6 | 0 | 9 of 28 |
| March | 30 °C 86 °F | 15 | 3 | 1 | 16 of 31 |
| April | 30 °C 86 °F | 20 | 4 | 0 | 11 of 30 |
| May | 32 °C 89 °F | 16 | 1 | 0 | 8 of 31 |
| June | 33 °C 91 °F | 15 | 4 | 0 | 4 of 30 |
| July | 32 °C 90 °F | 19 | 5 | 0 | 7 of 31 |
| August | 33 °C 91 °F | 19 | 3 | 0 | 6 of 31 |
| September | 34 °C 92 °F | 17 | 0 | 0 | 6 of 30 |
| October | 34 °C 92 °F | 15 | 0 | 1 | 4 of 31 |
| November | 32 °C 89 °F | 20 | 0 | 0 | 10 of 30 |
| December | 30 °C 86 °F | 23 | 3 | 0 | 10 of 31 |
| Year | 219 | 33 | 3 | 104 of 365 |
Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.
Year by year
- 2023 125 warm, dry days
- 2024 99 warm, dry days
- 2025 incomplete (8 of 12 months)
Questions
When is the best time to visit San Juan for good weather?
The best time to visit San Juan for warm, dry weather is March, with about 16 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in March (up to 11 a month, 80 a year). Counted from measured days at San Juan L M Marin International Airport station, 2023–2025.
Does it rain a lot in San Juan?
On average 219 days a year had 1 mm of rain or more in 2023–2025. The wettest month was December (23 rain days), the driest October (15).
How many sunny days does San Juan get a year?
About 3 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in October (1).
How warm does San Juan get?
The median daily high ranged from 30 °C (85 °F) in January to 34 °C (92 °F) in September.
Nearby
- Kingston1130 km, Jamaica151 days
- Miami1660 km, United States181 days
- Orlando1920 km, United States203 days
- Tampa1980 km, United States194 days
Weather in other cities and countries
Open San Juan on the map Set your own temperature, rain and wind limits.
Source: San Juan L M Marin International Airport weather station (78526011641), 11 km from the centre of San Juan, 3 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 88% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.