The hottest month in Surrey is typically August, with daytime highs averaging around 23.8°C (75°F), based on 10 years of historical weather data. Overnight lows during this period average near 13.8°C (57°F).

What is the coldest month in Surrey?

The coldest month in Surrey is typically February, with overnight lows averaging around -0.1°C (32°F) and daytime highs near 6.3°C (43°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.

Does Surrey have a rainy season?

Surrey doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. November is the wettest month on average (about 252 mm), while July is the driest (about 28 mm).

What's the best time of year to visit Surrey?

The best time to visit Surrey is typically July to August, when daytime highs average a comfortable 23.6°C (74°F). Rainfall during this window averages around 32 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.

Is Surrey's air quality safe right now?

As of the latest reading, Surrey's air quality index (AQI) is 24, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.

Atmospheric Details

Wind

4 km/h

WSW · Light Breeze · Max 11 km/h

Humidity

95 %

High · feels muggy

UV Index

Moderate

Visibility

10 km

Excellent

Pressure

1005 hPa

Stable

Dew Point

10°C

Comfortable

Today vs Normal

18°C-1° below normal

The long-term average high for today is 19°C.

15 of the last 28 days with published data ran above normal.

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

Red = above normal, blue = at or below · last 12 days

Air Quality

Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Health & Activity Advice

✅ Good for Outdoors

UV index is 4 today — moderate. Sunscreen is worth using for extended time outside, but no special precautions are needed for short trips.

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Conditions are comfortable for outdoor activity at most points during the day today.