San Diego, CA Hourly Forecast
San Diego temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 11 AM - around 72°
- Coolest hour: 1 AM - around 69°
- Highest rain chance: 12 AM (25%) - pack accordingly
- UV peak: 1 PM at index 8 - sun protection recommended
- Windiest: 1 PM at 11 mph
San Diego hourly weather - Thursday, September 17
In San Diego, expect a high near 72°F (22°C) around 11 AM and a low of 69°F (21°C) near 1 AM; precipitation risk peaks at 25% around 12 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 70° | 70° | 25% | 4 mph W | 74% | 0 | |
| 1 AM | Patchy rain nearby | 69° | 70° | 24% | 4 mph W | 74% | 0 | |
| 2 AM | Patchy rain nearby | 69° | 70° | 24% | 4 mph W | 73% | 0 | |
| 3 AM | Patchy rain nearby | 69° | 70° | 20% | 4 mph WSW | 72% | 0 | |
| 4 AM | Patchy rain nearby | 70° | 70° | 18% | 4 mph WSW | 71% | 0 | |
| 5 AM | Patchy rain nearby | 69° | 70° | 12% | 4 mph WSW | 70% | 0 | |
| 6 AM | Partly Cloudy | 69° | 70° | 11% | 4 mph WSW | 70% | 0 | |
| 7 AM | Partly Cloudy | 70° | 70° | 9% | 3 mph WSW | 66% | 0 | |
| 8 AM | Partly Cloudy | 70° | 71° | 7% | 3 mph W | 64% | 1 | |
| 9 AM | Sunny | 71° | 72° | 5% | 3 mph W | 62% | 2 | |
| 10 AM | Sunny | 72° | 71° | 4% | 6 mph W | 61% | 4 | |
| 11 AM | Sunny | 72° | 70° | 4% | 8 mph W | 61% | 6 | |
| 12 PM | Sunny | 72° | 69° | 4% | 10 mph W | 62% | 8 | |
| 1 PM | Sunny | 72° | 68° | 4% | 11 mph W | 65% | 8 | |
| 2 PM | Sunny | 71° | 68° | 5% | 11 mph W | 66% | 7 | |
| 3 PM | Sunny | 71° | 68° | 5% | 11 mph WNW | 66% | 6 | |
| 4 PM | Sunny | 71° | 68° | 5% | 10 mph WNW | 66% | 3 | |
| 5 PM | Sunny | 71° | 68° | 5% | 9 mph WNW | 67% | 1 | |
| 6 PM | Sunny | 70° | 68° | 5% | 8 mph WNW | 68% | 0 | |
| 7 PM | Clear | 70° | 68° | 6% | 8 mph WNW | 70% | 0 | |
| 8 PM | Clear | 70° | 69° | 6% | 8 mph NW | 71% | 0 | |
| 9 PM | Clear | 70° | 69° | 6% | 7 mph NW | 72% | 0 | |
| 10 PM | Clear | 70° | 69° | 6% | 7 mph NW | 72% | 0 | |
| 11 PM | Clear | 69° | 69° | 7% | 7 mph NW | 73% | 0 |
San Diego hourly weather - Friday, September 18
In San Diego, expect a high near 72°F (22°C) around 1 PM and a low of 68°F (20°C) near 5 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 69° | 68° | 8% | 7 mph NW | 74% | 0 | |
| 1 AM | Clear | 69° | 68° | 8% | 7 mph NW | 74% | 0 | |
| 2 AM | Clear | 68° | 68° | 8% | 6 mph NW | 75% | 0 | |
| 3 AM | Clear | 68° | 68° | 8% | 6 mph NW | 76% | 0 | |
| 4 AM | Clear | 68° | 68° | 9% | 6 mph NW | 77% | 0 | |
| 5 AM | Clear | 68° | 68° | 9% | 6 mph NNW | 77% | 0 | |
| 6 AM | Clear | 68° | 68° | 8% | 5 mph NNW | 76% | 0 | |
| 7 AM | Sunny | 68° | 68° | 9% | 5 mph NW | 76% | 0 | |
| 8 AM | Sunny | 68° | 69° | 8% | 5 mph NW | 75% | 1 | |
| 9 AM | Sunny | 69° | 70° | 7% | 5 mph NW | 72% | 2 | |
| 10 AM | Sunny | 70° | 70° | 6% | 6 mph WNW | 70% | 4 | |
| 11 AM | Sunny | 71° | 70° | 5% | 8 mph WNW | 68% | 6 | |
| 12 PM | Sunny | 71° | 69° | 5% | 9 mph W | 66% | 8 | |
| 1 PM | Sunny | 72° | 69° | 4% | 10 mph W | 65% | 8 | |
| 2 PM | Sunny | 72° | 69° | 4% | 10 mph W | 65% | 7 | |
| 3 PM | Sunny | 72° | 68° | 4% | 11 mph W | 65% | 5 | |
| 4 PM | Sunny | 72° | 68° | 5% | 11 mph W | 66% | 3 | |
| 5 PM | Sunny | 71° | 68° | 5% | 11 mph WNW | 67% | 1 | |
| 6 PM | Sunny | 71° | 68° | 5% | 10 mph WNW | 68% | 0 | |
| 7 PM | Clear | 70° | 69° | 5% | 8 mph NW | 69% | 0 | |
| 8 PM | Clear | 70° | 69° | 5% | 7 mph WNW | 69% | 0 | |
| 9 PM | Clear | 70° | 69° | 6% | 7 mph WNW | 70% | 0 | |
| 10 PM | Clear | 70° | 69° | 6% | 7 mph NW | 71% | 0 | |
| 11 PM | Clear | 69° | 69° | 6% | 5 mph NW | 70% | 0 |
Quick answers for the hours ahead
What is the warmest hour in San Diego today?
Will it rain in San Diego tonight?
When is the UV index highest in San Diego today?
San Diego hour-by-hour: what to expect
Over the next 24 hours in San Diego, temperatures range from 69°F (21°C) around 1 AM up to 72°F (22°C) near 11 AM - about 6°F (3°C) below the typical September high of 78°F (26°C).
A stray shower can't be ruled out - Rain chances top out at 25% around 12 AM. UV reaches 8 (1 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the San Diego 14-day forecast or the monthly climate averages.