Heathrow
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Heathrow Weather in March

March in Heathrow averages 12°C (54°F) during the day and 4°C (39°F) at night. With just 48 mm (1.9 in) of rainfall on average, it doesn't get much drier than this.

Rainfall in Heathrow in March

Take advantage of the dry conditions this month, with minimal rain expected, even if it's a cooler time of year. Typically, you can expect about 15 days of rain this month, with 48 mm (1.9 in) on average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Heathrow in March

March in Heathrow brings low temperatures, with highs of 12°C (54°F) and nights around 4°C (39°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Heathrow in March

You can expect a moderate amount of sunlight, with approximately 126 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Heathrow in March

March sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

For Heathrow itself, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Heathrow Temperature in March

Min Temperature
4°C (39°F)
Max Temperature
12°C (54°F)
Chance of Rain
51%
Precipitation
48 mm (1.9 in)
Rainy days
15 days
Humidity
71% *
Windspeed
4 m/s (8 knots) *
Sunshine
126 hours *
Percentage Sunshine
31% *

Heathrow Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Heathrow - and find the best time to visit.

Best Places in the United Kingdom in March

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in March →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Heathrow in March

The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Heathrow in March

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    5/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    5/10
  • Outdoor sports
    6/10

Heathrow 3-Day Forecast

Popular in March

Where to go in March - average daytime high across popular destinations.

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