The busiest month for tourism in Islamabad, Pakistan is June, followed by May and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Islamabad in October. Those willing to visit at these times will likely find it the least expensive month.
Islamabad Annual Weather Averages. June is the hottest month in Islamabad with an average temperature of 88°F (31°C) and the coldest is January at 49°F (10°C) with the most daily sunshine hours at 13 in June. The wettest month is July with an average of 100mm of rain