30YearWeather
New Orleans, April 21
New Orleans street view during April
Historical Weather Analysis

New Orleans Weather on April 21 — Best Time to Visit?

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

clear-day

24.8°C

High

17.5°C

Low

14%

Rain

☀️ Feels like 25.6°C (humidity)

clear-day
YES, IT'S PARADISE
Peak Season

April 21 is statistically one of the best days of the year in New Orleans. With minimal rain risk (14%) and pleasant highs of 25°C, it's ideal for outdoor adventures. As it's peak season for New Orleans, 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 telephone area code for New Orleans ...

Safety

Moderate Safety

GPI: 2.44

New Orleans Weather Forecast for April 21

"Mild & Comfortable. Expect average highs of 24.8°C. 14% chance of rain."

What to Wear in New Orleans in April

Based on historical data for April 21, New Orleans typically experiences temperatures between 17.5°C and 24.8°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (14% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for New Orleans

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

24.8°C

Daytime Peak

Average Low

extreme-cold

17.5°C

Nighttime Low

Feels Like

partly-cloudy-day

25.6°C

☀️ Feels accurate

Rain Chance

rain

14%

Avg 0.9mm if it rains

Cloud Cover

cloudy

47%

Light drizzle

Pressure

pressure

1016.8 hPa

Low volatility

New Orleans Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

90%Highly Predictable

Based on 10 years of data

Temperature
±2.9°CModerate
Precipitation
7-40%Moderate

🎯 This date historically delivers consistent weather 90% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

5.2Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

05:00 - 10:00

Afternoon

16:00 - 18:00

Time to Sunburn

Type I-II

🔴 15 min to burn

Type III-IV

🟡 23 min to burn

Type V-VI

🟢 38 min to burn

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

Outdoor Comfort

How pleasant is it outside?

76Good
TemperatureWarm
HumidityMuggy
WindBreezy

Dew Point

19.8°C

Noticeable

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

High

96/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~207

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in New Orleans

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:28

☀️ Noon

12:00

🌇 Sunset

18:31

⏱️ Daylight

13h 3m

Golden Hour
Morning05:28 - 06:00
17:59 - 18:31Evening

Wind Speed

wind

20.9 km/h

Moderate wind

Sunshine

clear-day

10.8 hrs

Direct Sun (Cloud-free)

Humidity

humidity

74%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for New Orleans

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 New Orleans

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

89/100

Tourist Crowds

🟡 Busy

70/100

Price Level

💰💰 Moderate

75/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1016.8 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
31AQI
Good
PM2.5 Concentration3.7 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Stable

Seismic Activity

Zero seismic activity detected in 30 years.

Total events (30y):0
💡 No earthquake preparedness needed. Enjoy your stay!
Moderate

Atlantic Hurricane Risk

Season: Jun - Nov

"According to 30YearWeather's analysis of 30 years of NASA satellite data, New Orleans on April 21 averages 24.8°C with a 14% precipitation probability. Wedding/Outdoor Event Score: 100/100."

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

New Orleans Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2025
28°C
Coldest
2019
11.1°C
Rainiest
2023
11.1mm

Compare Other Cities

Same date (April 21) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is New Orleans Worth Visiting on April 21?

Planning a trip to New Orleans on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 24.8°C with a 14% historical precipitation risk.

✈️ Travel Logistics: Approximately 207 landing slots available daily during this period, indicating manageable crowd levels.

📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 28°C in 2025, while the coldest dropped to 11.1°C in 2019.

New Orleans Weather FAQ