The best times to visit Ranna for ideal weather are
May 28th to August 19th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Ranna Travel Guide
Other Ranna Travel Info
Weather in Ranna
Average temperatures in Ranna vary barely at all. Considering humidity, temperatures feel hot all year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 14th 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 Ranna, the hottest months are May, April, and then July. See average monthly temperatures below. The warmest time of year is generally early to mid May where highs are regularly around 90.6°F (32.6°C) with temperatures rarely dropping below 78.9°F (26.1°C) at night.
Ranna Temperatures (Fahrenheit)
Ranna 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.
Ranna Perceived Temperature (F)
Ranna Perceived Temperature (C)
Average Ranna 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 Ranna are July, February, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid February. For example, on the week of February 19th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 3 days of significant precipitation the week of December 17th.
When can you find snow in Ranna? 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 Ranna.
Snow on the Ground
The graph below shows the average snow on the ground in Ranna (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
Ranna has some very humid months, and high humidity throughout the year. The least humid month is July (72.8% relative humidity), and the most humid month is May (80.1%).
Wind in Ranna is usually moderate. The windiest month is July, followed by June and August. July’s average wind speed of around 9 knots (10.4 MPH or 16.8 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 early to mid 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 Ranna.
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||6.7||Light breeze||12.1||Significant breeze|
|Feb||6.6||Light breeze||12.2||Significant breeze|
|Mar||5.9||Light breeze||11.4||Significant breeze|
|Apr||5.5||Light breeze||11.9||Significant breeze|
|May||8.6||Gentle breeze||14.8||Significant breeze|
|Jun||9||Gentle breeze||15.2||Significant breeze|
|Jul||9||Gentle breeze||15.1||Significant breeze|
|Aug||8.7||Gentle breeze||14.8||Significant breeze|
|Sep||8.4||Gentle breeze||15.2||Significant breeze|
|Oct||6.4||Light breeze||12.5||Significant breeze|
|Nov||4.6||Light breeze||9.7||Significant breeze|
|Dec||5.1||Light breeze||10.4||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Ranna?
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 Ranna, Sri Lanka is December, followed by October and August. 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 Ranna in June. 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 Ranna Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 90.6°F (32.6°C) and 88.4°F (31.3°C) with similar temperatures in the later months. Rain is somewhat common with 3 to 6 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 3 to 5 days of precipitation per month. June – August is fairly slow season for tourism in Ranna, so lodging and other accommodations may cost slightly less.
Fall (September through November)
Fall daily highs range from 88.4°F (31.3°C) and 87.3°F (30.7°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 7 to 10 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Winter (December through February)
Weather is perfect this time of year in Ranna to be enjoyable for warm weather travelers. The average high during this season is between 90.5°F (32.5°C) and 86°F (30°C). On average, it rains or snows a fair amount: 3 to 9 times per month. These times of year are the busiest with tourists.