5-day weather forecast San Diego 09-07-2026

Weather forecast San Diego Thursday, July 9 09.07.2026: sunny, temperature from 20 °C to 24 °C.

Precipitation probability 6%. Wind up to 5.11 m/s (gusts 5.86 m/s). Air humidity 61–80%, atmospheric pressure 757–759 mm Hg, UV index up to 11.8.

Weather Alerts

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ModerateJul 7, 07:13 AM — Jul 7, 10:45 PMTranslate with Google

Heat Advisory issued July 7 at 12:13AM PDT until July 9 at 8:00PM PDT by NWS San Diego CA

Heat Advisory

* WHAT...High temperatures in the 90s expected. * WHERE...San Diego County Mountains. * WHEN...From 10 AM Wednesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

SevereJul 7, 07:13 AM — Jul 7, 10:45 PMTranslate with Google

Extreme Heat Warning issued July 7 at 12:13AM PDT until July 9 at 8:00PM PDT by NWS San Diego CA

Extreme Heat Warning

* WHAT...Dangerously hot conditions with high temperatures up to 117 expected. Nights will remain quite warm with low temperatures mostly in the 80s. * WHERE...San Diego County Deserts. * WHEN...From 10 AM this morning to 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

ModerateJul 7, 07:16 PM — Jul 8, 05:30 AMTranslate with Google

Heat Advisory issued July 7 at 12:16PM PDT until July 9 at 8:00PM PDT by NWS San Diego CA

Heat Advisory

* WHAT...High temperatures in the 90s expected. * WHERE...San Diego County Mountains. * WHEN...From 10 AM Wednesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

SevereJul 7, 07:16 PM — Jul 8, 05:30 AMTranslate with Google

Extreme Heat Warning issued July 7 at 12:16PM PDT until July 9 at 8:00PM PDT by NWS San Diego CA

Extreme Heat Warning

* WHAT...Dangerously hot conditions with high temperatures up to 117 expected. Nights will remain quite warm with low temperatures mostly in the 80s. * WHERE...San Diego County Deserts. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Sunrise 05:48
Sunset 19:59

Waning Crescent19% illuminated
Moonrise 00:57 · Moonset 15:07

Chart

Table

← Wed, Jul 8

Thu, Jul 9, 2026

Fri, Jul 10 →

Forecast from 20 °C to 24 °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)	22	21	21	21	20	20	20	20	21	22	23	23	24	24	24	24	24	24	23	22	22	21	21	21
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 (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Rain chance (%)	6	7	8	8	8	9	9	8	7	5	4	4	4	4	4	4	4	4	4	5	6	7	7	7

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)	1.89	1.69	1.61	1.5	1.69	1.61	1.39	1.31	2.11	2.81	3.81	4.5	4.19	4.61	5	5.11	4.89	4.31	3.5	2.81	2.5	2.11	1.69	2
Wind gust (m/s)	2.5	2.28	2.17	2.11	2.36	2.22	1.97	1.72	2.56	3.22	4.36	5.17	4.83	5.28	5.75	5.86	5.64	4.94	4.03	3.22	3.03	2.61	2.17	2.58
Wind direction (°)	WSW 249°	WSW 247°	WSW 238°	WSW 243°	WSW 247°	WSW 241°	WSW 258°	SW 228°	SSW 201°	SSW 198°	SSW 202°	SSW 208°	SW 215°	SSW 212°	SSW 206°	SSW 206°	SSW 206°	SSW 213°	SW 215°	SW 217°	SSW 208°	SSW 212°	SSW 198°	S 186°

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 (%)	72	74	76	77	78	79	80	78	73	68	65	64	63	62	62	61	62	63	65	67	71	73	74	74

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)	759	758	758	758	758	758	758	758	758	758	758	758	759	758	758	758	758	758	757	757	757	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	0.5	1.7	3.8	6.6	9.4	11.4	11.8	10.7	8.4	5.5	2.9	1.1	0.2	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)	12.1	13.6	14.9	16.1	17.2	18.2	18.6	16.9	14.3	14.1	14.6	15.5	16.7	17.5	17.8	17.3	16.8	16.5	16.2	16.1	15.8	14.6	12.8	12.3
PM10 (µg/m³)	15.5	17.4	19.2	20.7	21.9	22.7	23.1	20.3	19.2	19.8	20.8	22.6	24.7	26.3	27.1	26.9	26.7	26	25.8	25.4	24.8	22.6	19	17.7
Ozone (O₃) (µg/m³)	15	11	9	7	5	7	13	22	31	39	48	57	68	80	87	87	81	74	65	53	43	35	27	22
NO₂ (µg/m³)	35.1	38.7	41.1	42.7	43.2	41.2	35.2	26.8	19.7	15.5	12.6	10	7.4	5.1	3.5	2.7	2.6	3.5	5.8	9.1	12.4	15.7	19.2	22
SO₂ (µg/m³)	1.4	1.3	1.2	1.2	1.1	1.1	1.1	1.1	1.1	1.3	1.5	1.6	1.6	1.5	1.4	1.4	1.3	1.3	1.3	1.3	1.4	1.5	1.7	1.8
CO (µg/m³)	99	97	96	93	91	92	102	115	124	123	117	111	105	100	96	95	97	100	106	113	120	127	132	135

← Wed, Jul 8

Thu, Jul 9, 2026

Fri, Jul 10 →

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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.

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