Forget Spring! San Diego’s Unseasonable Heatwave Could Break Temperature Records

San Diego is known for its mild, comfortable climate, but the city is about to experience an unexpected and significant warm-up that could leave residents sweating. After days of cool mornings and cloudy skies, a strong heatwave is set to push temperatures far above the seasonal average, bringing an early taste of summer. This shift will have everyone reaching for sunscreen and ice-cold drinks as the region gears up for an unseasonable surge in heat.

Saturday: A Classic San Diego Start

The weekend begins with the usual morning fog and low clouds, a familiar sight for San Diego residents. But by midday, the sun will break through, warming things up to 65°F (18°C). The evening will be cool but pleasant, with temperatures dropping to 52°F (11°C). A picture-perfect day for outdoor activities, but it won’t last for long—because a heatwave is building.

Sunday: The Calm Before the Heat

Sunday will mirror Saturday with morning cloud cover giving way to afternoon sunshine. The high temperature will tick up slightly to 66°F (19°C), with a nighttime low of 52°F (11°C). While it will still feel like classic March weather, this is the last day before temperatures start soaring.

Monday: The Heatwave Begins

By Monday, San Diego will start to feel a noticeable shift in the weather. Morning fog will clear earlier than usual, and the sun will dominate the skies. Temperatures will rise to 68°F (20°C), and the nighttime low will only dip to 54°F (12°C). It’s the beginning of a major warm-up that will intensify in the coming days.

Tuesday & Wednesday: Near Record-Breaking Heat

Tuesday will bring a significant temperature jump. Highs will reach a scorching 74°F (23°C), making it one of the warmest days of the month. By Wednesday, temperatures could challenge records, soaring to 80°F (27°C). These numbers are far above the typical March averages, making it feel more like the middle of summer than early spring. With warm air lingering overnight, temperatures won’t drop much, staying at 56°F (13°C). Residents should take precautions against heat exhaustion, stay hydrated, and avoid prolonged sun exposure.

Thursday & Friday: Heatwave Persists Before Gradual Cooling

Thursday will continue the hot streak, with temperatures hovering around 78°F (26°C) before gradually cooling down into the evening. By Friday, the heatwave will begin to ease, with temperatures dipping slightly to 75°F (24°C). However, it will still be much warmer than normal for this time of year.

How to Stay Safe During San Diego’s Sudden Heatwave

1. Stay Hydrated – Drink plenty of water, even if you don’t feel thirsty.

2. Limit Outdoor Activities – Try to stay indoors or in the shade during the hottest parts of the day.

3. Wear Sun Protection – Apply sunscreen, wear light clothing, and use hats and sunglasses to avoid sunburn.

4. Check on Vulnerable Individuals – Ensure that children, the elderly, and pets are staying cool and hydrated.

5. Keep Your Home Cool – Use fans, air conditioning, or blackout curtains to keep indoor temperatures manageable.

San Diego’s heatwave is coming fast, and the city is about to experience temperatures well above normal for March. Be prepared, take precautions, and enjoy the sunshine responsibly as we head into this unexpected taste of summer!