Gränna Temperature by Month
Gränna, Jönköping county, Sweden has an average annual maximum temperature of 11°C (52°F), ranging from 2°C (36°F) in February to 21°C (70°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Gränna Monthly Temperatures
Visitors to Gränna will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 13°C (55°F) in July to -4°C (25°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Gränna by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. July, the warmest month, gets 214 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in May
Historical Gränna Temperatures: 1976-2026
Browse day-by-day temperature records for Gränna spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Gränna vs Sweden
The map below shows the annual temperature across Sweden. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Gränna vs World: Temperature Compared
Gränna's average annual maximum temperature is 11°C (52°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Gränna?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Gränna, February is the coolest month, with average highs of 2°C (36°F) and humidity around 84% — considered 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 Gränna this rarely lasts long on the ground.
For more on Gränna's weather — including monthly rainfall, sunshine hours, and humidity — visit our Gränna climate page.
