30YearWeather
Lagos, September 20
Lagos street view during September
Historical Weather Analysis

Lagos Weather on September 20 — Best Time to Visit?

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

clear-day

25.5°C

High

17.7°C

Low

10%

Rain

☀️ Feels like 26.4°C (humidity)

clear-day
YES, IT'S PARADISE
Peak Season

September 20 is statistically one of the best days of the year in Lagos. With minimal rain risk (10%) and pleasant highs of 26°C, it's ideal for outdoor adventures. Lagos is currently in its most popular travel window, meaning vibrant crowds and premium pricing.

Currency

EUR

Euro

Language

Portuguese

Driving

Right side

Safety

Very High Safety

GPI: 1.301

Lagos Weather Forecast for September 20

"Warm & Sunny. Expect average highs of 25.5°C. 10% chance of rain."

What to Wear in Lagos in September

Based on historical data for September 20, Lagos typically experiences temperatures between 17.7°C and 25.5°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (10% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Lagos

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

25.5°C

Daytime Peak

Average Low

extreme-cold

17.7°C

Nighttime Low

Feels Like

partly-cloudy-day

26.4°C

☀️ Feels accurate

Rain Chance

rain

10%

Avg 0.5mm if it rains

Cloud Cover

cloudy

36%

Overcast

Pressure

pressure

1016.1 hPa

Low volatility

Lagos Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

100%Highly Predictable

Based on 10 years of data

Temperature
±1.7°CStable
Precipitation
5-20%Predictable

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

Sun Exposure

UV Index & Safety Guide

3.6Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

06:00 - 10:00

Afternoon

16:00 - 18:00

Time to Sunburn

Type I-II

🔴 22 min to burn

Type III-IV

🟡 33 min to burn

Type V-VI

🟢 55 min to burn

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

Outdoor Comfort

How pleasant is it outside?

68Good
TemperatureWarm
HumidityMuggy
WindBreezy

Dew Point

20.3°C

Humid/Sticky

Heat Stress

Low

No heat warning

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

Marine Conditions

Water Temp
17.6°C
🥃 Refreshing Tonic
Avg daily surface temperature
Surf Conditions
0.97m
🌊 Fun Waves
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

❄️ Cold Water Hazard

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Portugal

Flight Traffic

High

91/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~127

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Lagos

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

06:21

☀️ Noon

12:29

🌇 Sunset

18:37

⏱️ Daylight

12h 15m

Golden Hour
Morning06:21 - 06:56
18:02 - 18:37Evening

Wind Speed

wind

19.1 km/h

Gentle breeze

Sunshine

clear-day

10.4 hrs

Direct Sun (Cloud-free)

Humidity

humidity

73%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Lagos

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 Lagos

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

92/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1016.1 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
28AQI
Good
PM2.5 Concentration3.1 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):10
In Sep (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Lagos on September 20 averages 25.5°C with a 10% precipitation probability. Wedding/Outdoor Event Score: 100/100."

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

Lagos Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2018
28.9°C
Coldest
2017
15.5°C
Rainiest
2024
2.3mm

Compare Other Cities

Same date (September 20) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Lagos Worth Visiting on September 20?

Planning a trip to Lagos on September 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.5°C with a 10% historical precipitation risk.

✈️ Travel Logistics: Approximately 127 landing slots available daily during this period, indicating manageable crowd levels.

💉 Health Advisory: 6 vaccinations are recommended for Portugal, including COVID-19.

🌊 Coastal Conditions: Water temperature averages 17.6°C (refreshing tonic). Wave conditions are generally fun waves with heights around 0.97m.

📊 Historical Extremes: The hottest September 20 recorded in the last 30 years saw temperatures hit 28.9°C in 2018, while the coldest dropped to 15.5°C in 2017.

Lagos Weather FAQ