Oakley weather in June

In June, Oakley sees average daytime highs of 82°F and overnight lows near 57°F, with 0.1 in of rain across 0.7 wet days and about 14.6 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 79°F in the first days to 83°F by the end. The sky is clear or mostly clear about 80% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of June to 14 h 36 min by month's end. Set against the rest of the year, June is Oakley's 4th-clearest and 1st-windiest month. For the whole year in context, see Oakley's year-round climate.

Daytime high: 82°; 4th warmest
Overnight low: 57°; 9th coldest
Rainfall: 0.1 in; 0.7 wet days
Daylight: 14 h 36 min; 4:48 AM – 7:26 PM
Cloud cover: 20%; 4th clearest
Wind: 8 mph; 1st windiest
Solar energy: 8.13 kWh/m²
Travel score: 8.3; out of 10

Oakley is city in Contra Costa County, California, United States.

Density: 950/km²; people per km²
Founded: 1999

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

← May Oakley year-round climate July →Best places to visit in June

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 79°F in the first days to 83°F by the end.

A typical June day in Oakley reaches about 82°F in the afternoon and slips back to 57°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 92°F. Set against its neighbours, June runs about 5°F warmer than May and about 2°F cooler than July.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	79	79	79	80	80	80	80	80	81	81	81	81	82	82	82	82	82	82	83	83	83	83	83	83	83	83	83	83	83	84
Avg low (°F)	56	56	56	56	56	56	56	57	57	57	57	57	57	57	57	57	58	58	58	58	58	58	58	58	58	58	58	58	58	58

	Avg high (°F)	Avg low (°F)
1	79	56
2	79	56
3	79	56
4	80	56
5	80	56
6	80	56
7	80	56
8	80	57
9	81	57
10	81	57
11	81	57
12	81	57
13	82	57
14	82	57
15	82	57
16	82	57
17	82	58
18	82	58
19	83	58
20	83	58
21	83	58
22	83	58
23	83	58
24	83	58
25	83	58
26	83	58
27	83	58
28	83	58
29	83	58
30	84	58

Oakley 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.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	57° / 43°	3.7	9	9.7	4.2
Feb	61° / 45°	3.5	8.8	10.5	5.2
Mar	66° / 48°	2.7	8.3	11.7	6.4
Apr	70° / 50°	1.2	4.7	13	7.6
May	76° / 54°	0.6	3	14	8.5
Jun	82° / 57°	0.1	0.7	14.6	8.3
Jul	84° / 59°	0.0	0.2	14.4	7.7
Aug	84° / 59°	0.1	0.2	13.5	7.7
Sep	82° / 58°	0.0	0.3	12.3	8.3
Oct	76° / 54°	0.9	2.8	11	8.6
Nov	65° / 47°	1.8	5.4	9.9	6.6
Dec	57° / 43°	3.4	8.4	9.4	4.3

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 80% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 7% of June, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	79	79	81	81	81	81	82	83	83	85	85	86	87	87	88	89	89	90	90	91	91	91	91	91	91	91	92	92	93	93
Cloudier (%)	21	21	19	19	19	19	18	17	17	15	15	14	13	13	12	11	11	10	10	9	9	9	9	9	9	9	8	8	7	7

	Clearer (%)	Cloudier (%)
1	79	21
2	79	21
3	81	19
4	81	19
5	81	19
6	81	19
7	82	18
8	83	17
9	83	17
10	85	15
11	85	15
12	86	14
13	87	13
14	87	13
15	88	12
16	89	11
17	89	11
18	90	10
19	90	10
20	91	9
21	91	9
22	91	9
23	91	9
24	91	9
25	91	9
26	91	9
27	92	8
28	92	8
29	93	7
30	93	7

Chance of precipitation in June

Any precipitation

Oakley gets around 0.1 in of rain over 0.7 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 3% and peaks near 5% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	5	5	5	4	4	4	3	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1

	Rain chance (%)
1	5
2	5
3	5
4	4
5	4
6	4
7	3
8	3
9	3
10	3
11	3
12	3
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	1
26	1
27	1
28	1
29	1
30	1

