Clearlake weather in June

In June, Clearlake sees average daytime highs of 80°F and overnight lows near 58°F, with 0.5 in of rain across 2.1 wet days and about 14.7 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 76°F in the first days to 84°F by the end. The sky is clear or mostly clear about 74% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of June to 14 h 42 min by month's end. Set against the rest of the year, June is Clearlake's 4th-clearest and 2nd-windiest month. For the whole year in context, see Clearlake's year-round climate.

Daytime high
80°
4th warmest
Overnight low
58°
9th coldest
Rainfall
0.5 in
2.1 wet days
Daylight
14 h 42 min
4:49 AM – 7:32 PM
Cloud cover
24%
4th clearest
Wind
5 mph
2nd windiest
Solar energy
8.08 kWh/m²
Travel score
8.2
out of 10

Clearlake is city in Lake County, California, United States.

Density
554/km²
people per km²
Founded
1980

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 76°F in the first days to 84°F by the end.

A typical June day in Clearlake reaches about 80°F in the afternoon and slips back to 58°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 90°F. Set against its neighbours, June runs about 9°F warmer than May and about 6°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17655
27655
37655
47755
57756
67756
77856
87856
97856
107856
117957
127957
137957
148058
158058
168058
178158
188158
198159
208259
218259
228260
238360
248360
258360
268361
278461
288461
298461
308462

Clearlake weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan53° / 38°6.110.91.49.62.8
Feb55° / 40°5.99.41.710.53.6
Mar59° / 42°4.710.41.411.74.6
Apr64° / 45°2.16.50.3136.2
May71° / 51°1.44.7014.17.8
Jun80° / 58°0.52.1014.78.2
Jul87° / 64°0.00.2014.56.6
Aug86° / 63°0.10.4013.56.7
Sep82° / 59°0.21012.38.2
Oct72° / 52°1.63.80118.2
Nov60° / 43°3.27.10.29.95.1
Dec52° / 38°6.210.50.89.32.8

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 9% of June, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17327
27426
37426
47426
57624
67624
77723
87822
97921
108020
118020
128119
138317
148317
158416
168515
178515
188614
198614
208713
218812
228812
238812
248911
259010
269010
27919
28919
29928
30928

Chance of precipitation in June

Any precipitation

Clearlake gets around 0.5 in of rain over 2.1 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 10% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
110
210
39
49
59
68
78
88
98
107
117
127
136
146
156
166
176
186
196
206
216
226
236
246
255
265
275
285
295
304

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1946
2946
3946
4946
5937
6937
7937
8937
9946
10946
11946
12946
13946
14946
15946
16937
17937
18937
19928
20928
21928
22919
23919
249010
259010
269010
278911
288911
298812
308812

Wind in June

Winds average 5 mph in June.

Across June, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
284calm
294calm
304calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 30 min at the start of June to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:52 AM to 4:52 AM, and sunset from 7:24 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:527:24
214.54:527:24
314.64:527:25
414.64:517:26
514.64:517:26
614.64:517:27
714.64:507:28
814.64:507:28
914.74:507:29
1014.74:507:29
1114.74:507:30
1214.74:497:30
1314.74:497:31
1414.74:497:31
1514.74:497:32
1614.74:497:32
1714.74:497:33
1814.74:497:33
1914.74:497:33
2014.74:507:34
2114.74:507:34
2214.74:507:34
2314.74:507:34
2414.74:507:34
2514.74:517:35
2614.74:517:35
2714.74:517:35
2814.74:527:35
2914.74:527:35
3014.74:527:35

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 8.08 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 8.26 kWh/m² in July across the year — June's 8.08 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
17.7Intense
27.7Intense
37.7Intense
47.8Intense
57.8Intense
67.8Intense
77.9Intense
87.9Intense
98.0Intense
108.0Intense
118.0Intense
128.1Intense
138.1Intense
148.1Intense
158.1Intense
168.2Intense
178.2Intense
188.2Intense
198.2Intense
208.2Intense
218.2Intense
228.3Intense
238.3Intense
248.3Intense
258.3Intense
268.3Intense
278.3Intense
288.3Intense
298.3Intense
308.3Intense
Planning a trip in June

Hazard calendar for Clearlake

In seasonPeak

None of Clearlake's seasonal hazards are active in June. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Clearlake's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Clearlake?

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

8.2
Sightseeing
1st-best month of the year
8.3
Beach & pool
4th-best month of the year

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

What to pack for Clearlake in June

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

In June, Clearlake sees daytime highs around 80°F and nights near 58°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Clearlake in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Clearlake 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
Feb3Moderate
Mar5Moderate
Apr6High
May9Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Low

Air quality in Clearlake in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Clearlake is worst in September — around 31 µg/m³ PM2.5 (moderate), about 5.8× the cleanest month (June, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1031 µg/m³Jun 106 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar9Good
Apr8Good
May6Good
Jun5Good
Jul14Moderate
Aug29Moderate
Sep31Moderate
Oct14Moderate
Nov8Good
Dec6Good
Location & terrain

Where is Clearlake?

Clearlake sits at 39.0°N, 122.6°W, 1,417 ft above sea level, in United States. The nearest listed city is Windsor, 30 mi away.

Topography around Clearlake

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

Within 2 miles, the terrain around Clearlake has significant variations in elevation — a maximum elevation change of 853 ft around an average of 1,493 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,409 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,982 ft.

The land around Clearlake is covered by trees (39%) and grassland (28%) within 2 miles, trees (52%) and grassland (38%) within 10 miles, and trees (52%) and grassland (30%) within 50 miles.

2 miles
853 ft
10 miles
3,409 ft
50 miles
6,982 ft
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Windsor 30 mi · Ukiah 34 mi · Santa Rosa 36 mi · Rohnert Park 43 mi · Agua Caliente 45 mi · Napa 49 mi · Woodland 50 mi · Petaluma 50 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 Clearlake (38.9582°, -122.6264°, elevation 1,417 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).