What to wear cycling in the rain
Practical advice by rain chance and temperature, from the rules the Wethra app applies · Updated July 2026
Most cycling-in-the-rain advice amounts to “wear a waterproof”. The decisions that actually keep you dry and warm are more specific: how likely is rain across the whole ride, how cold is it at riding speed, and is the weather turning while you’re out? This guide covers all three, using the same rules the Wethra app applies when it builds a recommendation.
Start with the chance of rain, not the sky
The most common way cyclists get soaked is dressing for the weather at the front door instead of the weather across the whole ride. A dry start with a 70% chance an hour in is a wet ride. Decide based on the worst point of your ride window, not the first.
| Chance of rain (worst point of the ride) | What to do |
|---|---|
| 65% or higher | Full commitment: waterproof cycling jacket and waterproof trousers or overshorts, worn from the door. At this level rain is not a maybe. Starting dry and stopping to layer up mid-ride means you’re already soaked before the jacket goes on. |
| 35–65% | Wear a waterproof cycling jacket from the start. This is the range that catches riders out — it looks rideable from the window, then turns. |
| 15–35% | Packable rain jacket in a back pocket. If it’s also windy (around 30 km/h or more), wear a windproof waterproof instead — wind-driven rain at riding speed is far wetter than the percentage suggests. |
| Below 15% | No rain kit needed for a normal ride, though a packable jacket costs nothing to carry if you’ll be out for hours. |
One more rule: if the forecast climbs sharply during your ride — say 20% when you leave but 50% within the hour — treat it as the higher number and wear the waterproof from the start. There is no recovering from getting soaked and cold on a bike; prevention is the whole game.
Dress for riding speed, not the thermometer
Cycling makes its own wind chill. At a steady pace, moving air strips heat fast enough that you should dress as if it’s 3–5°C colder than the feels-like temperature — and rain makes it worse, because wet fabric conducts heat away from your skin far faster than dry fabric does.
Working down the temperatures (assuming average cold tolerance — if you know you run cold, shift each threshold about 3°C warmer, which is what Wethra does automatically from your preferences):
- Below about 14°C: a wicking base layer, never cotton. You’ll still sweat on climbs in the rain, and cotton holds that sweat against your skin, then chills you at every junction stop.
- Below about 10°C: add a light cycling fleece or mid layer under the shell. The jacket alone isn’t insulation — a mid layer lets you regulate with the zip: open on climbs, closed on descents.
- Below about 3°C: a proper thermal base layer, and treat it as load-bearing — not just a warm t-shirt. This is also the point where gloves become thermal and essential (more below).
The jacket: cycling-specific cut matters
A generic rain coat works standing at a bus stop. On the bars, it rides up at the back, flaps at the front, and funnels water down your wrists. A cycling-cut waterproof — longer tail, shaped sleeves, snug collar — is the single most important piece of rain kit you can own. If it’s windy as well as wet, make sure it’s windproof too: on a bike, wind-driven rain is wetter than standing rain.
Legs and feet: the part everyone underestimates
Wet legs at riding pace cool down extremely fast and stay cold — once your legs are soaked and cold on a bike, they don’t recover until you’re off it. When the rain chance is 65% or higher, waterproof cycling trousers or overshorts are as essential as the jacket, not an optional extra.
- Below about 14°C: bib tights or leggings — bare legs are in the wind for the entire ride, and in the wet it becomes a distraction on any distance.
- Shorts below about 8°C: knee warmers at minimum. Repeatedly loading cold, bare knees is a known route to knee pain and injury; warmers close the gap without committing to full tights.
- Below about 5°C: overshoes or thermal cycling socks. Cold, wet feet are uniquely miserable mid-ride — the wind strips heat continuously and there’s nothing you can do about it until you’re home.
- Rain chance 40% or higher: pack dry socks and a bag for the wet ones. Ten seconds of packing saves the rest of the day.
Hands: a safety item, not a comfort one
Below about 13°C in the wet, cycling gloves stop being optional; below about 3°C they need to be thermal. At riding pace, bare hands go numb in 10–15 minutes — and numb hands mean poor brake control, in exactly the conditions where braking distances are longest.
What to pack
- Rain chance 50% or higher, or any wet commute to work: a full change of dry clothes in a waterproof bag. Arriving soaked with nothing to change into sets up the whole day badly.
- Riding with a backpack in 30%+ rain: a waterproof bag cover. Your bag isn’t just getting rained on — it’s travelling through the rain at 20 km/h.
- Any longer wet ride: a light cap with a peak under the helmet keeps rain out of your eyes far better than squinting does.
Riding in the rain, safely
- Braking: distances grow substantially in the wet, especially with rim brakes. Brake earlier and more gently than feels necessary.
- Surfaces: painted lines, drain covers, and any metal surface are close to frictionless when wet. Cross them upright, never leaned over in a corner.
- Lights: run front and rear lights even in daylight rain — drivers’ visibility drops before yours does, and they see a light before they see a cyclist.
- Wind: gusts above about 50 km/h make cycling borderline unsafe regardless of kit — exposed roads, bridges, and gaps between buildings are the danger points. That’s a public-transport day.
Check the ride home before you leave
The forecast that matters isn’t just the one for when you leave — it’s the one for when you come back. A dry morning commute with a 70% chance on the return leg means carrying full rain kit even though the sky looks fine at 8am. This is the single most common way riders get caught out, and it’s why Wethra checks the return trip as part of every recommendation.
Frequently asked questions
Should I bother with a waterproof, or just get wet and change?
For a short ride somewhere you can fully change, riding wet is a legitimate option in warm weather. Below about 14°C it isn’t — wet clothing plus riding wind chill cools you fast, and cold hands and legs affect bike control, not just comfort.
Do I really need cycling-specific waterproofs?
For occasional short rides, any waterproof beats none. For regular riding, yes — the cut matters once you’re on the bars. A cycling jacket stays put at the back, doesn’t balloon at the front, and packs small enough to live in a jersey pocket.
At what temperature do I need overshoes?
Around 5°C or below — and earlier if it’s properly wet, because soaked shoes strip heat far faster than cold air alone. If your feet have ever gone numb on a ride, err warmer.
Is it safe to cycle in the rain?
Generally yes, with adjustments: brake earlier, stay upright over painted lines and metal, and run lights even in daylight. The exception is strong wind — gusts over about 50 km/h are a reason to take the bus, not a kit problem to solve.
Skip the mental checklist
Wethra runs these rules — plus wind, humidity, the forecast trend, and your own cold tolerance — against the actual forecast for your ride time, out and back. Tell it when you’re riding; it tells you what to wear.