Weather in San Jose on 4 August 2026
Preliminary outlook for 4 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +31°C and nighttime around +24°C, average precipitation 0 mm, wind around 4 m/s, humidity around 63%.
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.
+28°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +25°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 59%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°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.) | +19°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 78° → (E) |
Sunrise
07:16
Duration
13 h 56 min
Sunset
21:12
Moonrise
18:12
Moonset
02:31
Moon phase
Waxing Gibbous
Illumination
69%
+27°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +23°C
Sea temperature: +26°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +26°C |
| Feels like (avg.) | +30°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 127° ↘ (SSE) |
Sunrise
07:17
Duration
13 h 54 min
Sunset
21:11
Moonrise
07:00
Moonset
21:39
Moon phase
New Moon
Illumination
0%
+27°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 4 — 7 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 30% |
| Pressure (avg.) | 761 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.) | 12 m/s | Wind direction (avg.) | 85° ↗ (ENE) |
Sunrise
07:16
Duration
13 h 56 min
Sunset
21:12
Moonrise
23:09
Moonset
09:53
Moon phase
Waning Gibbous
Illumination
78%
+30°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 41%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +36°C | Sun hours | 14 h |
| UV index | 8 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +31°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 73° → (E) |
Sunrise
07:16
Duration
13 h 56 min
Sunset
21:12
Moonrise
13:40
Moonset
00:25
Moon phase
First Quarter
Illumination
44%
+26°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°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.) | +27°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 229° ↙ (SW) |
Sunrise
07:16
Duration
13 h 56 min
Sunset
21:12
Moonrise
03:33
Moonset
18:45
Moon phase
Waning Crescent
Illumination
18%
+26°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 13% |
| Pressure (avg.) | 759 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.) | +27°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 89° → (E) |
Sunrise
07:17
Duration
13 h 54 min
Sunset
21:11
Moonrise
22:10
Moonset
07:49
Moon phase
Full Moon
Illumination
100%
Weather in San Jose on 4 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+32°C
|
+25°C
|
+28°C | 14 h | 7 | 59% | 5 — 6 m/s |
| 2024 |
+30°C
|
+23°C
|
+27°C | 14 h | 7 | 64% | 2 — 3 m/s |
| 2023 |
+29°C
|
+25°C
|
+27°C | 9 h | 7 | 72% | 4 — 7 m/s |
| 2022 |
+36°C
|
+25°C
|
+30°C | 14 h | 8 | 41% | 5 — 6 m/s |
| 2021 |
+30°C
|
+22°C
|
+26°C | 14 h | 7 | 66% | 4 — 5 m/s |
| 2020 |
+29°C
|
+25°C
|
+26°C | 14 h | 7 | 75% | 4 — 5 m/s |