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	88	88	88	88	88	88	88	88	88	88	88	88	87	87	86	86	85	84	82	81	79	77	76	74	73	71	70	69	67	66
Comfortable (%)	12	12	12	12	12	12	12	12	12	12	12	12	13	13	14	14	15	16	18	19	20	22	23	25	26	28	29	30	32	33
Humid (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	88	12	0
2	88	12	0
3	88	12	0
4	88	12	0
5	88	12	0
6	88	12	0
7	88	12	0
8	88	12	0
9	88	12	0
10	88	12	0
11	88	12	0
12	88	12	0
13	87	13	0
14	87	13	0
15	86	14	0
16	86	14	0
17	85	15	0
18	84	16	0
19	82	18	0
20	81	19	0
21	79	20	1
22	77	22	1
23	76	23	1
24	74	25	1
25	73	26	1
26	71	28	1
27	70	29	1
28	69	30	1
29	67	32	1
30	66	33	1

Wind in June

Winds average 8 mph in June, the windiest month of the year.

Across June, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	8	light breeze
2	8	light breeze
3	8	light breeze
4	8	light breeze
5	8	light breeze
6	8	light breeze
7	8	light breeze
8	8	light breeze
9	8	light breeze
10	8	light breeze
11	8	light breeze
12	8	light breeze
13	8	light breeze
14	8	light breeze
15	8	light breeze
16	8	light breeze
17	8	light breeze
18	8	light breeze
19	8	light breeze
20	8	light breeze
21	8	light breeze
22	8	light breeze
23	8	light breeze
24	8	light breeze
25	8	light breeze
26	8	light breeze
27	8	light breeze
28	8	light breeze
29	8	light breeze
30	8	light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 24 min at the start of June to 14 h 36 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 4:51 AM to 4:52 AM, and sunset from 7:17 PM to 7:28 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	14.4	14.5	14.5	14.5	14.5	14.5	14.5	14.5	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6	14.6
Sunrise (AM)	4:51	4:51	4:51	4:50	4:50	4:50	4:49	4:49	4:49	4:49	4:49	4:49	4:49	4:48	4:48	4:48	4:49	4:49	4:49	4:49	4:49	4:49	4:49	4:50	4:50	4:50	4:50	4:51	4:51	4:52
Sunset (PM)	7:17	7:18	7:19	7:19	7:20	7:21	7:21	7:22	7:22	7:23	7:23	7:24	7:24	7:25	7:25	7:26	7:26	7:26	7:27	7:27	7:27	7:28	7:28	7:28	7:28	7:28	7:28	7:28	7:28	7:28

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.4	4:51	7:17
2	14.5	4:51	7:18
3	14.5	4:51	7:19
4	14.5	4:50	7:19
5	14.5	4:50	7:20
6	14.5	4:50	7:21
7	14.5	4:49	7:21
8	14.5	4:49	7:22
9	14.6	4:49	7:22
10	14.6	4:49	7:23
11	14.6	4:49	7:23
12	14.6	4:49	7:24
13	14.6	4:49	7:24
14	14.6	4:48	7:25
15	14.6	4:48	7:25
16	14.6	4:48	7:26
17	14.6	4:49	7:26
18	14.6	4:49	7:26
19	14.6	4:49	7:27
20	14.6	4:49	7:27
21	14.6	4:49	7:27
22	14.6	4:49	7:28
23	14.6	4:49	7:28
24	14.6	4:50	7:28
25	14.6	4:50	7:28
26	14.6	4:50	7:28
27	14.6	4:50	7:28
28	14.6	4:51	7:28
29	14.6	4:51	7:28
30	14.6	4:52	7:28

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 8.13 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 8.13 kWh/m² in June across the year — June's 8.13 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	7.8	7.8	7.8	7.9	7.9	7.9	8.0	8.0	8.0	8.1	8.1	8.1	8.1	8.2	8.2	8.2	8.2	8.2	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3	8.3
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	7.8	Intense
2	7.8	Intense
3	7.8	Intense
4	7.9	Intense
5	7.9	Intense
6	7.9	Intense
7	8.0	Intense
8	8.0	Intense
9	8.0	Intense
10	8.1	Intense
11	8.1	Intense
12	8.1	Intense
13	8.1	Intense
14	8.2	Intense
15	8.2	Intense
16	8.2	Intense
17	8.2	Intense
18	8.2	Intense
19	8.3	Intense
20	8.3	Intense
21	8.3	Intense
22	8.3	Intense
23	8.3	Intense
24	8.3	Intense
25	8.3	Intense
26	8.3	Intense
27	8.3	Intense
28	8.3	Intense
29	8.3	Intense
30	8.3	Intense

Planning a trip in June

Is June a good time to visit Oakley?

