30YearWeather
San Diego in April
San Diego weather in April - United States
🌤️Mild & Comfortable

San Diego Weather in April

Plan your April trip to San Diego, United States. Based on 30 years of NASA data, expect temperatures of 19°C (high) to 12°C (low), with 7% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 16°C in April. Great conditions with only 0 rainy days expected.

Avg High
19°C

Hottest around day 30

Avg Low
12°C

Coolest around day 1

Rainy Days
0days

7% avg rain chance

Sunshine
8hrs/day

Spring season

Sea Temperature in April

Coastal Waters(Ocean)

16.3°C

Monthly Average

Water Feel
💧Refreshing

Consider a wetsuit for extended swimming

Swim Rating
🏄Cool, wetsuits recommended

Based on average sea surface temperature

Body of Water
Coastal Waters

Ocean

San Diego coastline

San Diego April Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Connect

The most common area code for San Diego ...

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for San Diego

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected
70/ 100
Traffic Index

Popular destination

Peak Daily Arrivals

0

slots per day

Peak

May

Low

Nov

Monthly Traffic Distribution

296
Jan
307
Feb
335
Mar
382
Apr
447
May
341
Jun
328
Jul
357
Aug
334
Sep
312
Oct
281
Nov
316
Dec
Traffic Level
Low Season

Key Connections

San Francisco (SFO)
Las Vegas McCarran (LAS)
Phoenix Sky Harbor (PHX)
Denver (DEN)
San Jose Norman Y. Mineta (SJC)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is April a Good Time to Visit San Diego?

👍Very good conditions overall
Short Answer

San Diego's April delivers on its reputation: 19°C, 7% rain, 11.1h sunshine. The trade-off? Peak crowds and prices at 85% capacity.

Decision Factors

Peak tourist season

85% of annual peak - expect crowds and high prices

Excellent dry conditions

Only 7% rain probability - ideal for outdoor activities

Plenty of sunshine

11.1h of sunshine daily

Exceptional dining scene

34 Michelin-listed restaurants

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 19.1°C temperatures and low 7% rain risk

  • 👴
    Elderly travelers

    Comfortable 19.1°C temperature range with manageable humidity

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 19.1°C, 7% rain chance

  • 📸
    Photographers

    11.1h sunshine, 56% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only 16.3°C - too cold for comfortable swimming

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

900 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,San Diego in April averages 19°C with 7% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: San Diego in April

What are the temperatures in San Diego in April?

Daytime highs average 19°C, nights drop to 12°C. Temperatures remain fairly consistent.

How many rainy days in San Diego in April?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in San Diego in April?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is April peak season in San Diego?

This is typically peak season with higher prices. Book 2-3 months ahead.