Oceanside Harbor, CA Weather Tomorrow

Get a closer look at tomorrow's weather in Oceanside Harbor and the upcoming 5 day forecast with precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction across the Oceanside Harbor area.
Updated: Sun Sep 13th 2026 10:30 AM PDT
Oceanside Harbor, CA Weather – 9-13 – Sunny
72° / 70°
Sunny
Oceanside Harbor may see a sunny day, with daytime highs of 72°F and overnight lows near 70°F. There might be light rainfall having a 12% chance with an estimated 0in. Winds will be light at 9mph and gusts of 19.9mph at 12 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 82% at 11 PM and 75% being its lowest at 5 PM. Barometric pressure is its highest of 29.89inHg at 11 AM, a lowest point of 29.8inHg at 5 PM with an avg 29.83inHg.
Oceanside Harbor, CA Weather – 9-14 – Sunny
71° / 70°

Weather Tomorrow

Sunny
Oceanside Harbor may see sunshine, with daytime highs of 71°F and overnight lows near 70°F. There's a very small chance of rainfall, only about 9%. Wind will be moderate, blowing around 11mph on average and gusts of 12.1mph at 8 AM. The humidity will be on the higher side, averaging about 80%, the maximum being 86% at 2 AM and 75% being its lowest at 5 PM. Barometric pressure is its highest of 29.85inHg at 10 PM, a lowest point of 29.8inHg at 5 PM with an avg 29.82inHg.
Oceanside Harbor, CA Weather – 9-15 – Sunny
71° / 69°
Sunny
Daytime highs will reach 71°F with lows dropping to 69°F in Oceanside Harbor, where it will be sunny. There's a very small chance of rainfall, only about 8%. Winds will be light at 9mph and gusts of 19mph at 11 AM. The humidity will be on the higher side, averaging about 76%, the maximum being 81% at 2 AM and 72% being its lowest at 12 PM. Barometric pressure is its highest of 29.94inHg at 11 AM, a lowest point of 29.84inHg at 3 AM with an avg 29.89inHg.
Oceanside Harbor, CA Weather – 9-16 – Sunny
70° / 68°
Sunny
Oceanside Harbor is set for sunshine with temperatures peaking at 70°F and dipping to 68°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 8mph and gusts of 18.1mph at 4 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 80% at 5 AM and 74% being its lowest at 5 PM. Barometric pressure is its highest of 29.99inHg at 11 PM, a lowest point of 29.91inHg at 3 AM with an avg 29.95inHg.
Oceanside Harbor, CA Weather – 9-17 – Sunny
70° / 67°
Sunny
Oceanside Harbor is set for a sunny day with temperatures peaking at 70°F and dipping to 67°F. There's a very small chance of rainfall, only about 10%. Winds will be light at 10mph and gusts of 21mph at 3 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 81% at 5 AM and 75% being its lowest at 5 PM. Barometric pressure is its highest of 30.05inHg at 9 PM, a lowest point of 29.98inHg at 3 AM with an avg 30.02inHg.
Oceanside Harbor, CA Weather – 9-18 – Sunny
71° / 68°
Sunny
In Oceanside Harbor, it will be sunny with highs near 71°F and lows around 68°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 10mph and gusts of 21mph at 2 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 78% at 5 AM and 68% being its lowest at 5 PM. Barometric pressure is its highest of 30.04inHg at 12 AM, a lowest point of 29.96inHg at 5 PM with an avg 30inHg.

Currently

Sunny 72°F
29.89 inHg.
Barometer
77%
Humidity
SSE 12.6 mph
Wind
Sunny

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