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

8.3

Sightseeing

3rd-best month of the year

8.9

Beach & pool

4th-best month of the year

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

What to pack for Oakley in June

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

In June, Oakley sees daytime highs around 82°F and nights near 57°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Oakley 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 Oakley peaks around June 22 at about 10 (very high) — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	4	4	6	8	10	10	10	6	5	2	2
Level	Moderate	Moderate	Moderate	High	Very high	Very high	Very high	Very high	High	High	Moderate	Low

	UV index (midday)	Level
Jan	2	Moderate
Feb	4	Moderate
Mar	4	Moderate
Apr	6	High
May	8	Very high
Jun	10	Very high
Jul	10	Very high
Aug	10	Very high
Sep	6	High
Oct	5	High
Nov	2	Moderate
Dec	2	Low

Air quality in Oakley 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 Oakley is worst in August — around 27 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (June, 8 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	15	14	15	12	9	8	11	27	23	17	19	14
Level	Moderate	Moderate	Moderate	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	14	Moderate
Mar	15	Moderate
Apr	12	Good
May	9	Good
Jun	8	Good
Jul	11	Good
Aug	27	Moderate
Sep	23	Moderate
Oct	17	Moderate
Nov	19	Moderate
Dec	14	Moderate

Location & terrain

Where is Oakley?

Oakley sits at 38.0°N, 121.7°W, 20 ft above sea level, in United States. The nearest listed city is Brentwood, 4.3 mi away.

Topography around Oakley

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

Within 2 miles, the terrain around Oakley has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 30 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,857 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.

The land around Oakley is covered by artificial surfaces (38%) within 2 miles, grassland (35%) and cropland (26%) within 10 miles, and grassland (35%) and trees (21%) within 50 miles.

2 miles

125 ft

artificial surfaces 38%

10 miles

1,857 ft

grassland 35%

50 miles

4,452 ft

grassland 35%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← May Oakley year-round climate July →Best places to visit in June

June weather nearby: Brentwood 4.3 mi · Antioch 5.0 mi · Pittsburg 9.3 mi · Bay Point 14 mi · Concord 17 mi · Pleasant Hill 19 mi · Danville 20 mi · Walnut Creek 21 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

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 Oakley (37.9974°, -121.7125°, elevation 20 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).

	Avg high (°F)	Avg low (°F)
1	79	56
2	79	56
3	79	56
4	80	56
5	80	56
6	80	56
7	80	56
8	80	57
9	81	57
10	81	57
11	81	57
12	81	57
13	82	57
14	82	57
15	82	57
16	82	57
17	82	58
18	82	58
19	83	58
20	83	58
21	83	58
22	83	58
23	83	58
24	83	58
25	83	58
26	83	58
27	83	58
28	83	58
29	83	58
30	84	58

	Clearer (%)	Cloudier (%)
1	79	21
2	79	21
3	81	19
4	81	19
5	81	19
6	81	19
7	82	18
8	83	17
9	83	17
10	85	15
11	85	15
12	86	14
13	87	13
14	87	13
15	88	12
16	89	11
17	89	11
18	90	10
19	90	10
20	91	9
21	91	9
22	91	9
23	91	9
24	91	9
25	91	9
26	91	9
27	92	8
28	92	8
29	93	7
30	93	7

	Rain chance (%)
1	5
2	5
3	5
4	4
5	4
6	4
7	3
8	3
9	3
10	3
11	3
12	3
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	1
26	1
27	1
28	1
29	1
30	1

