Diyatalawa Temperature by Month
The average annual maximum temperature in Diyatalawa, Badulla District, Sri Lanka is 29°C (84°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Diyatalawa compares to cities worldwide.
Diyatalawa Monthly Temperatures
In Diyatalawa temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 27°C (81°F) in January to a very warm 31°C (88°F) in July. Nighttime lows range from 22°C (72°F) in July to 18°C (64°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Diyatalawa by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 67 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Diyatalawa 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
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moderate
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Diyatalawa vs World: Temperature Compared
Diyatalawa's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
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 Diyatalawa?
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 Diyatalawa, January is the coolest month, with average highs of 27°C (81°F) and humidity around 75% — considered high. In July, the warmest month, temperatures average 31°C (88°F) with 84% humidity — conditions that feel very 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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Diyatalawa this rarely lasts long on the ground.
For more on Diyatalawa's weather — including monthly rainfall, sunshine hours, and humidity — visit our Diyatalawa climate page.
