Loma Linda weather in August

In August, Loma Linda sees average daytime highs of 89°F and overnight lows near 66°F, with 0.4 in of rain across 2.8 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 89°F through the month. The sky is clear or mostly clear about 88% of the time in August, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Loma Linda's 1st-clearest and 12th-windiest month. For the whole year in context, see Loma Linda's year-round climate.

Daytime high
89°
1st warmest
Overnight low
66°
12th coldest
Rainfall
0.4 in
2.8 wet days
Daylight
13 h 18 min
5:15 AM – 6:32 PM
Cloud cover
14%
1st clearest
Wind
3 mph
12th windiest
Solar energy
7.28 kWh/m²
Travel score
5.5
out of 10

Loma Linda is city in San Bernardino County, California, United States.

Density
1,235/km²
people per km²
Founded
1970

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 89°F through the month.

A typical August day in Loma Linda reaches about 89°F in the afternoon and slips back to 66°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 95°F. Set against its neighbours, August runs on par with July and about 4°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
18866
28866
38866
48866
58866
68866
78966
88966
98966
108966
118966
128966
138966
148966
158966
168966
178966
188966
198966
208966
218966
228966
238966
248966
258966
268966
278966
288966
298966
308965
318865

Loma Linda weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan60° / 41°2.96.10.6105.5
Feb61° / 42°3.66.81.110.75.5
Mar64° / 45°2.26.20.811.76.6
Apr69° / 48°1.13.90.312.87.7
May74° / 53°0.52.6013.78.6
Jun82° / 59°0.10.7014.28.2
Jul87° / 65°0.52.60146.0
Aug89° / 66°0.42.8013.35.5
Sep85° / 62°0.31.8012.27.0
Oct77° / 54°0.72.4011.18.7
Nov67° / 46°1.03.10.210.27.7
Dec60° / 41°2.250.49.85.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 88% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 7% of August, with mostly cloudy or overcast conditions the remaining 6%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
2928
3928
4928
5937
6937
7946
8946
9946
10946
11964
12964
13964
14964
15964
16964
17964
18964
19964
20955
21955
22955
23955
24946
25946
26946
27946
28946
29937
30937
31937

Chance of precipitation in August

Any precipitation

Loma Linda gets around 0.4 in of rain over 2.8 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 10% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
19
29
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
199
209
219
229
239
249
259
269
279
289
299
3010
319

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14933162
25032162
35032162
45131162
55131162
65330152
75430151
85430151
95430151
105529151
115529151
125529151
135529151
145628151
155628151
165628151
175728141
185728141
195629141
205729131
215828131
225928121
235928121
246028111
256028111
266127111
276028111
286028111
296028111
306128101
316128101

Wind in August

Winds average 3 mph in August, the calmest month.

Across August, daily wind ranges from about 3 mph on the calmest days to 3 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:04 AM to 5:26 AM, and sunset from 6:47 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:046:47
213.75:046:46
313.75:056:45
413.65:066:44
513.65:076:43
613.65:076:42
713.65:086:41
813.55:096:40
913.55:106:39
1013.55:106:38
1113.45:116:37
1213.45:126:36
1313.45:136:35
1413.35:136:34
1513.35:146:33
1613.35:156:32
1713.25:156:30
1813.25:166:29
1913.25:176:28
2013.25:186:27
2113.15:186:26
2213.15:196:24
2313.15:206:23
2413.05:216:22
2513.05:216:20
2613.05:226:19
2712.95:236:18
2812.95:246:17
2912.85:246:15
3012.85:256:14
3112.85:266:12

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 7.28 kWh/m².

For context, solar energy here swings from a low near 3.02 kWh/m² to a high of 8.25 kWh/m² in June across the year — August's 7.28 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.3Intense
157.3Intense
167.3Intense
177.3Intense
187.2Intense
197.2Intense
207.2Intense
217.1Intense
227.1Intense
237.1Intense
247.0Intense
257.0Intense
267.0Intense
276.9Intense
286.9Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in August

Is August a good time to visit Loma Linda?

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

5.5
Sightseeing
10th-best month of the year
8.4
Beach & pool
4th-best month of the year

August is a reasonable time to visit Loma Linda for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Loma Linda in August

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

In August, Loma Linda sees daytime highs around 89°F and nights near 66°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Loma Linda in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Loma Linda peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Loma Linda 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 Loma Linda is worst in September — around 40 µg/m³ PM2.5 (poor), about 5.4× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Dec 207 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr10Good
May8Good
Jun19Moderate
Jul12Moderate
Aug20Moderate
Sep40Poor
Oct10Good
Nov8Good
Dec7Good
Location & terrain

Where is Loma Linda?

Loma Linda sits at 34.0°N, 117.3°W, 1,165 ft above sea level, in United States. The nearest listed city is Colton, 3.7 mi away.

Topography around Loma Linda

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

Within 2 miles, the terrain around Loma Linda has significant variations in elevation — a maximum elevation change of 942 ft around an average of 1,224 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 3,983 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 11,421 ft.

The land around Loma Linda is covered by artificial surfaces (50%) and grassland (28%) within 2 miles, artificial surfaces (46%) and grassland (22%) within 10 miles, and shrubs (29%) within 50 miles.

2 miles
942 ft
10 miles
3,983 ft
50 miles
11,421 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Colton 3.7 mi · San Bernardino 4.3 mi · Redlands 4.3 mi · Highland 6.2 mi · Rialto 7.5 mi · Moreno Valley 8.1 mi · Bloomington 8.1 mi · Rubidoux 9.3 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 Loma Linda (34.0483°, -117.2612°, elevation 1,165 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. 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).