Perimeter Institute for Theoretical Physics
Waterloo, Canada

The Perimeter Institute for Theoretical Physics is a research institute, educational institution, and nonprofit organization in Waterloo, Canada. It is one of the 93 sights listed for the country and is the 26th most looked-up sight in Canada on English Wikipedia.
Planning a visit
The climate in Waterloo varies by month. The warmest months are July, with a high of 26 °C, and June and August, which have highs of 24 °C. The coldest period is between January and February, when daily highs are around -2 °C to -1 °C and lows reach -10 °C. Rain occurs throughout the year, with July seeing the most at 93 mm and February seeing the least at 68 mm.
Visitors can reach the institute via the Region of Waterloo International Airport in Breslau, which is 12 km away. John C. Munro Hamilton International Airport is another option, located 58 km from the site. The institute is 441 km from the capital, Ottawa. For more information, visit http://www.perimeterinstitute.ca.
Weather by month
The warmest month is July, with an average high of 26 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | -2 | -1 | 5 | 12 | 19 | 24 | 26 | 24 | 21 | 13 | 7 | 1 |
| Average low, °C | -10 | -10 | -5 | 2 | 8 | 14 | 16 | 15 | 12 | 6 | 0 | -6 |
| Rainfall, mm | 76 | 68 | 60 | 74 | 88 | 82 | 93 | 79 | 84 | 76 | 87 | 71 |
| Rainy days | 10 | 9 | 9 | 12 | 12 | 13 | 12 | 12 | 11 | 13 | 12 | 12 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.