Cycling & Running Conditions Index
A single "good to go" score for the 7–8am and 5–6pm commute windows • Last checked: 00:41 on Thursday 29 October 2026
Checking a full forecast to work out whether it's worth getting the bike out, or lacing up for a run, is more effort than it should be — so this page does the working-out for you. Wind, rain, visibility and temperature for the morning and evening commute are boiled down into a single score out of 100: the higher the number, the better the conditions. Covers the next eight days, weekends included, since a run doesn't care what day of the week it is.
Today
Thursday 29 Oct
89
AM 7–8
☀
89
11.5°C • 2%
PM 5–6
☁
100
14.2°C • 0%
Good to go
Nothing standing in your way today - lace up or grab the bike.
Tomorrow
Friday 30 Oct
99
AM 7–8
☀
99
10.9°C • 0%
PM 5–6
☀
100
13.6°C • 0%
Good to go
About as good as it gets - light, dry and easy on the lungs.
Sat 31 Oct
Saturday
99
AM 7–8
⛅
99
8.7°C • 0%
PM 5–6
☁
99
10.4°C • 0%
Good to go
A textbook day for it - no excuses on the weather front.
Sun 1 Nov
Sunday
96
AM 7–8
☁
99
8.7°C • 0%
PM 5–6
☁
96
9.5°C • 0%
Good to go
Calm, dry and mild - one of the better days this week.
Mon 2 Nov
Monday
93
AM 7–8
☀
93
8.8°C • 0%
PM 5–6
⛅
96
11.5°C • 0%
Good to go
Clear road ahead, weather-wise - enjoy it.
Tue 3 Nov
Tuesday
93
AM 7–8
⛅
93
7.3°C • 0%
PM 5–6
☁
95
10.6°C • 0%
Good to go
Nothing standing in your way today - lace up or grab the bike.
Wed 4 Nov
Wednesday
95
AM 7–8
☁
95
10.2°C • 0%
PM 5–6
☀
95
9.9°C • 2%
Good to go
About as good as it gets - light, dry and easy on the lungs.
Thu 5 Nov
Thursday
92
AM 7–8
⛅
92
6.9°C • 0%
PM 5–6
☀
93
8.9°C • 2%
Good to go
A textbook day for it - no excuses on the weather front.
AM vs PM commute score, and rain risk
About this score
Forecast figures come from Open-Meteo's free weather API for Southampton, checked every 30 minutes. Each commute window starts at 100 points and loses ground for whatever's working against you: up to 35 for rain probability, 15 more for heavy rainfall, up to 30 for wind, up to 25 for fog or mist, and up to 25 for near-freezing or very hot temperatures — any thunderstorm caps the score at 15 outright. It's a simple, transparent points system, not a black box, and the day's overall score is just the worse of its two commute windows.
This is general guidance for planning ahead, not a substitute for checking the sky before you head out, or for your own judgement on the day. For the school-specific version of this idea, see the School Run Weather Advisory; for UV exposure on longer runs, see the UV Forecast.
See also: School Run Weather Advisory • 5 Day Forecast • UV Forecast