San Francisco weather in July

In July, San Francisco sees average daytime highs of 17°C and overnight lows near 6°C, with 20 mm of rain across 3.5 wet days and about 10.2 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 52% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of July to 10 h 24 min by month's end. Set against the rest of the year, July is San Francisco's 3rd-clearest and 5th-windiest month. For the whole year in context, see San Francisco's year-round climate.

Daytime high
17°
12th warmest
Overnight low
1st coldest
Rainfall
20 mm
3.5 wet days
Daylight
10 h 06 min
8:10 AM – 6:18 PM
Cloud cover
43%
3rd clearest
Wind
13 km/h
5th windiest
Solar energy
2.94 kWh/m²
Travel score
6.7
out of 10

San Francisco is city in Argentina.

Founded
1886

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical July day in San Francisco reaches about 17°C in the afternoon and slips back to 6°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 23°C. Set against its neighbours, July runs on par with June and about 3°C cooler than August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5177
6177
7177
8176
9176
10176
11176
12176
13176
14176
15176
16176
17176
18176
19176
20176
21176
22176
23176
24176
25186
26186
27186
28186
29187
30187
31187

San Francisco weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°1199.113.85.3
Feb29° / 19°1159.113.15.8
Mar27° / 17°1389.212.26.8
Apr24° / 14°1008.211.37.4
May20° / 11°475.510.47.1
Jun18° / 304.3106.6
Jul17° / 203.510.26.7
Aug20° / 393.810.97.6
Sep22° / 11°515.411.87.8
Oct25° / 14°1169.612.87.2
Nov28° / 16°1198.913.66.6
Dec30° / 18°1289.6145.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 12% of July, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
45941
56040
66040
76040
86139
96238
106238
116337
126337
136535
146535
156535
166634
176634
186733
196733
206832
216832
226832
236832
246832
256832
266832
276733
286733
296832
306832
316832

Chance of precipitation in July

Any precipitation

San Francisco gets around 20 mm of rain over 3.5 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
213
313
412
512
612
712
811
911
1011
1110
1210
1310
149
159
169
179
1810
1910
2010
2110
2210
2310
2411
2511
2611
2711
2812
2912
3012
3112

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1841141
2851131
3851131
4851131
5851131
6851131
7871120
8871120
9881020
10881020
11881020
12881020
13881020
1489920
1589920
1689920
1790910
1890910
1991810
2090820
2190820
2290820
2390820
2490820
2590820
2690820
2790820
2890820
2990820
3090820
3190820

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 hours at the start of July to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over July. Sunrise moves from 8:12 AM to 8:02 AM, and sunset from 6:11 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.08:126:11
210.08:126:11
310.08:126:12
410.08:126:12
510.08:126:13
610.08:126:13
710.08:126:13
810.08:126:14
910.08:126:14
1010.18:126:15
1110.18:116:15
1210.18:116:16
1310.18:116:16
1410.18:106:17
1510.18:106:18
1610.18:106:18
1710.28:096:19
1810.28:096:19
1910.28:096:20
2010.28:086:20
2110.28:086:21
2210.28:076:22
2310.38:076:22
2410.38:066:23
2510.38:066:23
2610.38:056:24
2710.38:046:25
2810.48:046:25
2910.48:036:26
3010.48:026:27
3110.48:026:27

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.94 kWh/m².

For context, solar energy here swings from a low near 2.55 kWh/m² to a high of 7.19 kWh/m² in December across the year — July's 2.94 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.3Moderate
313.4Moderate
Planning a trip in July

Is July a good time to visit San Francisco?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.7
Sightseeing
7th-best month of the year
1.8
Beach & pool
12th-best month of the year

July is a reasonable time to visit San Francisco for sightseeing.

What to pack for San Francisco in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, San Francisco sees daytime highs around 17°C and nights near 6°C. Worth packing: a warm layer. About 4 days see rain.

a warm layer

UV index in San Francisco in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Francisco peaks around January 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 17UV 14Jun 21UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct10Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is San Francisco?

San Francisco sits at 31.4°S, 62.1°W, 120 m above sea level, in Argentina. The nearest listed city is San Jorge, 57 km away.

Topography around San Francisco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Francisco.

Within 3 km, the terrain around San Francisco has only modest variations in elevation — a maximum elevation change of 13 m around an average of 114 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 24 m; within 80 km, only modest variations in elevation — a maximum elevation change of 103 m.

The land around San Francisco is covered by artificial surfaces (50%) and cropland (30%) within 3 km, cropland (94%) within 16 km, and cropland (88%) within 80 km.

3 km
13 m
16 km
24 m
80 km
103 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: San Jorge 57 km · Rafaela 60 km · Sunchales 73 km · Las Varillas 78 km · Morteros 80 km · Arroyito 92 km · Gálvez 106 km · Esperanza 109 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Francisco (-31.425°, -62.084°, elevation 120 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).