Beach
San Juan
Quintana Roo · Mexico · Caribbean Sea
20.5220, -86.9438 · Cozumel, 2 km
- 29°Sea · September
- 30°High · August
- 9.3 hSunshine · April
Your month at the beach
San Juan in January
- 26°CAir, daytime high23°C at night
- 27°CSea temperature
- 6.5 hSunshine a day
- 12 daysRainy days in the month61 mm in total
- 16 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in February
- 27°CAir, daytime high24°C at night
- 27°CSea temperature
- 7.7 hSunshine a day
- 8 daysRainy days in the month47 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in March
- 27°CAir, daytime high24°C at night
- 27°CSea temperature
- 8.7 hSunshine a day
- 7 daysRainy days in the month42 mm in total
- 16 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in April
- 28°CAir, daytime high25°C at night
- 27°CSea temperature
- 9.3 hSunshine a day
- 7 daysRainy days in the month42 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in May
- 29°CAir, daytime high26°C at night
- 28°CSea temperature
- 8.8 hSunshine a day
- 12 daysRainy days in the month100 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in June
- 29°CAir, daytime high27°C at night
- 29°CSea temperature
- 7.5 hSunshine a day
- 19 daysRainy days in the month177 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in July
- 29°CAir, daytime high27°C at night
- 29°CSea temperature
- 8.9 hSunshine a day
- 20 daysRainy days in the month96 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in August
- 30°CAir, daytime high28°C at night
- 29°CSea temperature
- 8.8 hSunshine a day
- 23 daysRainy days in the month125 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in September
- 30°CAir, daytime high27°C at night
- 29°CSea temperature
- 7.6 hSunshine a day
- 25 daysRainy days in the month170 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in October
- 29°CAir, daytime high26°C at night
- 29°CSea temperature
- 6.6 hSunshine a day
- 22 daysRainy days in the month224 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in November
- 27°CAir, daytime high25°C at night
- 28°CSea temperature
- 6.6 hSunshine a day
- 14 daysRainy days in the month129 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Juan in December
- 27°CAir, daytime high24°C at night
- 27°CSea temperature
- 6.6 hSunshine a day
- 12 daysRainy days in the month69 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 49Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 2 kmAirport: Cozumel International Airport (CZM)In a straight line; by road it is further
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
January from 2020 to 2025
In January 2025 the sea averaged 27.1 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 26.7 °C
1991–2020 average: 26.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
February from 2020 to 2025
In February 2025 the sea averaged 27.1 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 26.5 °C
1991–2020 average: 26.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
March from 2020 to 2025
In March 2025 the sea averaged 27.6 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 26.6 °C
1991–2020 average: 27.2 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
April from 2020 to 2025
In April 2025 the sea averaged 27.5 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 27.1 °C
1991–2020 average: 28.2 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
May from 2020 to 2025
In May 2025 the sea averaged 28.5 °C — 0.5 °C above the 1991–2020 average.
1991–2020 average: 28.0 °C
1991–2020 average: 29.0 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
June from 2020 to 2025
In June 2025 the sea averaged 29.3 °C — 0.7 °C above the 1991–2020 average.
1991–2020 average: 28.6 °C
1991–2020 average: 29.0 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
July from 2020 to 2025
In July 2025 the sea averaged 29.3 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 28.9 °C
1991–2020 average: 29.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
August from 2020 to 2025
In August 2025 the sea averaged 29.9 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 29.2 °C
1991–2020 average: 29.8 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
September from 2020 to 2025
In September 2025 the sea averaged 30.0 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 29.4 °C
1991–2020 average: 29.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
October from 2020 to 2025
In October 2025 the sea averaged 30.0 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 29.0 °C
1991–2020 average: 28.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
November from 2020 to 2025
In November 2025 the sea averaged 29.1 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 28.1 °C
1991–2020 average: 27.3 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
December from 2020 to 2025
In December 2025 the sea averaged 28.4 °C — 1.1 °C above the 1991–2020 average.
1991–2020 average: 27.3 °C
1991–2020 average: 26.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
When to go
1991–2020 averagesThe year at a glance
- Jan27°6 h61 mm
- Feb27°8 h47 mm
- Mar27°9 h42 mm
- Apr27°9 h42 mm
- May28°9 h100 mm
- Jun29°8 h177 mm
- Jul29°9 h96 mm
- Aug29°9 h125 mm
- Sep29°8 h170 mm
- Oct29°7 h224 mm
- Nov28°7 h129 mm
- Dec27°7 h69 mm
Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.
Sea temperature
1991–2020 averagesClimate through the year
1991–2020 averagesRain
Sunshine
Sunshine hours are estimated from measured solar radiation, not observed directly.
Month by month
1991–2020 averagesEvery month at San Juan: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 26 | 23 | 27 | 61 | 12 | 6.5 | 16 |
| February | 27 | 24 | 27 | 47 | 8 | 7.7 | 15 |
| March | 27 | 24 | 27 | 42 | 7 | 8.7 | 16 |
| April | 28 | 25 | 27 | 42 | 7 | 9.3 | 15 |
| May | 29 | 26 | 28 | 100 | 12 | 8.8 | 14 |
| June | 29 | 27 | 29 | 177 | 19 | 7.5 | 14 |
| July | 29 | 27 | 29 | 96 | 20 | 8.9 | 12 |
| August | 30 | 28 | 29 | 125 | 23 | 8.8 | 12 |
| Septemberwarmest sea | 30 | 27 | 29 | 170 | 25 | 7.6 | 12 |
| October | 29 | 26 | 29 | 224 | 22 | 6.6 | 14 |
| November | 27 | 25 | 28 | 129 | 14 | 6.6 | 15 |
| December | 27 | 24 | 27 | 69 | 12 | 6.6 | 15 |
Swipe sideways to see the other columns.
Nearby destinations
Playa del CarmenPlaya del Carmen, Quintana Roo · 17 km29°Sea30°AirPlaya ParaísoPlaya del Carmen · 18 km29°Sea30°AirPlaya San FranciscoCozumel · 16 km29°Sea30°AirPlaya Ojo de AguaAlfredo V. Bonfil · 40 km29°Sea30°AirCaleta ChakalálPuerto Aventuras · 30 km29°Sea32°AirPlaya Los CoquitosQuintana Roo · 34 km29°Sea30°AirAbout these numbers
Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.
| What | Where it comes from | Nearest measurement |
|---|---|---|
| Air, rain and sunshine | NASA POWER | 8 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 14 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 8 km away |
| Lifeguards and places to stay | OpenStreetMap | within 1–5 km |
| Nearest airport | OurAirports | straight-line distance |
| Image at the top | Sentinel-2 cloudless (EOX) | at this spot |