The best times to visit Mannar for ideal weather are
May 28th to September 16th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Mannar Travel Guide
Other Mannar Travel Info
Weather in Mannar
Temperature
Average temperatures in Mannar vary very little. Considering humidity, temperatures feel hot all year with a low chance of precipitation most of the year. The area is less temperate than some — in the 21st 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 Mannar, the hottest months are May, June, and then April. See average monthly temperatures below. The warmest time of year is generally late May where highs are regularly around 91.5°F (33.1°C) with temperatures rarely dropping below 82.3°F (27.9°C) at night.
Mannar Temperatures (Fahrenheit)
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Mannar Temperatures (Celsius)
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“Feels-Like” Temperatures
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.
Mannar Perceived Temperature (F)
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Mannar Perceived Temperature (C)
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Average Mannar 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.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 84.1 | 79.6 | 75 |
| Feb | 86.3 | 80.7 | 75 |
| Mar | 90.2 | 83.5 | 76.2 |
| Apr | 90.9 | 84.8 | 78.1 |
| May | 89.7 | 85.6 | 81.2 |
| Jun | 88.7 | 85 | 81.5 |
| Jul | 88.3 | 84 | 80.1 |
| Aug | 87.7 | 83.3 | 79.4 |
| Sep | 87.7 | 83.5 | 79.3 |
| Oct | 87.6 | 82.8 | 77.8 |
| Nov | 85.5 | 81.2 | 76.3 |
| Dec | 83.6 | 79.7 | 75.4 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 28.9 | 26.4 | 23.9 |
| Feb | 30.2 | 27.1 | 23.9 |
| Mar | 32.3 | 28.6 | 24.6 |
| Apr | 32.7 | 29.3 | 25.6 |
| May | 32.1 | 29.8 | 27.3 |
| Jun | 31.5 | 29.4 | 27.5 |
| Jul | 31.3 | 28.9 | 26.7 |
| Aug | 30.9 | 28.5 | 26.3 |
| Sep | 30.9 | 28.6 | 26.3 |
| Oct | 30.9 | 28.2 | 25.4 |
| Nov | 29.7 | 27.3 | 24.6 |
| Dec | 28.7 | 26.5 | 24.1 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Mannar are June, 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 late January. For example, on the week of January 22nd there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late November to early December with an average of 3 days of significant precipitation the week of November 26th.
When can you find snow in Mannar? 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 Mannar.
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Snow on the Ground
The graph below shows the average snow on the ground in Mannar (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 12% | 0 | 2.3 |
| Feb | 8% | 0 | 1.2 |
| Mar | 4% | 0 | 1.5 |
| Apr | 16% | 0 | 4.1 |
| May | 11% | 0 | 2.3 |
| Jun | 0% | 0 | 0 |
| Jul | 0% | 0 | 0 |
| Aug | 4% | 0 | 1.4 |
| Sep | 8% | 0 | 2.5 |
| Oct | 22% | 0 | 4.9 |
| Nov | 38% | 0 | 11.7 |
| Dec | 40% | 0 | 11.1 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 12 | 0 | 5.8 |
| Feb | 8 | 0 | 3 |
| Mar | 4 | 0 | 3.8 |
| Apr | 16 | 0 | 10.4 |
| May | 11 | 0 | 5.8 |
| Jun | 0 | 0 | 0 |
| Jul | 0 | 0 | 0 |
| Aug | 4 | 0 | 3.6 |
| Sep | 8 | 0 | 6.4 |
| Oct | 22 | 0 | 12.4 |
| Nov | 38 | 0 | 29.7 |
| Dec | 40 | 0 | 28.2 |
Humidity and Wind
Mannar has some extremely humid months, and high humidity throughout the year. The least humid month is March (70.5% relative humidity), and the most humid month is December (81.8%).
Wind in Mannar is usually moderate. The windiest month is June, followed by May and July. June’s average wind speed of around 11.1 knots (12.8 MPH or 20.6 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May to early June where average top sustained speeds reach 15.8 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Mannar.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | Gentle breeze | 10.3 | Gentle breeze |
| Feb | 6.4 | Light breeze | 9.6 | Gentle breeze |
| Mar | 4.5 | Light breeze | 7.7 | Gentle breeze |
| Apr | 3.8 | Barely noticeable | 6.7 | Light breeze |
| May | 9.7 | Gentle breeze | 12.7 | Gentle breeze |
| Jun | 11.1 | Significant breeze | 14.4 | Significant breeze |
| Jul | 9.6 | Gentle breeze | 12.5 | Gentle breeze |
| Aug | 9.3 | Gentle breeze | 12.2 | Significant breeze |
| Sep | 8.9 | Gentle breeze | 12.6 | Gentle breeze |
| Oct | 4.9 | Light breeze | 8.5 | Gentle breeze |
| Nov | 4.2 | Light breeze | 7.5 | Gentle breeze |
| Dec | 6 | Light breeze | 9.3 | Gentle breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 75.7% |
| Feb | 72.7% |
| Mar | 70.5% |
| Apr | 73.5% |
| May | 75.3% |
| Jun | 74.2% |
| Jul | 74.3% |
| Aug | 76.3% |
| Sep | 76.8% |
| Oct | 77.6% |
| Nov | 80.7% |
| Dec | 81.8% |
Is it Safe to Travel to Mannar?
Our best data indicates this area is somewhat safe. As of Dec 04, 2023 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 Oct 26, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Mannar, Sri Lanka is August, followed by January and February. 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 Mannar in May. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Mannar Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel very warm. Highs range from 91.5°F (33.1°C) and 88.2°F (31.2°C) with similar temperatures in the later months. Rain is rare with 1 to 5 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 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Mannar, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 88.1°F (31.2°C) and 83.7°F (28.7°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 2 to 11 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 Mannar to be enjoyable for warm weather travelers. The average high during this season is between 88.2°F (31.2°C) and 82.8°F (28.2°C). On average, it rains or snows a fair amount: 2 to 12 times per month. These times of year are the second busiest with tourists.
Best Times to Travel› Sri Lanka › Mannar, Sri Lanka