Bay
San Diego Bay
California · United States · Pacific Ocean
32.6501, -117.1342 · National City, 4 km
- 21°Sea · August
- 29°High · August
- 13.4 hSunshine · June
Your month at the beach
San Diego Bay in January
- 17°CAir, daytime high8°C at night
- 15°CSea temperature
- 7.7 hSunshine a day
- 6 daysRainy days in the month41 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 Diego Bay in February
- 17°CAir, daytime high8°C at night
- 15°CSea temperature
- 8.1 hSunshine a day
- 8 daysRainy days in the month55 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 Diego Bay in March
- 19°CAir, daytime high9°C at night
- 15°CSea temperature
- 9.8 hSunshine a day
- 6 daysRainy days in the month29 mm in total
- 11 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in April
- 20°CAir, daytime high10°C at night
- 16°CSea temperature
- 11.2 hSunshine a day
- 3 daysRainy days in the month17 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 Diego Bay in May
- 22°CAir, daytime high11°C at night
- 17°CSea temperature
- 12.1 hSunshine a day
- 1 dayRainy days in the month7 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 Diego Bay in June
- 25°CAir, daytime high13°C at night
- 19°CSea temperature
- 13.4 hSunshine a day
- 1 dayRainy days in the month14 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in July
- 29°CAir, daytime high16°C at night
- 20°CSea temperature
- 12.1 hSunshine a day
- 1 dayRainy days in the month4 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in August
- 29°CAir, daytime high17°C at night
- 21°CSea temperature
- 11.8 hSunshine a day
- 1 dayRainy days in the month4 mm in total
- 9 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in September
- 28°CAir, daytime high16°C at night
- 21°CSea temperature
- 10.9 hSunshine a day
- 1 dayRainy days in the month6 mm in total
- 9 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in October
- 24°CAir, daytime high14°C at night
- 19°CSea temperature
- 9.7 hSunshine a day
- 2 daysRainy days in the month15 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in November
- 20°CAir, daytime high11°C at night
- 18°CSea temperature
- 8.3 hSunshine a day
- 4 daysRainy days in the month25 mm in total
- 11 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
San Diego Bay in December
- 17°CAir, daytime high8°C at night
- 16°CSea temperature
- 7.3 hSunshine a day
- 5 daysRainy days in the month51 mm in total
- 13 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 28Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 11 kmAirport: San Diego International Airport (SAN)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 13.6 °C — 1.7 °C below the 1991–2020 average.
1991–2020 average: 15.3 °C
1991–2020 average: 17.0 °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 14.2 °C — 0.9 °C below the 1991–2020 average.
1991–2020 average: 15.1 °C
1991–2020 average: 17.1 °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 14.4 °C — 1.1 °C below the 1991–2020 average.
1991–2020 average: 15.5 °C
1991–2020 average: 18.9 °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 15.4 °C — 0.7 °C below the 1991–2020 average.
1991–2020 average: 16.1 °C
1991–2020 average: 20.0 °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 17.3 °C — about the same as the 1991–2020 average.
1991–2020 average: 17.4 °C
1991–2020 average: 22.2 °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 18.4 °C — about the same as the 1991–2020 average.
1991–2020 average: 18.6 °C
1991–2020 average: 25.3 °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 19.8 °C — 0.4 °C below the 1991–2020 average.
1991–2020 average: 20.2 °C
1991–2020 average: 28.8 °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 20.9 °C — about the same as the 1991–2020 average.
1991–2020 average: 21.0 °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.
September from 2020 to 2025
In September 2025 the sea averaged 20.2 °C — 0.3 °C below the 1991–2020 average.
1991–2020 average: 20.5 °C
1991–2020 average: 28.4 °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 18.6 °C — 0.7 °C below the 1991–2020 average.
1991–2020 average: 19.3 °C
1991–2020 average: 24.4 °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 17.7 °C — about the same as the 1991–2020 average.
1991–2020 average: 17.5 °C
1991–2020 average: 20.5 °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 17.3 °C — 1.3 °C above the 1991–2020 average.
1991–2020 average: 16.0 °C
1991–2020 average: 16.6 °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
- Jan15°8 h41 mm
- Feb15°8 h55 mm
- Mar15°10 h29 mm
- Apr16°11 h17 mm
- May17°12 h7 mm
- Jun19°13 h14 mm
- Jul20°12 h4 mm
- Aug21°12 h4 mm
- Sep21°11 h6 mm
- Oct19°10 h15 mm
- Nov18°8 h25 mm
- Dec16°7 h51 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 Diego Bay: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 17 | 8 | 15 | 41 | 6 | 7.7 | 12 |
| February | 17 | 8 | 15 | 55 | 8 | 8.1 | 12 |
| March | 19 | 9 | 15 | 29 | 6 | 9.8 | 11 |
| April | 20 | 10 | 16 | 17 | 3 | 11.2 | 12 |
| May | 22 | 11 | 17 | 7 | 1 | 12.1 | 12 |
| June | 25 | 13 | 19 | 14 | 1 | 13.4 | 10 |
| July | 29 | 16 | 20 | 4 | 1 | 12.1 | 10 |
| Augustwarmest sea | 29 | 17 | 21 | 4 | 1 | 11.8 | 9 |
| September | 28 | 16 | 21 | 6 | 1 | 10.9 | 9 |
| October | 24 | 14 | 19 | 15 | 2 | 9.7 | 10 |
| November | 20 | 11 | 18 | 25 | 4 | 8.3 | 11 |
| December | 17 | 8 | 16 | 51 | 5 | 7.3 | 13 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
Nearby destinations
About 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 | 30 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 3 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 30 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 |
More about this place: Wikipedia See every data source →