	Dry (%)	Comfortable (%)	Humid (%)
1	88	12	0
2	88	12	0
3	88	12	0
4	88	12	0
5	88	12	0
6	88	12	0
7	88	12	0
8	88	12	0
9	88	12	0
10	88	12	0
11	88	12	0
12	88	12	0
13	87	13	0
14	87	13	0
15	86	14	0
16	86	14	0
17	85	15	0
18	84	16	0
19	82	18	0
20	81	19	0
21	79	20	1
22	77	22	1
23	76	23	1
24	74	25	1
25	73	26	1
26	71	28	1
27	70	29	1
28	69	30	1
29	67	32	1
30	66	33	1

	Avg high (°F)	Avg low (°F)
1	79	56
2	79	56
3	79	56
4	80	56
5	80	56
6	80	56
7	80	56
8	80	57
9	81	57
10	81	57
11	81	57
12	81	57
13	82	57
14	82	57
15	82	57
16	82	57
17	82	58
18	82	58
19	83	58
20	83	58
21	83	58
22	83	58
23	83	58
24	83	58
25	83	58
26	83	58
27	83	58
28	83	58
29	83	58
30	84	58

	Clearer (%)	Cloudier (%)
1	79	21
2	79	21
3	81	19
4	81	19
5	81	19
6	81	19
7	82	18
8	83	17
9	83	17
10	85	15
11	85	15
12	86	14
13	87	13
14	87	13
15	88	12
16	89	11
17	89	11
18	90	10
19	90	10
20	91	9
21	91	9
22	91	9
23	91	9
24	91	9
25	91	9
26	91	9
27	92	8
28	92	8
29	93	7
30	93	7

	Rain chance (%)
1	5
2	5
3	5
4	4
5	4
6	4
7	3
8	3
9	3
10	3
11	3
12	3
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	1
26	1
27	1
28	1
29	1
30	1

	Dry (%)	Comfortable (%)	Humid (%)
1	88	12	0
2	88	12	0
3	88	12	0
4	88	12	0
5	88	12	0
6	88	12	0
7	88	12	0
8	88	12	0
9	88	12	0
10	88	12	0
11	88	12	0
12	88	12	0
13	87	13	0
14	87	13	0
15	86	14	0
16	86	14	0
17	85	15	0
18	84	16	0
19	82	18	0
20	81	19	0
21	79	20	1
22	77	22	1
23	76	23	1
24	74	25	1
25	73	26	1
26	71	28	1
27	70	29	1
28	69	30	1
29	67	32	1
30	66	33	1

	Avg high (°F)	Avg low (°F)
1	79	56
2	79	56
3	79	56
4	80	56
5	80	56
6	80	56
7	80	56
8	80	57
9	81	57
10	81	57
11	81	57
12	81	57
13	82	57
14	82	57
15	82	57
16	82	57
17	82	58
18	82	58
19	83	58
20	83	58
21	83	58
22	83	58
23	83	58
24	83	58
25	83	58
26	83	58
27	83	58
28	83	58
29	83	58
30	84	58

	Clearer (%)	Cloudier (%)
1	79	21
2	79	21
3	81	19
4	81	19
5	81	19
6	81	19
7	82	18
8	83	17
9	83	17
10	85	15
11	85	15
12	86	14
13	87	13
14	87	13
15	88	12
16	89	11
17	89	11
18	90	10
19	90	10
20	91	9
21	91	9
22	91	9
23	91	9
24	91	9
25	91	9
26	91	9
27	92	8
28	92	8
29	93	7
30	93	7

	Rain chance (%)
1	5
2	5
3	5
4	4
5	4
6	4
7	3
8	3
9	3
10	3
11	3
12	3
13	2
14	2
15	2
16	2
17	2
18	2
19	2
20	2
21	2
22	2
23	2
24	2
25	1
26	1
27	1
28	1
29	1
30	1

	Dry (%)	Comfortable (%)	Humid (%)
1	88	12	0
2	88	12	0
3	88	12	0
4	88	12	0
5	88	12	0
6	88	12	0
7	88	12	0
8	88	12	0
9	88	12	0
10	88	12	0
11	88	12	0
12	88	12	0
13	87	13	0
14	87	13	0
15	86	14	0
16	86	14	0
17	85	15	0
18	84	16	0
19	82	18	0
20	81	19	0
21	79	20	1
22	77	22	1
23	76	23	1
24	74	25	1
25	73	26	1
26	71	28	1
27	70	29	1
28	69	30	1
29	67	32	1
30	66	33	1