Weather in San Jose on 12 August 2026
Preliminary outlook for 12 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +32°C and nighttime around +25°C, average precipitation 0.1 mm, wind around 3 m/s, humidity around 61%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+29°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +25°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 48%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 203° ↘ (SSE) |
Sunrise
07:23
Duration
13 h 40 min
Sunset
21:03
Moonrise
22:44
Moonset
10:25
Moon phase
Waning Gibbous
Illumination
73%
+27°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +24°C
Sea temperature: +26°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +26°C |
| Feels like (avg.) | +30°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 171° ↓ (SSW) |
Sunrise
07:23
Duration
13 h 40 min
Sunset
21:03
Moonrise
15:16
Moonset
00:34
Moon phase
First Quarter
Illumination
50%
+27°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 69%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 1% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +21°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 151° ↘ (SSE) |
Sunrise
07:23
Duration
13 h 41 min
Sunset
21:04
Moonrise
03:22
Moonset
19:02
Moon phase
Waning Crescent
Illumination
20%
+30°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +35°C | Sun hours | 12 h |
| UV index | 7 | Cloud cover (avg.) | 26% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +21°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 182° ↘ (SSE) |
Sunrise
07:23
Duration
13 h 40 min
Sunset
21:03
Moonrise
21:41
Moonset
07:08
Moon phase
Full Moon
Illumination
100%
+30°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 63%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 33% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 208° ↘ (SE) |
Sunrise
07:23
Duration
13 h 40 min
Sunset
21:03
Moonrise
11:05
Moonset
23:29
Moon phase
Waxing Crescent
Illumination
25%
+27°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +24°C
Precipitation: 0.7 mm
Wind: 4 — 6 m/s
Humidity: 63%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 24% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 231° ↙ (SW) |
Sunrise
07:23
Duration
13 h 40 min
Sunset
21:03
Moonrise
01:36
Moonset
15:54
Moon phase
Last Quarter
Illumination
38%
Weather in San Jose on 12 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+31°C
|
+25°C
|
+29°C | 14 h | 7 | 48% | 2 — 3 m/s |
| 2024 |
+30°C
|
+24°C
|
+27°C | 14 h | 7 | 64% | 3 — 4 m/s |
| 2023 |
+30°C
|
+24°C
|
+27°C | 14 h | 7 | 69% | 2 — 3 m/s |
| 2022 |
+35°C
|
+25°C
|
+30°C | 12 h | 7 | 60% | 2 — 3 m/s |
| 2021 |
+34°C
|
+25°C
|
+30°C | 14 h | 7 | 63% | 2 — 3 m/s |
| 2020 |
+31°C
|
+24°C
|
+27°C | 11 h | 7 | 63% | 4 — 6 m/s |