Shorts, a must wear over here for at least 10 months and only sacrificing them on evenings for the last 2 months.
It can get a bit cold at night during winter.
Another vote for Rohan. Been using their clothing range for years and very durable. Just discovered their 'GR Explorer' trousers, smart, nicely cut, elasticated in the right places for gentlemen (and ladies) of a certain age, lightweight and practical, without looking like you are auditioning for the SAS. Excellent.
Not cheap but they seem to have a continuous sale online or you can 'gift' an old item of outdoor wear and get a 15% discount.