San Diego in Spring

In spring (March, April and May), San Diego sees average daytime highs around 29°C and overnight lows near 22°C, with 1168 mm of rain over about 69 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Across spring, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 13% of the time across spring, and the air most often feels muggy.

Spring is San Diego's 2nd-best season to visit on our travel score. For the whole year in context, see San Diego's year-round climate.

Avg daytime high: 29°C; 3rd-warmest season
Avg overnight low: 22°C
Rainfall: 1168 mm; 69 wet days
Avg wind: 5 km/h
Travel score: 3.6; 2nd-best season
Months: Mar · Apr · May

← Winter San Diego year-round climate Summer →

Spring Summer Fall Winter

Temperature in San Diego in Spring

Average highAverage lowShaded bands: 10–90% of days

Across spring, daytime highs hold fairly steady around 29°C.

A typical spring day in San Diego reaches about 29°C and drops to 22°C overnight. The warmest of the three months is March, the coolest March.

How spring really feels in San Diego

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Diego 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 (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 20°	53	7	11.5	5.8
Feb	30° / 21°	74	8	11.7	5.5
Mar	30° / 21°	189	14.5	11.9	4.7
Apr	29° / 22°	410	24.2	12.2	3.4
May	29° / 23°	569	30.6	12.5	2.7
Jun	30° / 22°	385	28.2	12.6	2.8
Jul	30° / 22°	260	27.3	12.5	2.7
Aug	30° / 22°	379	28.8	12.3	2.6
Sep	30° / 22°	471	29.4	12.1	2.6
Oct	29° / 22°	508	30	11.8	2.9
Nov	28° / 21°	355	26.3	11.5	3.5
Dec	29° / 21°	130	16	11.4	4.8

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time across spring.

Chance of precipitation in Spring

Any precipitation

San Diego gets around 1168 mm of rain over 69 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Spring

Winds average 5 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 48 min in early March to 12 h 36 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 5.2 kWh/m².

Planning a trip in spring

Is spring a good time to visit San Diego?

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.

3.6

Sightseeing

2nd-best month of the year

4.8

Beach & pool

2nd-best month of the year

spring is a weaker month for outdoor sightseeing in San Diego.

What to pack for San Diego in Spring

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

In spring, San Diego sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 69 days see rain.

light clothesrain gearsun protection

UV index in San Diego in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Diego peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	13	13	14	12	13	12	13	13	12	10	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	13	Extreme
Apr	14	Extreme
May	12	Extreme
Jun	13	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	10	Extreme
Dec	10	Very high

Air quality in San Diego 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 San Diego is worst in March — around 34 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 9 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)	11	19	34	23	20	21	21	17	13	12	10	9
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	11	Good
Feb	19	Moderate
Mar	34	Moderate
Apr	23	Moderate
May	20	Moderate
Jun	21	Moderate
Jul	21	Moderate
Aug	17	Moderate
Sep	13	Moderate
Oct	12	Good
Nov	10	Good
Dec	9	Good

Location & terrain

Where is San Diego?

San Diego sits at 10.3°N, 73.2°W, 180 m above sea level, in Colombia. The nearest listed city is Valledupar, 17 km away.

Topography around San Diego

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Diego.

Within 3 km, the terrain around San Diego has only modest variations in elevation — a maximum elevation change of 215 m around an average of 170 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,747 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,632 m.

The land around San Diego is covered by grassland (49%) and trees (40%) within 3 km, trees (55%) and grassland (38%) within 16 km, and trees (64%) and grassland (31%) within 80 km.

3 km

215 m

grassland 49%

16 km

1,747 m

trees 55%

80 km

5,632 m

trees 64%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← Winter San Diego year-round climate Summer →

Spring weather nearby: Valledupar 17 km · Agustín Codazzi 34 km · Villanueva 38 km · San Juan del Cesar 52 km · Becerril 71 km · Fonseca 71 km · Machiques 75 km · Barrancas 81 km

Colombia travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type A / B; 120 / 240 V · 60 Hz
Prices: ≈ 38% of US; price level, 2025
GDP per capita: $8,562; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 74%; of population, 2024
Homicide rate: 24.9; per 100k, 2023
Road deaths: 15.4; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 480
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 San Diego (10.3338°, -73.1805°, elevation 180 m), 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.