5-day weather forecast San Francisco 08-08-2026

Weather forecast San Francisco today 08.08.2026: sunny, temperature from 13 °C to 21 °C.

Precipitation probability 35%. Wind up to 4.81 m/s (gusts 7.11 m/s). Air humidity 61–100%, atmospheric pressure 758–761 mm Hg, UV index up to 8.8.

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MinorAug 7, 04:33 PM — Aug 8, 06:00 PMTranslate with Google

Coastal Flood Advisory issued August 7 at 4:33PM PDT until August 13 at 2:00AM PDT by NWS San Francisco CA

Coastal Flood Advisory

* WHAT...Up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along the San Francisco Bay, San Pablo Bay, and Monterey Bay. * WHEN...From 5 PM Friday to 2 AM PDT Thursday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.0 ft above normal (6.84 ft MLLW) at 6:55 PM Friday 8/7, 1.4 ft above normal (7.25 ft MLLW) at 8:00 PM Saturday 8/8, 1.6 ft above normal (7.44 ft MLLW) at 9:02 PM Sunday 8/9, 1.6 ft above normal (7.46 ft MLLW) at 10:01 PM Monday 8/10, 1.6 ft above normal (7.44 ft MLLW) at 10:57 PM Tuesday 8/11, and 1.3 ft above normal (7.14 ft MLLW) at 11:49 PM Wednesday 8/12. These predictions include both astronomical tides and roughly 3-6 inches of additional water mainly from a combination of thermal expansion and accumulated sea level rise since the tidal datum was established (1983-2001). High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

High tides may result in flooding along coastal trails, cut off access to some low-lying coastal areas and beaches, and bring water and waves farther up the beach than typical. If travel is required, allow extra time as some roads may be closed. Do not drive, bike, or walk around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

5 days at a glance — tap a day to open it

Sunrise 06:19
Sunset 20:11

Waning Crescent16% illuminated
Moonrise 01:05 · Moonset 16:55

Chart

Table

Sat, Aug 8, 2026

Sun, Aug 9 →

Forecast from 13 °C to 21 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	14	14	13	13	13	13	13	13	13	14	15	16	18	19	20	21	20	20	19	18	17	16	16	16
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	98	100	100	100	100	100	100	100	97	85	56	25	19	20	2	0	0	0	0	0	0	0	0
Rain chance (%)	35	35	35	35	35	35	35	35	35	32	28	19	11	9	9	4	4	4	4	5	7	8	8	8

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	3.5	3.11	3	3	2.81	2.89	2.69	2.61	2.69	2.61	2.89	3.11	3.31	3.69	4.19	4.69	4.81	4.61	4.31	4.19	4.19	3.89	3.61	3.61
Wind gust (m/s)	5.72	5.08	4.89	4.92	4.72	4.92	4.64	4.25	3.92	3.5	3.75	4.03	4.39	5.14	5.97	6.78	7.11	7.03	6.58	6.42	6.89	6.58	6.11	6.17
Wind direction (°)	WSW 240°	SW 235°	SW 227°	SW 230°	SW 221°	SW 217°	SW 219°	SW 223°	SW 224°	SW 223°	SW 235°	WSW 240°	WSW 241°	WSW 243°	WSW 245°	WSW 248°	WSW 248°	WSW 247°	WSW 244°	WSW 238°	SW 236°	SW 231°	SW 224°	SW 219°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	100	99	98	100	99	100	100	100	100	96	93	88	80	76	76	61	61	62	64	68	74	77	78	78

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	761	761	761	760	760	760	760	761	761	761	761	761	761	760	760	759	759	758	758	758	758	758	758	758

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.2	0.7	2	4	6.2	8	8.8	8.7	7.1	4.9	2.7	1.1	0.3	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	12.5	12.4	12.1	11.7	11.4	10.7	10.6	10.9	10.9	11	10.9	10.9	11.1	11.2	11.2	11.2	11.1	11.3	11.7	12	12.6	13.5	14.1	14.5
PM10 (µg/m³)	18.6	18.3	17.9	17.5	17	15.7	15.5	15.8	15.8	16.1	15.8	15.9	16.1	16.2	16.1	16.1	16	16.2	16.8	17.4	18.4	19.7	20.5	21.2
Ozone (O₃) (µg/m³)	57	59	60	60	60	60	60	59	59	60	62	63	64	64	64	62	59	56	53	50	48	48	48	49
NO₂ (µg/m³)	5.9	5	4.4	4.4	4.7	4.9	5	5	5	4.8	4.4	4.2	4.1	4	4.2	4.6	5.2	6.2	7.9	9.8	11.2	11.4	11	10.6
SO₂ (µg/m³)	0.9	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.9	0.9	1	1	1	1	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
CO (µg/m³)	94	92	91	91	92	93	93	92	91	91	90	90	89	88	88	89	90	91	92	93	95	97	100	101

Sat, Aug 8, 2026

Sun, Aug 9 →

Frequently asked questions about the 5-day weather in San Francisco

Over the next 5 days in San Francisco the temperature is expected to range from about 13 to 22 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

The chance of rain in San Francisco over the next 5 days reaches 35%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Over the next 5 days the temperature in San Francisco ranges from about 13 to 22 °C. Compare the warmest and coolest day on the temperature chart above.

Over the next 5 days the wind in San Francisco picks up to 6 m/s. The windiest days are easy to spot on the wind chart above.

For a walk or a trip, pick the days with the lowest chance of rain (up to 35%) and light wind — easy to compare on the 5-day charts above.

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

San Francisco on the map

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.

Learn more about our methodology →