Best time to visit · Puerto Rico
Best time to visit San Juan
San Juan averages 0 just-right days a year; no month is reliably just right, and February comes closest. Most other days miss by being too hot.
(70 to 80°F, dry, sunny)
(45 to 65°F, dry)
(80 to 92°F, bright)
San Juan weather by month
Bars: share of each month's days that are just right (number = days). Below: average daily high. Outlined bars are the best months.
- Just right 0
- Too cool 0
- Too hot 361
- Too muggy 4
- Too gray 0
When to visit San Juan
San Juan rarely hits the 70 to 80°F, dry and sunny window; February comes closest, with 0 just-right days. January, February, March, April, May, June, July, August, September, October, November and December are mostly too hot, with average highs of 85 to 91°F (33°C).
Climate table
| Month | Avg high | Dew point | Cloud cover | Just-right days |
|---|---|---|---|---|
| January | 85°F (29°C) | 69°F (21°C) | 24% | 0 |
| February | 85°F (29°C) | 67°F (19°C) | 26% | 0 |
| March | 86°F (30°C) | 69°F (21°C) | 28% | 0 |
| April | 87°F (31°C) | 70°F (21°C) | 31% | 0 |
| May | 89°F (32°C) | 73°F (23°C) | 52% | 0 |
| June | 91°F (33°C) | 74°F (23°C) | 54% | 0 |
| July | 91°F (33°C) | 74°F (23°C) | 51% | 0 |
| August | 91°F (33°C) | 75°F (24°C) | 52% | 0 |
| September | 91°F (33°C) | 75°F (24°C) | 60% | 0 |
| October | 91°F (33°C) | 74°F (23°C) | 51% | 0 |
| November | 88°F (31°C) | 73°F (23°C) | 39% | 0 |
| December | 86°F (30°C) | 70°F (21°C) | 30% | 0 |
How San Juan compares
San Juan gets 0 just-right days a year with our default window; the median big US city gets 33. On muggy days: 4. On gray days: 0.
Places with a similar climate
Nearby
San Juan averages 0 just-right days a year (70 to 80°F highs, dry, mostly sunny), according to Goldilocks Map: https://goldilocksmap.com/puerto-rico/san-juan/Set your own perfect weather on the map →
Numbers are expected days in a typical year from 1991 to 2020 climate normals (TerraClimate; cloud cover from CHELSA), on a grid about 35 km wide. Checked against 10 years of daily records at 28 NOAA weather stations: typical error about 10 days a year. How it works. Updated 2026-10-07.