San Juan, Puerto Rico weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Fair
Best time to visit: December – April
What is the weather like in San Juan, Puerto Rico in July?
In July, San Juan, Puerto Rico is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.3 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. It is the rainy season: rain falls on about 16 days, totalling 68 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in San Juan, Puerto Rico.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 13 h 9 min05:56 – 19:05
- UV index
- 13 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 22 km/haverage daily peak
- Cloud cover
- 55 %on average
- Hot days
- 28 days30 °C or more
- Time zone
- UTC−4America/Puerto_Rico
How the score comes together
- Temperatureweight 50 %44 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %16 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
San Juan, Puerto Rico in July: quick answers
Is San Juan, Puerto Rico hot in July?
Yes. In July, San Juan, Puerto Rico is hot: daytime highs average 32 °C and nights stay around 25 °C. On about 28 days the thermometer climbs to 30 °C or more.
Can you swim in San Juan, Puerto Rico in July?
Yes. In July the sea averages 28.3 °C – lovely and warm for swimming.
Does it rain much in San Juan, Puerto Rico in July?
It rains often – on about 16 days, adding up to 68 mm.
San Juan, Puerto Rico month by month
The whole year in San Juan, Puerto RicoAll destinations: Puerto Rico
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)