San Diego weather in July
San Diego in July averages 21°C (70°F) and 2 mm of rain. It is one of the driest months of the year here.
Of the twelve months in San Diego, July is the third warmest and the third driest.
- Average temp
- 21°C (70°F)
19–24°C · 66–75°F
- Rainfall
- 2 mm
Not much rain
- Sunshine
- —
- Wind
- 11 km/h
What is San Diego like in July?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings stay warm.
What should I pack for San Diego in July?
Layers for a mild month
Nothing here is extreme — pack for the monthly average and a jacket for the evening.
July compared with June and August
July in San Diego is 2°C warmer than June and about as wet as it, which averages 19°C (67°F).
July in San Diego is 1°C cooler than August and about as wet as it, which averages 22°C (72°F).
Daylight in San Diego in July
On 15 July the sun is up for 14 hours 5 minutes in San Diego, rising about 05:51 and setting about 19:57 local time.
July ends 31 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
Where to stay in San Diego
Dates are a starting point for July.
Travel guides for San Diego
What to read before you book.
San Diego weather by month
TemperatureRainfall
How July compares with the rest of the year
July is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 14°C / 58°F | 50 mm |
| February | 15°C / 59°F | 56 mm |
| March | 16°C / 60°F | 37 mm |
| April | 17°C / 62°F | 17 mm |
| May | 18°C / 64°F | 7 mm |
| June | 19°C / 67°F | 1 mm |
| July | 21°C / 70°F | 2 mm |
| August | 22°C / 72°F | 0 mm |
| September | 22°C / 71°F | 3 mm |
| October | 20°C / 68°F | 13 mm |
| November | 17°C / 62°F | 20 mm |
| December | 14°C / 58°F | 42 mm |
Check another month
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FAQs about San Diego in July
July climate averages for San Diego, 1991–2020.
San Diego averages 21°C (70°F) in July, ranging from about 19°C (66°F) at night to 24°C (75°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. July sees only about 2 mm, so rain is unlikely to affect your plans.
No. July averages 21°C (70°F) against 22°C (72°F) in August — 1°C cooler.
July is 2°C warmer than June, and about as wet.
Yes. July falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what July is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 14 hours 5 minutes of daylight in mid-July, against 14 hours 18 minutes in June and 10 hours 1 minute in December.
On 15 July, sunrise is about 05:51 and sunset about 19:57 local time. Both shift across the month — the month ends 31 minutes shorter than it starts.
