30YearWeather
Colombo in April
Colombo weather in April - Sri Lanka
🌧️Wet Season

Colombo Weather in April

Plan your April trip to Colombo, Sri Lanka. Based on 30 years of NASA data, expect temperatures of 31°C (high) to 25°C (low), with 60% rain probability and 8 hours of daily sunshine. The Indian Ocean averages 31°C in April. Pack rain gear for around 30 rainy days.

Avg High
31°C

Hottest around day 1

Avg Low
25°C

Coolest around day 5

Rainy Days
30days

60% avg rain chance

Sunshine
8hrs/day

Spring season

Sea Temperature in April

Indian Ocean

30.8°C

Monthly Average

Water Feel
🌴Tropical

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
Indian Ocean

Colombo coastline

Colombo April Weather Calendar

Click any day to see detailed weather information

Currency

LKR

Rs රු Sri Lankan rupee

Language

Sinhala

+1 more

Driving

Left side

Connect

SIM cards for unlocked phones may be pur...

Safety

Moderate Safety

GPI: 2.02

Travel Intelligence

Exclusive flight analytics & health data for Colombo

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

Low Traffic
37/ 100
Traffic Index

Quieter airport

Peak Daily Arrivals

0

slots per day

Peak

Jan

Low

Oct

Monthly Traffic Distribution

92
Jan
87
Feb
87
Mar
81
Apr
84
May
81
Jun
83
Jul
85
Aug
86
Sep
63
Oct
84
Nov
91
Dec
Traffic Level
Low Season

Key Connections

Dubai (DXB)
Malé (MLE)
Chennai (MAA)
Doha Hamad (DOH)
Kuala Lumpur (KUL)

Health & Safety Advisory

CDC travel health recommendations

9 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Chikungunya

There is anoutbreak of chikungunyain Sri Lanka.Chikungunya vaccinationis recommended for people traveling to an area with a chikungunya outbreak.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Sri Lanka.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Sri Lanka. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Sri Lanka.

Japanese Encephalitis

Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or travel to areas with no clear Japanese encephalitis season.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

+3 more

Source: CDC Travelers' Health

View Complete Health Guide

Is April a Good Time to Visit Colombo?

🤔Requires preparation but many visit successfully
Short Answer

Tropical storm season is active in Colombo during April. Average conditions (31°C, 60% rain) can be interrupted by severe weather. Monitor forecasts closely.

Decision Factors

Cyclone season active

Indian Ocean zone - expect potential cyclone activity

Oppressive heat and humidity

30.7°C with 83% humidity - challenging conditions

High rainfall period

60% rain probability, 5.2mm average

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.7°C

Heat index: 41°C due to 83% humidity

Warm tropical seas

30.8°C sea temperature - Hot Soup

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    41°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 41°C poses health risks

  • 🥾
    Outdoor enthusiasts

    60% rain probability disrupts outdoor activities

900 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Colombo in April averages 31°C with 60% precipitation probability."

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

Frequently Asked Questions: Colombo in April

What are the temperatures in Colombo in April?

Daytime highs average 31°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Colombo in April?

Expect around 30 days with measurable rainfall. Definitely pack rain gear.

What to wear in Colombo in April?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is April peak season in Colombo?

This is off-peak season. Expect lower prices and fewer crowds.