26 degrees Celsius is equal to 78.8 degrees Fahrenheit. The formula to convert Celsius to Fahrenheit is given by °F = °C × (9/5) + 32. Therefore, to convert 26 degrees Celsius to Fahrenheit, we can use the formula as follows:

°F = 26 × (9/5) + 32 °F = 46.8 + 32 °F = 78.8

Therefore, 26 degrees Celsius is equivalent to 78.8 degrees Fahrenheit.