Milpitas weather in August

In August, Milpitas sees average daytime highs of 81°F and overnight lows near 59°F, with 0.0 in of rain across 0.2 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 81°F through the month. The sky is clear or mostly clear about 89% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Milpitas's 2nd-clearest and 9th-windiest month. For the whole year in context, see Milpitas's year-round climate.

Daytime high
81°
1st warmest
Overnight low
59°
12th coldest
Rainfall
0.0 in
0.2 wet days
Daylight
13 h 30 min
5:28 AM – 6:55 PM
Cloud cover
12%
2nd clearest
Wind
4 mph
9th windiest
Solar energy
7.11 kWh/m²
Travel score
8.9
out of 10

Milpitas is city in Santa Clara County, California, United States.

Density
2,197/km²
people per km²
Founded
1852

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 81°F through the month.

A typical August day in Milpitas reaches about 81°F in the afternoon and slips back to 59°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 91°F. Set against its neighbours, August runs on par with July and on par with September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18159
28159
38159
48159
58159
68159
78159
88159
98159
108159
118159
128159
138159
148159
158159
168159
178159
188159
198159
208159
218159
228159
238159
248159
258159
268159
278159
288159
298159
308159
318159

Milpitas weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 43°3.68.99.74.2
Feb59° / 45°3.88.910.64.7
Mar62° / 47°2.99.111.75.6
Apr65° / 48°1.65.712.96.8
May70° / 52°0.83.4147.9
Jun76° / 55°0.20.914.59.1
Jul80° / 58°0.00.214.39.0
Aug81° / 59°0.00.213.48.9
Sep79° / 58°0.10.412.39.0
Oct73° / 54°0.92.9118.5
Nov63° / 48°1.75.7106.3
Dec57° / 43°3.38.99.54.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 89% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7937
8946
9946
10937
11937
12937
13937
14946
15946
16946
17946
18946
19955
20955
21955
22955
23955
24955
25955
26964
27964
28964
29964
30964
31964

Chance of precipitation in August

Any precipitation

Milpitas gets around 0.0 in of rain over 0.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
144524
244524
344524
444533
544533
644533
744533
844533
944533
1044533
1144533
1244533
1343543
1443534
1543534
1643534
1743534
1842544
1942544
2042544
2142544
2242535
2342535
2443525
2543525
2643525
2744515
2845505
2945496
3047486
3148465

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:15 AM to 5:41 AM, and sunset from 7:12 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:157:12
213.95:167:11
313.95:177:10
413.95:187:09
513.85:197:08
613.85:207:07
713.85:207:06
813.75:217:05
913.75:227:04
1013.75:237:03
1113.65:247:01
1213.65:257:00
1313.65:266:59
1413.55:266:58
1513.55:276:57
1613.55:286:55
1713.45:296:54
1813.45:306:53
1913.35:316:51
2013.35:326:50
2113.35:336:49
2213.25:336:47
2313.25:346:46
2413.25:356:44
2513.15:366:43
2613.15:376:42
2713.05:386:40
2813.05:396:39
2913.05:396:37
3012.95:406:36
3112.95:416:34

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 7.11 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.96 kWh/m² in June across the year — August's 7.11 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.4Intense
57.4Intense
67.4Intense
77.4Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.1Intense
177.1Intense
187.1Intense
197.0Intense
207.0Intense
217.0Intense
226.9Intense
236.9Intense
246.9Intense
256.8Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.6Intense
Planning a trip in August

Is August a good time to visit Milpitas?

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

8.9
Sightseeing
4th-best month of the year
9.0
Beach & pool
1st-best month of the year

August is one of the better times to visit Milpitas for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Milpitas in August

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

In August, Milpitas sees daytime highs around 81°F and nights near 59°F. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Milpitas in August

The nearest coast averages about 59°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 mi away) is warmest in August at about 59°F and coldest in April near 54°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan54Bracing
Feb54Bracing
Mar54Bracing
Apr54Bracing
May54Bracing
Jun55Bracing
Jul57Bracing
Aug59Bracing
Sep59Bracing
Oct58Bracing
Nov56Bracing
Dec55Bracing

UV index in Milpitas in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Milpitas peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Moderate

Air quality in Milpitas in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Milpitas is worst in August — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1824 µg/m³Jun 1110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar16Moderate
Apr12Moderate
May10Good
Jun10Good
Jul11Good
Aug25Moderate
Sep17Moderate
Oct20Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Milpitas?

Milpitas sits at 37.4°N, 121.9°W, 16 ft above sea level, in United States. The nearest listed city is Santa Clara, 5.6 mi away.

Topography around Milpitas

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Milpitas.

Within 2 miles, the terrain around Milpitas has only modest variations in elevation — a maximum elevation change of 249 ft around an average of 39 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,330 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.

The land around Milpitas is covered by artificial surfaces (74%) within 2 miles, artificial surfaces (43%) and grassland (28%) within 10 miles, and water (28%), grassland (27%) and trees (25%) within 50 miles.

2 miles
249 ft
10 miles
3,330 ft
50 miles
4,452 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Santa Clara 5.6 mi · Alum Rock 6.2 mi · San Jose 6.2 mi · Sunnyvale 8.1 mi · Fremont 9.3 mi · Cupertino 9.9 mi · Campbell 9.9 mi · Newark 9.9 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Milpitas (37.4283°, -121.9066°, elevation 16 ft), 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).