5-day weather forecast San Diego 18-08-2026
Weather forecast San Diego tomorrow 18.08.2026: patchy rain possible, temperature from 13 °C to 14 °C.
Precipitation probability 17%. Wind up to 6.61 m/s (gusts 11.5 m/s). Air humidity 50–58%, atmospheric pressure 765–769 mm Hg, UV index up to 10.5.
5 days at a glance — tap a day to open it
Sunrise 06:14
Sunset 19:30
Sunset 19:30
First Quarter37% illuminated
Moonrise 12:35 · Moonset 22:56
Moonrise 12:35 · Moonset 22:56
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 14 °C | 9% (0.01 mm/hr) | 71% | 53% | 765 mm Hg | SW 222° 6.61 (7.31) m/s | 0 |
| 01:00 | Patchy rain possible | 14 °C | 11% (0.01 mm/hr) | 87% | 54% | 765 mm Hg | SW 226° 6.39 (6.81) m/s | 0 |
| 02:00 | Patchy rain possible | 14 °C | 12% (0.02 mm/hr) | 87% | 52% | 765 mm Hg | SW 231° 6.31 (6.53) m/s | 0 |
| 03:00 |  Clear | 14 °C | 3% | 5% | 55% | 765 mm Hg | SW 229° 6.5 (11.5) m/s | 0 |
| 04:00 | Clear | 13 °C | 3% | 5% | 55% | 765 mm Hg | SW 227° 5.89 (6.25) m/s | 0 |
| 05:00 | Patchy rain possible | 13 °C | 12% (0.01 mm/hr) | 87% | 55% | 766 mm Hg | SW 227° 5.69 (5.92) m/s | 0 |
| 06:00 | Patchy rain possible | 13 °C | 11% (0.02 mm/hr) | 76% | 56% | 766 mm Hg | SW 221° 5.89 (10.89) m/s | 0 |
| 07:00 |  Patchy rain possible | 13 °C | 10% (0.01 mm/hr) | 76% | 56% | 767 mm Hg | SW 219° 5.11 (5.31) m/s | 0.2 |
| 08:00 | Patchy rain possible | 13 °C | 11% (0.01 mm/hr) | 79% | 56% | 767 mm Hg | SW 216° 4.69 (5.03) m/s | 1.1 |
| 09:00 | Patchy rain possible | 13 °C | 12% (0.01 mm/hr) | 83% | 57% | 768 mm Hg | SSW 210° 4.61 (7.61) m/s | 3 |
| 10:00 | Patchy rain possible | 13 °C | 12% (0.02 mm/hr) | 79% | 58% | 768 mm Hg | SSW 211° 4.11 (7.11) m/s | 5.6 |
| 11:00 | Patchy rain possible | 13 °C | 17% (0.13 mm/hr) | 71% | 57% | 768 mm Hg | SSW 213° 3.39 (3.42) m/s | 8.1 |
| 12:00 |  Sunny | 13 °C | 3% | 6% | 56% | 768 mm Hg | SW 219° 2.89 (7.89) m/s | 9.9 |
| 13:00 | Patchy rain possible | 13 °C | 10% (0.01 mm/hr) | 79% | 56% | 768 mm Hg | SW 228° 2.5 (2.5) m/s | 10.5 |
| 14:00 | Sunny | 13 °C | 3% | 5% | 56% | 767 mm Hg | SW 234° 2.5 (2.61) m/s | 9.6 |
| 15:00 | Sunny | 13 °C | 3% | 5% | 55% | 767 mm Hg | SW 232° 2.69 (2.92) m/s | 7.3 |
| 16:00 | Sunny | 13 °C | 3% | 5% | 54% | 767 mm Hg | SW 228° 2.89 (3.11) m/s | 4.5 |
| 17:00 | Patchy rain possible | 13 °C | 10% (0.01 mm/hr) | 78% | 54% | 767 mm Hg | SW 218° 3 (3.22) m/s | 2.1 |
| 18:00 | Patchy rain possible | 14 °C | 10% (0.01 mm/hr) | 79% | 53% | 767 mm Hg | SSW 210° 3 (3.19) m/s | 0.6 |
| 19:00 | Sunny | 14 °C | 3% | 5% | 52% | 768 mm Hg | SSW 205° 3 (3.11) m/s | 0 |
| 20:00 | Clear | 14 °C | 2% | 5% | 52% | 769 mm Hg | SSW 202° 2.69 (2.83) m/s | 0 |
| 21:00 | Clear | 14 °C | 2% | 5% | 51% | 769 mm Hg | SSW 197° 2.11 (2.22) m/s | 0 |
| 22:00 | Clear | 13 °C | 2% | 5% | 50% | 769 mm Hg | S 189° 1.39 (1.53) m/s | 0 |
| 23:00 | Clear | 14 °C | 2% | 5% | 50% | 769 mm Hg | SSW 193° 1.19 (1.31) m/s | 0 |
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Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.