Oakley in Spring

In spring (March, April and May), Oakley sees average daytime highs around 71°F and overnight lows near 51°F, with 4.6 in of rain over about 16 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 63°F in early March to 78°F by late May. The sky is clear or mostly clear about 48% of the time across spring, and the air most often feels dry.

Spring is Oakley's 3rd-best season to visit on our travel score. For the whole year in context, see Oakley's year-round climate.

Avg daytime high: 71°F; 3rd-warmest season
Avg overnight low: 51°F
Rainfall: 4.6 in; 16 wet days
Avg wind: 7 mph
Travel score: 7.5; 3rd-best season
Months: Mar · Apr · May

← Winter Oakley year-round climate Summer →

Spring Summer Fall Winter

Temperature in Oakley in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 63°F in early March to 78°F by late May.

A typical spring day in Oakley reaches about 71°F and drops to 51°F overnight. The warmest of the three months is May, the coolest March.

Oakley weather by month

How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

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 Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time across spring.

Chance of precipitation in Spring

Any precipitation

Oakley gets around 4.6 in of rain over 16 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Spring

Winds average 7 mph across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 06 min in early March to 14 h 24 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 6.1 kWh/m².

Planning a trip in spring

Is spring a good time to visit Oakley?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

7.5

Sightseeing

3rd-best month of the year

5.0

Beach & pool

3rd-best month of the year

spring is one of the better times to visit Oakley for general sightseeing.

What to pack for Oakley in Spring

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

In spring, Oakley sees daytime highs around 71°F and nights near 51°F. Pack sun protection. Worth having: light clothes and rain gear. About 16 days see rain.

sun protectionlight clothesrain gear

UV index in Oakley in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. 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 Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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

← Winter Oakley year-round climate Summer →

Spring 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.