5-day weather forecast San Diego Oct 18, 2026
26°Weather forecast San Diego Sunday Oct 18, 2026: sunny, temperature from 23 °C to 26 °C.
Precipitation probability 2%. Wind up to 5.19 m/s (gusts 10 m/s). Air humidity 30–54%, atmospheric pressure 759–761 mm Hg, UV index up to 6.2.
5 days at a glance — tap a day to open it
Sunrise 06:54
Sunset 18:12
Sunset 18:12
First Quarter58% illuminated
Moonrise 14:21 · Moonset does not set today
Moonrise 14:21 · Moonset does not set today
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 24 °C | 1% | 2% | 43% | 761 mm Hg | SW 223° 0.19 (0.81) m/s | 0 |
| 01:00 | Clear | 24 °C | 1% | 4% | 44% | 761 mm Hg | WNW 294° 0.31 (0.81) m/s | 0 |
| 02:00 | Clear | 24 °C | 1% | 3% | 41% | 761 mm Hg | N 3° 1.19 (1.61) m/s | 0 |
| 03:00 | Clear | 24 °C | 1% | 4% | 34% | 761 mm Hg | N 4° 2.19 (2.61) m/s | 0 |
| 04:00 | Clear | 24 °C | 1% | 5% | 32% | 760 mm Hg | NNE 20° 2.31 (2.5) m/s | 0 |
| 05:00 | Clear | 24 °C | 1% | 5% | 32% | 760 mm Hg | NE 44° 2.31 (2.5) m/s | 0 |
| 06:00 | Clear | 23 °C | 1% | 3% | 33% | 760 mm Hg | NE 52° 1.81 (1.81) m/s | 0 |
| 07:00 | Sunny | 23 °C | 1% | 0% | 35% | 761 mm Hg | NE 36° 1.39 (1.39) m/s | 0 |
| 08:00 | Sunny | 24 °C | 1% | 0% | 34% | 761 mm Hg | NE 40° 1.61 (1.64) m/s | 0.2 |
| 09:00 | Sunny | 25 °C | 1% | 0% | 34% | 761 mm Hg | NE 45° 1.81 (2) m/s | 1.1 |
| 10:00 | Sunny | 25 °C | 1% | 4% | 34% | 761 mm Hg | NE 41° 1.39 (1.72) m/s | 2.6 |
| 11:00 | Sunny | 26 °C | 1% | 2% | 33% | 761 mm Hg | NNW 346° 1.31 (1.61) m/s | 4.5 |
| 12:00 | Sunny | 26 °C | 0% | 0% | 30% | 761 mm Hg | WNW 303° 2.89 (6.89) m/s | 5.8 |
| 13:00 | Sunny | 26 °C | 1% | 2% | 31% | 760 mm Hg | WNW 298° 4.31 (9.31) m/s | 6.2 |
| 14:00 | Sunny | 26 °C | 1% | 0% | 32% | 759 mm Hg | WNW 303° 5 (10) m/s | 5.4 |
| 15:00 | Sunny | 25 °C | 1% | 0% | 39% | 759 mm Hg | NW 307° 5.19 (5.42) m/s | 3.7 |
| 16:00 | Sunny | 25 °C | 1% | 0% | 45% | 759 mm Hg | NW 311° 4.89 (6) m/s | 2 |
| 17:00 | Sunny | 25 °C | 1% | 0% | 47% | 759 mm Hg | NW 312° 4.69 (6.31) m/s | 0.6 |
| 18:00 | Sunny | 24 °C | 2% | 0% | 48% | 759 mm Hg | NW 320° 4.69 (6.11) m/s | 0 |
| 19:00 | Clear | 24 °C | 2% | 0% | 50% | 760 mm Hg | NNW 330° 4.39 (5.61) m/s | 0 |
| 20:00 | Clear | 24 °C | 2% | 0% | 51% | 760 mm Hg | NNW 333° 3.69 (4.61) m/s | 0 |
| 21:00 | Clear | 24 °C | 2% | 0% | 53% | 761 mm Hg | NNW 331° 3 (3.61) m/s | 0 |
| 22:00 | Clear | 24 °C | 2% | 0% | 54% | 761 mm Hg | NNW 329° 2.69 (3.11) m/s | 0 |
| 23:00 | Clear | 23 °C | 2% | 0% | 54% | 761 mm Hg | NNW 327° 2.5 (2.92) 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.