National City, San Diego Bay, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Jul 21 		Partly Cloudy
Close Hourly 		-º / 72º 21% NW 10 mph 66%
7pm Mostly Sunny 80º 1% WNW 10 mph 47%
8pm Mostly Clear 78º 1% NW 9 mph 53%
9pm Mostly Clear 76º 1% NW 8 mph 58%
10pm Mostly Clear 74º 1% NW 7 mph 65%
11pm Mostly Clear 74º 2% NW 6 mph 67%
Wed
Jul 22 		AM Clouds/PM Sun
View Hourly 		80º / 69º 19% WNW 13 mph 70%
12am Partly Cloudy 74º 2% NW 6 mph 70%
1am Partly Cloudy 74º 2% NW 5 mph 73%
2am Mostly Cloudy 73º 5% NW 5 mph 74%
3am Mostly Cloudy 73º 6% NW 5 mph 77%
4am Cloudy 73º 20% NW 5 mph 82%
5am Cloudy 73º 21% NW 6 mph 83%
6am Cloudy 73º 21% NW 6 mph 83%
7am Cloudy 73º 20% NW 6 mph 84%
8am Cloudy 74º 19% NW 6 mph 82%
9am Mostly Cloudy 75º 5% NW 7 mph 78%
10am Partly Cloudy 77º 4% WNW 9 mph 73%
11am Partly Cloudy 79º 2% WNW 10 mph 70%
12pm Partly Cloudy 80º 2% WNW 12 mph 68%
1pm Partly Cloudy 80º 1% WNW 13 mph 66%
2pm Mostly Sunny 80º 1% WNW 13 mph 65%
3pm Partly Cloudy 80º 1% WNW 13 mph 64%
4pm Partly Cloudy 79º 1% WNW 13 mph 64%
5pm Partly Cloudy 79º 1% WNW 12 mph 65%
6pm Partly Cloudy 78º 1% WNW 11 mph 66%
7pm Partly Cloudy 76º 2% WNW 10 mph 70%
8pm Partly Cloudy 74º 4% WNW 9 mph 76%
9pm Partly Cloudy 72º 18% WNW 7 mph 80%
10pm Partly Cloudy 72º 19% WNW 6 mph 83%
11pm Mostly Cloudy 71º 20% WNW 5 mph 85%
Thu
Jul 23 		Partly Cloudy
View Hourly 		81º / 70º 10% W 10 mph 69%
12am Mostly Cloudy 71º 20% WNW 4 mph 86%
1am Mostly Cloudy 70º 20% WNW 4 mph 87%
2am Mostly Cloudy 70º 21% WNW 3 mph 87%
3am Mostly Cloudy 70º 23% WNW 3 mph 87%
4am Cloudy 70º 23% WNW 3 mph 87%
5am Mostly Cloudy 70º 15% WNW 3 mph 87%
6am Foggy 70º 22% WNW 3 mph 87%
7am Mostly Cloudy 70º 10% WNW 3 mph 86%
8am Mostly Cloudy 71º 6% WNW 3 mph 82%
9am Partly Cloudy 74º 5% WNW 4 mph 77%
10am Partly Cloudy 76º 4% W 6 mph 70%
11am Mostly Sunny 78º 2% W 8 mph 68%
12pm Mostly Sunny 79º 2% W 9 mph 66%
1pm Sunny 80º 4% W 10 mph 63%
2pm Mostly Sunny 80º 6% W 10 mph 62%
3pm Sunny 80º 1% W 10 mph 64%
4pm Sunny 80º 5% W 10 mph 63%
5pm Sunny 79º 2% W 9 mph 65%
6pm Sunny 78º 2% W 9 mph 67%
Fri
Jul 24 		Mostly Sunny 81º / 69º 6% WSW 9 mph 69%
Sat
Jul 25 		Mostly Sunny 81º / 69º 5% WSW 9 mph 69%
Sun
Jul 26 		Partly Cloudy 80º / 70º 5% WSW 10 mph 70%
Mon
Jul 27 		Partly Cloudy 80º / 69º 8% WSW 9 mph 69%
Tue
Jul 28 		Partly Cloudy 80º / 69º 4% SW 10 mph 69%

Weather Radar for National City, San Diego Bay, CA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for National City, San Diego Bay, CA

Tonight
Low : 71ºF
NW wind 5 to 10 kt. Partly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Wednesday
High : 75ºF
WNW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Wednesday Night
Low : 69ºF
NW wind 5 to 10 kt, with gusts as high as 20 kt. Partly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Thursday
High : 74ºF
W wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Thursday Night
Low : 70ºF
WNW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Friday
High : 73ºF
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Friday Night
Low : 69ºF
Variable winds 5 kt or less. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Saturday
High : 74ºF
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Saturday Night
Low : 69ºF
Variable winds 5 kt or less. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.

NOAA Buoy Data Near National City, San Diego Bay, CA See Map

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    Wind Speed Forecast for National City, San Diego Bay, CA

    WednesdayThursday
    Wind Speed (MPH) 10656101310533810
    2am6am10am2pm6pm10pm2am6am10am2pm6pm10pm
    MPH 10656101310533810
    DIR WNWNWNWNWWNWWNWWNWWNWWNWWNWWW

    Current Weather Conditions In National City, San Diego Bay, CA

    As Of: 12 minutes ago

    • 80ºF
    • 81ºF
    • 10mph
    • 0º (WNW)
    • 17mph
    • Mostly Sunny
    • 10mi
    • 29.95"
    • 47%
    • 0ºF

    The weather right now in National City, San Diego Bay, CA is Mostly Sunny. The current temperature is 80°F, and the expected high and low for today, Tuesday, July 21, 2026, are -° high temperature and 72°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the West Northwest. The wind is gusting to 17 mph. With the wind and the atmosphere the temperature feels like 81° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 47 percent, and air pressure at 29.95 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    High Surf Advisory - 2:39am Tue Jul 21 2026

    ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...

    WHAT: Large breaking waves of 4 to 7 feet with sets up to 8
    feet at south or southwest facing beaches.

    WHERE: San Diego County Coastal Areas and Orange County
    Coastal Areas.

    WHEN: Until 11 PM PDT this evening.

    IMPACTS: Dangerous swimming and surfing conditions and
    localized beach erosion.

    ADDITIONAL DETAILS: South swell of 4 to 5 feet with a period of
    11-13 seconds generating high surf, primarily for south-facing
    beaches. High risk of rip currents exists with high surf and
    strong longshore currents are expected on west-facing beaches.
    While high tide is expected to remain below 5 feet this evening,
    localized areas of beach erosion and minor tidal overflow may
    occur in combination with the high surf. Swell and surf will
    decrease tonight into early Wednesday.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced swimmers should remain out of the water due to
    dangerous surf conditions.

    &&