March 23 sees frequent showers in Seattle. Historical data shows a 48% chance of rain, so pack accordingly. Temperatures average 12°C. You'll find plenty of company in Seattle this month as tourism activity remains quite robust.
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Essential Travel Info for Seattle
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Connect
The area code for the City of Seattle is...
Safety
Moderate Safety
GPI: 2.44
Seattle Weather Forecast for March 23
"Mild & Comfortable. Expect average highs of 11.5°C. 48% chance of rain."
What to Wear in Seattle in March
Based on historical data for March 23, Seattle typically experiences temperatures between 4.1°C and 11.5°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 48% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Seattle
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
11.5°C
Daytime Peak
Average Low
4.1°C
Nighttime Low
Feels Like
10.4°C
🌤️ Minor difference
Rain Chance
48%
Avg 3.2mm if it rains
Cloud Cover
75%
Light drizzle
Pressure
1016.1 hPa
Medium volatility
Seattle Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 42 min to burn
Type III-IV
🟡 63 min to burn
Type V-VI
🟢 105 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8.4°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Busy
75/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~558
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Seattle
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:07
☀️ Noon
12:17
🌇 Sunset
18:26
⏱️ Daylight
12h 19m
Wind Speed
15.3 km/h
Gentle breeze
Sunshine
7.2 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Seattle
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 Seattle
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Volcanic Activity
Nearest: Mount Rainier
94.3km away
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Seattle on March 23 averages 11.5°C with a 48% precipitation probability. Wedding/Outdoor Event Score: 61/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Seattle Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
March 30
11.7°C • 38% rain
Score
66
March 20
11.6°C • 41% rain
Score
65
March 29
11.8°C • 42% rain
Score
65
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Seattle Worth Visiting on March 23?
Planning a trip to Seattle on March 23? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 11.5°C with a 48% historical precipitation risk.
✈️ Travel Logistics: Approximately 558 landing slots available daily during this period, indicating peak tourist activity.
📊 Historical Extremes: The hottest March 23 recorded in the last 30 years saw temperatures hit 13.6°C in 2019, while the coldest dropped to 3.4°C in 2018.