30YearWeather
San Diego, August 27
San Diego street view during August
Historical Weather Analysis

San Diego Weather on August 27 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

clear-day

26.2°C

High

18.7°C

Low

1%

Rain

☀️ Feels like 27.3°C (humidity)

clear-day
YES, IT'S PARADISE
Peak Season

August 27 is statistically one of the best days of the year in San Diego. With minimal rain risk (1%) and pleasant highs of 26°C, it's ideal for outdoor adventures. As it's peak season for San Diego, we recommend booking your stay well in advance to secure the best rates.

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

San Diego Weather Forecast for August 27

"Warm & Sunny. Expect average highs of 26.2°C. 1% chance of rain."

What to Wear in San Diego in August

Based on historical data for August 27, San Diego typically experiences temperatures between 18.7°C and 26.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (1% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for San Diego

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

26.2°C

Daytime Peak

Average Low

extreme-cold

18.7°C

Nighttime Low

Feels Like

partly-cloudy-day

27.3°C

☀️ Minor difference

Rain Chance

rain

1%

Avg 0mm if it rains

Cloud Cover

cloudy

26%

Overcast

Pressure

pressure

1011.8 hPa

Low volatility

San Diego Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

100%Highly Predictable

Based on 10 years of data

Temperature
±1.9°CStable
Precipitation
0-2%Predictable

🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

6.2High
036811+

Protection Needed

SPF 30+ required, seek shade

Safe Sun Windows
Morning

05:00 - 10:00

Afternoon

16:00 - 18:00

Peak danger: 09:30 - 13:30
Time to Sunburn

Type I-II

🔴 13 min to burn

Type III-IV

🟡 20 min to burn

Type V-VI

🟢 33 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

63Moderate
TemperatureHot
HumidityMuggy
WindBreezy

Dew Point

22.1°C

Humid/Sticky

Heat Stress

Low

No heat warning

😐 Best outdoor time:
Morning hours (before 11 AM)

Marine Conditions

Water Temp
21.6°C
🏊 Swimming Pool
Avg daily surface temperature
Surf Conditions
0.78m
🌊 Fun Waves
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

✅ Excellent Swimming Conditions

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in United States

Flight Traffic

High

80/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~357

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in San Diego

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:21

☀️ Noon

11:51

🌇 Sunset

18:21

⏱️ Daylight

13h 0m

Golden Hour
Morning05:21 - 05:54
17:48 - 18:21Evening

Wind Speed

wind

15.6 km/h

Gentle breeze

Sunshine

clear-day

11.5 hrs

Direct Sun (Cloud-free)

Humidity

humidity

78%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for San Diego

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in San Diego

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

99/100

Tourist Crowds

🔴 Very Busy

100/100

Price Level

💰💰💰 Expensive

100/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1011.8 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskMedium

Mild discomfort possible for arthritic conditions.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
61AQI
Moderate
PM2.5 Concentration15 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Medium

Seismic Activity

Moderate seismic activity. Occasional tremors possible.

Total events (30y):36
In Aug (30y):1
Last in Aug:2018-08-15
💡 Occasional tremors possible. Know your hotel's evacuation route.
High

Eastern Pacific Hurricane Risk

Season: May - Nov

Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.

"According to 30YearWeather's analysis of 30 years of NASA satellite data, San Diego on August 27 averages 26.2°C with a 1% precipitation probability. Wedding/Outdoor Event Score: 100/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

San Diego Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2020
29.4°C
Coldest
2016
16.6°C
Rainiest
2016
0.0mm

Compare Other Cities

Same date (August 27) in other destinations

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📍 Is San Diego Worth Visiting on August 27?

Planning a trip to San Diego on August 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.2°C with a 1% historical precipitation risk.

✈️ Travel Logistics: Approximately 357 landing slots available daily during this period, indicating manageable crowd levels.

🌊 Coastal Conditions: Water temperature averages 21.6°C (swimming pool). Wave conditions are generally fun waves with heights around 0.78m.

📊 Historical Extremes: The hottest August 27 recorded in the last 30 years saw temperatures hit 29.4°C in 2020, while the coldest dropped to 16.6°C in 2016.

San Diego Weather FAQ