Negombo Temperature by Month
Negombo in Gampaha District, Sri Lanka enjoys a stable climate, with daytime temperatures staying close to 31°C (88°F) throughout the year. Explore the full monthly breakdown below.
Negombo Monthly Temperatures
In Negombo temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 30°C (86°F) in January to a very warm 33°C (91°F) in March. Nighttime lows range from 26°C (79°F) in March to 24°C (75°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Negombo by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. March, the city's warmest month, sees 276 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
45-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Negombo Temperatures: 1976-2026
Browse day-by-day temperature records for Negombo spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Negombo vs Sri Lanka
The map below shows the annual temperature across Sri Lanka. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Negombo vs World: Temperature Compared
Negombo's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Negombo?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Negombo, January is the coolest month, with average highs of 31°C (88°F) and humidity around 70% — considered high. In March, the warmest month, temperatures average 33°C (91°F) with 69% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Negombo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Negombo climate page.
