San Juan, Puerto Rico
tropical climate · beach · medium crowds · mid prices
🏊 Swimmable sea this month (≥22°C)
Set at a tropical latitude, San Juan (Puerto Rico) is best understood through its weather data: our 2015–2024 climate record puts its peak at a 95/100 sun score in January, exactly the kind of reliability you want for a beach trip.
June is the heat peak, averaging 31°C highs; January is the cool end, when nights dip to around 22°C. Rain is most likely in September, when about 73% of days see meaningful rainfall, and least likely in January (45%). The genuinely warm window — average highs of 24°C or better — covers January–December.
Season by season (on the northern calendar), spring brings 30°C highs with 55% rain-day odds, summer 31°C at 60%, autumn 30°C at 69%, and winter 28°C at 51%. Spring wins on the numbers and autumn loses them; everything in between is a trade-off between warmth and crowds. If your dates are flexible, January buys you 28°C warmth at the quiet end of the season.
Best months to visit San Juan
The best month on record is January — a 95/100 sun score, built on 41% cloud cover and 45% rain-day odds — followed by May and July. The dependable window is wider than the podium, though: January–December all score 70 or better. The month to avoid on pure weather odds is November (86/100).
Among the tropical destinations in our catalog, its January rain odds beat 41% of the field.
Month-by-month breakdown for San Juan → · More destinations for January →
Right now the 15-day outlook shows 5 mostly-clear days (under 40% cloud) and 3 with real rain risk, with temperatures between 24°C and 31°C — which is how San Juan earns its current 89/100 sun score.
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Flights from Europe
| From | Distance | Estimated non-stop time | |
|---|---|---|---|
| Brussels (BRU) | 7,062 km | ~9 h 15 | Find flights → |
| Amsterdam (AMS) | 7,110 km | ~9 h 30 | Find flights → |
| London (LON) | 6,758 km | ~9 h | Find flights → |
| Paris (PAR) | 6,907 km | ~9 h 15 | Find flights → |
| Frankfurt (FRA) | 7,367 km | ~9 h 45 | Find flights → |
Estimates from distance; actual schedules may require a connection.
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Next 16 days
Live forecast, refreshed twice daily. Forecasts updated 29 Oct, 06:36 CET.
| Date | High / low | Cloud | Rain odds |
|---|---|---|---|
| Thu 29 Oct | 31° / 26° | 27% | 21% |
| Fri 30 Oct | 30° / 25° | 15% | 17% |
| Sat 31 Oct | 29° / 25° | 56% | 37% |
| Sun 1 Nov | 29° / 25° | 87% | 50% |
| Mon 2 Nov | 29° / 24° | 77% | 37% |
| Tue 3 Nov | 31° / 25° | 75% | 33% |
| Wed 4 Nov | 30° / 24° | 89% | 48% |
| Thu 5 Nov | 29° / 24° | 94% | 51% |
| Fri 6 Nov | 29° / 25° | 76% | 37% |
| Sat 7 Nov | 29° / 25° | 12% | 29% |
| Sun 8 Nov | 29° / 25° | 41% | 32% |
| Mon 9 Nov | 29° / 25° | 42% | 30% |
| Tue 10 Nov | 29° / 25° | 16% | 32% |
| Wed 11 Nov | 30° / 25° | 3% | 24% |
| Thu 12 Nov | 30° / 24° | 48% | 28% |
San Juan climate, month by month
2015–2024 averages (January highlighted as the best month).
| Month | Day / night °C | Cloud | Rain-day odds | Sun score |
|---|---|---|---|---|
| January | 28° / 22° | 40.9% | 44.5% | 95 |
| February | 28° / 22° | 37.1% | 53.4% | 93 |
| March | 28.6° / 22.1° | 39.5% | 51.4% | 93 |
| April | 29.3° / 22.7° | 49.3% | 57.7% | 93 |
| May | 30.6° / 23.9° | 59.6% | 55.2% | 95 |
| June | 31.3° / 24.8° | 60.9% | 51.7% | 94 |
| July | 30.9° / 25.2° | 55.8% | 65.5% | 95 |
| August | 31° / 25.2° | 53.2% | 61.3% | 92 |
| September | 30.8° / 24.9° | 64.4% | 73.3% | 86 |
| October | 30.3° / 24.4° | 62% | 69.7% | 87 |
| November | 29.2° / 23.6° | 54% | 65% | 86 |
| December | 28.3° / 22.8° | 39.2% | 55.8% | 95 |
Similar sunny destinations
tropical escapes with a sun score within ±10 of San Juan right now.