Puerto Rico weather outlook for the next 7 days
From Oct 29 to Nov 4, temperatures in Puerto Rico will range from 74° to 92°. The hottest day is tomorrow (Oct 30), with a high of 92°; the coolest night is Monday, Nov 2, dipping to around 74°. Overall, daytime temperatures are expected to ease slightly towards the end of the period.
6 of the next 7 days are forecast to bring 0.04 in of rain or more: today (Oct 29) (~0.13 in), Saturday, Oct 31 (~0.30 in), Sunday, Nov 1 (~0.16 in) and Monday, Nov 2 (~0.20 in)…. The wettest day is Wednesday, Nov 4, with around 0.43 in of rain.
The windiest day is tomorrow (Oct 30), with average speeds of about 15 mph and gusts of up to 29 mph. The UV index peaks at 8.8 (very high) on Saturday, Oct 31. Average daily humidity ranges from 59% to 77%.
- Hot around midday: wear light, breathable clothing, carry water and take breaks in the shade.
- Rainy days ahead: carry an umbrella or raincoat, slow down on wet roads and never drive through flooded roads – turn around, don't drown.
- Very high UV: use sunscreen (SPF 30+), wear a wide-brimmed hat and sunglasses.
Frequently asked questions about the weather in Puerto Rico
Will it rain in Puerto Rico in the next 24 hours?
Yes. Over the next 24 hours, rain is likely in Puerto Rico around 1 PM–6 PM, with the highest chance (about 94%) at 3:00 PM. Total rainfall is forecast at around 0.13 in.
What is the weather in Puerto Rico tomorrow?
Tomorrow (Friday, Oct 30), Puerto Rico will see light rain, with temperatures from 75° to 92°, a 84% chance of rain (about 0.04 in), humidity around 62% and winds of 15 mph. Bring an umbrella or raincoat. Very high UV, wear sunscreen.
Which day will be hottest in Puerto Rico this week?
According to the forecast, tomorrow (Oct 30) will be the hottest day, with a high of about 92°. The coolest is Monday, Nov 2, with a low of about 74°.
Which day is best for going out or outdoor activities in Puerto Rico?
Tuesday, Nov 3 is the best day of the next 7: light rain, 75° to 87°, with a 70% chance of rain. Go in the morning or late afternoon to avoid the strongest sun.
Is this forecast accurate for every part of Puerto Rico?
The forecast is calculated for a representative point in Puerto Rico. In mountain and coastal areas, or during showers and thunderstorms, conditions can vary a lot from place to place. For tornadoes, hurricanes, floods and winter storms, always follow the official National Weather Service warnings.
Day by day in Puerto Rico
| Day | Weather | High / Low | Rain | Wind | Heat index / wind chill |
|---|---|---|---|---|---|
| Today |  Light rain |
92° / 78° | 94% · 0.13 in | 8 mph | 104° · Danger |
| Tomorrow | Light rain |
92° / 75° | 84% · 0.04 in | 15 mph | 106° · Danger |
| Sat, Oct 31 | Moderate rain |
87° / 75° | 100% · 0.30 in | 10 mph | 96° · Extreme caution |
| Sun, Nov 1 | Light rain |
84° / 77° | 77% · 0.16 in | 6 mph | 93° · Extreme caution |
| Mon, Nov 2 | Moderate rain |
87° / 74° | 100% · 0.20 in | 8 mph | 99° · Extreme caution |
| Tue, Nov 3 | Light rain |
87° / 75° | 70% · 0.06 in | 8 mph | 99° · Extreme caution |
| Wed, Nov 4 | Moderate rain |
87° / 78° | 100% · 0.43 in | 5 mph | 93° · Extreme caution |
About the heat index and wind chill
The heat index is how hot it really feels when humidity is combined with the air temperature. The National Weather Service uses these levels: 80–90 °F caution, 90–103 °F extreme caution, 103–124 °F danger and 125 °F or more extreme danger. At "danger" level, heat cramps and heat exhaustion are likely with prolonged activity outdoors — drink water often, rest in the shade or air conditioning and avoid strenuous work in the afternoon.
The wind chill is how cold it feels on exposed skin when wind is combined with cold air (it applies at 50 °F and below). At a wind chill of −18 °F frostbite can develop in 30 minutes, at −35 °F in 10 minutes: cover your skin, wear layers, a hat and gloves.