Climate
Imperial Beach weather by month
Average highs, lows, rain and snow for every month, from 30 years of weather records.
Average temperatures
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Best time to visit: May, June, August, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 67°F | 47°F | 1.7 in | – |
| February | 65°F | 48°F | 2.1 in | – |
| March | 66°F | 51°F | 1.9 in | – |
| April | 67°F | 53°F | 0.60 in | – |
| May | 68°F | 57°F | 0.10 in | – |
| June | 70°F | 60°F | 0.10 in | – |
| July | 73°F | 64°F | 0.30 in | – |
| August | 75°F | 65°F | 0.00 in | – |
| September | 75°F | 62°F | 0.10 in | – |
| October | 73°F | 56°F | 0.40 in | – |
| November | 70°F | 50°F | 0.80 in | – |
| December | 66°F | 46°F | 0.50 in | – |
NOAA U.S. Climate Normals 1991–2020, Imperial Beach Ream Fld Nas, Ca Us (1.2 mi away, 24 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in Imperial Beach?
August, with an average high of 75°F and low of 65°F.
What is the coldest month in Imperial Beach?
December, with an average low of 46°F and high of 66°F.
When does it rain most in Imperial Beach?
February is the wettest month, averaging 2.1 in of precipitation; the year totals about 8.6 inches.
What is the best time to visit Imperial Beach?
For mild weather (highs between 65°F and 85°F) with the least rain, May, June, August.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Imperial Beach Ream Fld Nas weather station, 1.2 miles from downtown: 30-year averages, not a forecast.