Bülach Temperature by Month
The average annual maximum temperature in Bülach, Canton of Zurich, Switzerland is 15°C (59°F), with daytime highs ranging from 5°C (41°F) in January to 25°C (77°F) in July. This page covers monthly averages, day-night differences, and how Bülach compares to cities worldwide.
Bülach Monthly Temperatures
Depending on the time of the year, temperatures range from warm to cold in Bülach. Nighttime lows follow the same pattern, ranging from 14°C (57°F) to -1°C (30°F).
The chart below illustrates the average maximum day and minimum night temperatures in Bülach by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 230 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Bülach vs Switzerland
The map below shows the annual temperature across Switzerland. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Bülach vs World: Temperature Compared
Bülach's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Bülach?
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 Bülach, January is the coolest month, with average highs of 5°C (41°F) and humidity around 83% — considered very high. In July, the warmest month, temperatures average 25°C (77°F) with 71% humidity — conditions that feel 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 Bülach this rarely lasts long on the ground.
For more on Bülach's weather — including monthly rainfall, sunshine hours, and humidity — visit our Bülach climate page.
