Late summer · Weather & things to do
Downtown San Diego & Gaslamp Quarter in August
Downtown San Diego & Gaslamp Quarter's warmest month brings highs averaging 89°F (32°C), lows of 67°F (19°C) and about 0.2 in (4 mm) of rain.
Its comfort score of 67/100 is still Good, though it ranks 12th of 12 here.
- Avg high
- 89°F (32°C)
- Avg low
- 67°F (19°C)
- Rain
- 0.2 in (4 mm)
- Humidity
- 57%
- Cloud cover
- 69%
- Daylight
- ~13 h 12 min
- Comfort score
- 67/100 · Good
What August feels like
Heat sets the pace, with highs around 89°F (32°C). Get out early and keep the hottest hours for somewhere cool.
Mornings start much cooler: lows average 67°F (19°C), about 13°C (23°F) below the afternoon high.
Rain is scarce: about 0.2 in (4 mm) for the whole month.
Plan around August
August is one of the lower-scoring months here; the best are October – March.
- Comfort holds steady from July (68 → 67/100).
- Our San Diego New Year's Eve route is planned for Dec 30 – Jan 1, a window set by the holiday season rather than the weather — August falls outside it.
What to pack for August
- Light, breathable clothes89°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningsnights drop to 67°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Downtown San Diego & Gaslamp Quarter in August
Start early and take shelter at midday: the picks below pair morning outings with places to cool off.
Hard Rock Hotel San Diego
Gaslamp hotel that throws one of the city's biggest New Year's Eve parties across several floors and its rooftop.
Why now August scores 67/100 for comfort, good conditions for being outside.
C Level
Seafood restaurant at the water's edge on Harbor Island, with a full view of the downtown skyline across the bay.
Why now A break from 89°F afternoons.
Altitude Sky Lounge
Rooftop bar on top of the Marriott Gaslamp Quarter, looking down into Petco Park.
Why now Highs near 89°F and 0.2 in of monthly rain make this an easy outdoor pick.
Coronado Ferry Landing
Shops and a small park at the Coronado ferry pier, facing the downtown skyline across the bay.
Why now One to do outside while the weather is on your side.
Nearby in August
- La Jolla in August~11 mi · highs 76°F, 0.1 in rain · 7°C (13°F) cooler by day, about as wet
- Palm Springs in August~85 mi · highs 108°F, 0.3 in rain · 10°C (18°F) warmer by day, about as wet
- Joshua Tree in August~108 mi · highs 100°F, 0.4 in rain · 6°C (11°F) warmer by day, about as wet
- Los Angeles in August~112 mi · highs 90°F, 0.0 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~394 m to Downtown San Diego & Gaslamp Quarter's ~10 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Downtown San Diego & Gaslamp Quarter in August: quick answers
Is August a good time to visit Downtown San Diego & Gaslamp Quarter?
It's one of the tougher months here, scoring 67/100, held back mainly by cloud cover. The best months are October – March. Expect highs of 89°F (32°C) and 0.2 in (4 mm) of rain.
How hot is Downtown San Diego & Gaslamp Quarter in August?
Average highs are 89°F (32°C) and average lows 67°F (19°C), making it the warmest month by daytime highs.
Does it rain a lot in Downtown San Diego & Gaslamp Quarter in August?
Not much: about 0.2 in (4 mm) of rain falls across August on average, the driest month of the year. The annual total is about 10.6 in (268 mm).
What should I pack for Downtown San Diego & Gaslamp Quarter in August?
Bring light, breathable clothes (89°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (nights drop to 67°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Downtown San Diego & Gaslamp Quarter
Planning Downtown San Diego & Gaslamp Quarter in August?
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