The best times to visit Gampaha for ideal weather are
November 26th to March 18th
May 21st to August 12th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Gampaha Travel Guide
Other Gampaha Travel Info
Weather in Gampaha
Average temperatures in Gampaha vary very little. Considering humidity, temperatures feel hot all year with a very low chance of rain throughout the year. The area is less temperate than some — in the 32nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Gampaha, the hottest months are May, June, and then April. See average monthly temperatures below. The warmest time of year is generally early to mid May where highs are regularly around 89.8°F (32.1°C) with temperatures rarely dropping below 79°F (26.1°C) at night.
Gampaha Temperatures (Fahrenheit)
Gampaha Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Gampaha Perceived Temperature (F)
Gampaha Perceived Temperature (C)
Average Gampaha Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Gampaha are February, July, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early November with an average of 1 days of significant precipitation the week of November 5th.
When can you find snow in Gampaha? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Gampaha.
Snow on the Ground
The graph below shows the average snow on the ground in Gampaha (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Gampaha has some very humid months, and above average humidity throughout the year. The least humid month is January (64.9% relative humidity), and the most humid month is November (75.1%).
Wind in Gampaha is usually calm. The windiest month is July, followed by August and June. July’s average wind speed of around 8.2 knots (9.5 MPH or 15.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May where average top sustained speeds reach 13.1 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Gampaha.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||7.8||Gentle breeze||12.5||Significant breeze|
|Feb||6.5||Light breeze||11||Significant breeze|
|Mar||5.3||Light breeze||9.6||Significant breeze|
|Apr||5.3||Light breeze||10||Gentle breeze|
|May||8||Gentle breeze||12||Significant breeze|
|Jun||8.1||Gentle breeze||12||Significant breeze|
|Jul||8.2||Gentle breeze||11.6||Significant breeze|
|Aug||8.2||Gentle breeze||11.8||Significant breeze|
|Sep||7.6||Gentle breeze||11.4||Significant breeze|
|Oct||6||Light breeze||10.1||Gentle breeze|
|Nov||5.2||Light breeze||9.5||Significant breeze|
|Dec||6.6||Light breeze||11.1||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Gampaha?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Sri Lanka; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 25, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Gampaha, Sri Lanka is July, followed by August and January. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Gampaha in March. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Gampaha Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 89.4°F (31.9°C) and 86.8°F (30.4°C) with similar temperatures in the later months. Rain is rare with 0 to 3 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in Gampaha, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 87.2°F (30.7°C) and 85.3°F (29.6°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 1 to 5 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is perfect this time of year in Gampaha to be enjoyable for warm weather travelers. The average high during this season is between 89.8°F (32.1°C) and 85.6°F (29.8°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the second busiest with tourists.