In summer, all you need is a light rain layer, a quick-dry base layer, and the right footwear. The key isn't to dress heavily – it's to dress smart for heat and moisture at the same time.
In this guide you'll learn:
What makes summer rain different from autumn and winter rain
Which type of rain jacket works best when it's warm
What to wear on your feet in rain and wet conditions
What you should definitely avoid wearing
What a simple and practical summer rain kit looks like
Warmer outdoor temperatures mean your body works harder and sweats more than in autumn. That means a rain layer that protects well against water but breathes poorly will quickly feel stuffy and uncomfortable – even if you're staying dry on the outside.
The challenge is twofold: you want protection from rain on the outside and the ability to release body heat from the inside. That's what determines which type of rain jacket and materials actually work.
A lightweight, packable rain jacket is by far the best choice for summer use. Unlike heavier autumn and winter models, the focus here is on low weight, good ventilation and easy packability – not maximum insulation.
Three things to prioritise:
Breathability – choose a material that moves heat away from your body, not just one that blocks rain
Ventilation openings – underarm zip vents or open side pockets make a big difference when you're moving
Packable design – a jacket you can tie around your waist or stuff in your bag is the one you'll actually use
Shorter-cut styles in lighter materials work better in summer than a long insulated rain parka.
What Should You Wear Under Your Rain Jacket in Summer?
What you wear underneath affects how comfortable you actually feel – perhaps even more than the jacket itself.
Avoid cotton. Cotton absorbs moisture, dries slowly and creates a cold, clammy feeling when you move. That's true in normal heat, but becomes especially noticeable when you're also sweating under a rain layer.
Choose instead:
Thin t-shirts or tank tops in quick-dry synthetic fabric
Lightweight performance tops that wick moisture away from the skin
Thin merino wool if it's slightly cooler – regulates temperature well and stays fresh
The basic rule is simple: the material closest to your skin should dry quickly, both from the outside and from the inside.
Footwear is what most people forget when planning for summer rain. A great jacket and wet feet still makes for a bad day.
Three options depending on the situation:
Lightweight rubber boots – the classic option that works well for summer rain, festivals, nature and wet grass. Choose a thinner, lighter model for summer rather than heavy winter wellies.
Waterproof sneakers – look like regular shoes but handle light to moderate rain without soaking through. A good choice for urban environments, commuting and everyday use.
Low-profile waterproof hiking shoes – suits you if you're more active outdoors and need grip on varied terrain.
Sandals are fine for a light drizzle but aren't ideal in heavy rain. Choose shoes that either handle water or dry very quickly.
1. Wearing too much. More layers in summer don't mean more comfort – they mean more heat and sweating. A good rain jacket as an outer layer goes a long way in most summer situations.
2. Forgetting to pack a rain layer. Summer rain can arrive fast and without warning. A packable jacket takes up almost no space in your bag and can save your whole day – but it has to be there.
3. Prioritising waterproofing but ignoring ventilation. A jacket that blocks all rain but doesn't breathe at all can feel wetter on the inside than the outside during high activity. The balance is what matters in summer.
4. Wearing cotton socks in rubber boots. Cotton socks absorb moisture and quickly cause discomfort and blisters. Choose thin synthetic or wool socks even with boots.
You don't need much to be well prepared. Three pieces is enough:
A lightweight, packable rain jacket with ventilation and a water-repellent surface
A quick-dry base layer – a t-shirt or tank top in synthetic or merino wool
Waterproof shoes or lightweight rubber boots depending on what the day calls for
With those in place, you can move freely without having to watch the weather.
What should you wear when it rains in summer?
A lightweight, packable rain jacket is the most important piece. Pair it with a quick-dry base layer – avoid cotton – and waterproof shoes or lightweight rubber boots depending on your activity and the terrain.
Can you use a regular autumn rain jacket in summer?
It'll work, but a heavier autumn model can get too warm. A thinner, lighter jacket with better ventilation is a better choice for summer use.
Are sandals okay in summer rain?
In light drizzle, most sandals hold up fine. In heavier rain or on wet surfaces, waterproof shoes or rubber boots offer much better protection.
What should you wear under your rain jacket in summer?
Avoid cotton – choose a quick-dry material like polyester, nylon or thin merino wool. It keeps you dry and comfortable even when you're moving a lot.
Do you need rain trousers in summer?
Rarely in an urban setting, but on longer outdoor trips or in heavy rain, lightweight rain trousers can be a useful complement to your rain jacket.
How do you choose the right size summer rain jacket?
Go for a model with a little extra room – it should sit comfortably over a tank top or t-shirt without feeling restrictive. It shouldn't be so large it loses its shape, but it shouldn't feel tight either.
How waterproof does a summer rain jacket need to be?
For everyday use and moderate rain, a water-repellent surface goes a long way. For longer outdoor trips in heavy rain, a fully waterproof jacket with taped seams is the safer choice.