Why Getting Baby's Temperature Right Is So Important
Babies cannot regulate their own body temperature the way adults can — they rely entirely on us to dress them appropriately. Overheating has been linked to increased risk during sleep, and being too cold can disturb a baby's rest and wellbeing. Getting the balance right sounds tricky, but a few simple principles make it straightforward.
The key rule of thumb: dress your baby in one more layer than you are wearing in the same environment. Then check regularly by feeling the back of their neck or their tummy — not their hands or feet, which are naturally cooler.
Spring Dressing (Roughly 12–16°C)
Spring is changeable, so layering is your best friend. Think light and adaptable:
- A long-sleeved vest as a base layer
- A light cotton sleepsuit or outfit on top
- A medium-weight cardigan or zip-up fleece for outdoors
- A light hat if it's windy or below 14°C
For the pram or pushchair, a footmuff or blanket tucked in at the sides (not over the face) adds warmth without overheating.
Summer Dressing (17°C and above)
In warm weather, less is more — but sun protection becomes the priority:
- A short-sleeved vest or lightweight cotton outfit is often enough indoors.
- Outdoors, cover arms and legs with light, loose-fitting cotton clothing to prevent sunburn.
- A wide-brimmed sun hat is essential for direct sunlight.
- Keep baby out of direct sun between 11am and 3pm.
- Use baby-specific SPF 30+ sunscreen on exposed skin for babies over 6 months.
For sleep on warm nights, a short-sleeved vest alone or a low-tog sleeping bag may be sufficient. Always check a tog guide for the room temperature.
Autumn Dressing (10–15°C)
As temperatures drop, it's time to reintroduce layers:
- A long-sleeved vest as a base
- A warm sleepsuit or outfit
- A knitted cardigan or warm gilet for outings
- A knit hat and mittens for very cool days
Transition seasons can swing between chilly mornings and mild afternoons. Keep a spare layer in your change bag so you can adjust on the go.
Winter Dressing (Below 10°C)
Cold weather requires warmth without bulk that could restrict movement or circulation:
- A thermal or ribbed long-sleeved vest as a base layer
- A warm sleepsuit or outfit with feet
- A thick fleece or wool cardigan
- A lined, waterproof snowsuit or all-in-one for outdoors
- Warm hat, mittens, and booties
Important: Always remove your baby's outdoor layers (hat included) once you're indoors or in a warm car. Overheating indoors during winter is a common and easily avoided mistake.
Sleeping Bag Tog Guide at a Glance
| Room Temperature | Recommended Tog | What to Wear Underneath |
|---|---|---|
| Above 24°C | 0.5 tog | Vest only |
| 20–24°C | 1 tog | Short-sleeved vest |
| 16–20°C | 2.5 tog | Long-sleeved vest or sleepsuit |
| Below 16°C | 3.5 tog | Sleepsuit plus long-sleeved vest |
Quick Checklist Before Going Out
- Check the weather — not just the temperature, but wind and rain too.
- Dress in layers you can easily add or remove.
- Always carry a spare hat and an extra layer in your bag.
- Check baby's neck temperature regularly.
- Remove outdoor layers promptly when entering warm spaces.
With a little practice, dressing your baby for the weather becomes second nature. Trust your instincts, check regularly, and remember — you're learning alongside your baby every single day.