UTC Offset
UTC+01:00
Swanley, United Kingdom Snapshot 2026
Where is Swanley?
Swanley, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Swanley
- Population
- 21.8K
- Coordinates
- 51.40°, 0.17°
Swanley is a city in United Kingdom with a population of approximately 21.8K. Average temperatures range from 2°C (36°F) in January to 22°C (71°F) in July. The best time to visit is May, June, July, August, September.
Time in Swanley right now
Open full time & time zone page 04:07 07
Tuesday, June 16, 2026
IANA time zone
Europe/London
Daylight saving
DST in effect
GMT / BST
Next DST change
October 25
backward -1h
Live weather in Swanley
Daylight in Swanley today
View full sunrise & sunset page Sunrise
Sunset
Day length
16h 36m
Climate normals for Swanley
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Good June best
Good July best
Excellent August best
Excellent September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 2°C | 3°C / -2°C | 11days (57 mm) Wet | 3.8h Poor | 87% Very Muggy | 1.1 Low | Poor | View Details |
| February | 9°C / 3°C | 5°C / -1°C | 11days (48 mm) Wet | 5h Fair | 83% Humid | 1.6 Low | Poor | View Details |
| March | 10°C / 4°C | 7°C / 0°C | 12days (52 mm) Wet | 6.9h Fair | 80% Humid | 3.3 Moderate | Poor | View Details |
| April | 13°C / 5°C | 10°C / 2°C | 9days (41 mm) Wet | 10.1h Excellent | 75% Muggy | 4.8 Moderate | Fair | View Details |
| May best | 17°C / 9°C | 15°C / 6°C | 10days (50 mm) Wet | 11.1h Excellent | 75% Muggy | 5.6 High | Good | View Details |
| June best | 20°C / 12°C | 19°C / 11°C | 9days (60 mm) Wet | 11.6h Excellent | 74% Muggy | 6.3 High | Good | View Details |
| July best | 22°C / 14°C | 21°C / 13°C | 10days (52 mm) Wet | 11h Excellent | 71% Muggy | 5.7 High | Excellent | View Details |
| August best | 22°C / 14°C | 21°C / 13°C | 8days (52 mm) Wet | 10.3h Excellent | 74% Muggy | 5.3 High | Excellent | View Details |
| September best | 19°C / 12°C | 17°C / 10°C | 10days (53 mm) Wet | 8.3h Good | 78% Humid | 4.1 Moderate | Good | View Details |
| October | 15°C / 9°C | 13°C / 7°C | 11days (67 mm) Wet | 6h Fair | 83% Humid | 2.4 Moderate | Fair | View Details |
| November | 10°C / 6°C | 8°C / 2°C | 10days (60 mm) Wet | 4.3h Fair | 87% Very Muggy | 1.3 Low | Poor | View Details |
| December | 9°C / 4°C | 5°C / 0°C | 11days (63 mm) Wet | 2.9h Poor | 89% Very Muggy | 0.8 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 7°C / 2°C . Feb: 9°C / 3°C . Mar: 10°C / 4°C . Apr: 13°C / 5°C . May: 17°C / 9°C . Jun: 20°C / 12°C . Jul: 22°C / 14°C . Aug: 22°C / 14°C . Sep: 19°C / 12°C . Oct: 15°C / 9°C . Nov: 10°C / 6°C . Dec: 9°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 57 mm. Feb: 48 mm. Mar: 52 mm. Apr: 41 mm. May: 50 mm. Jun: 60 mm. Jul: 52 mm. Aug: 52 mm. Sep: 53 mm. Oct: 67 mm. Nov: 60 mm. Dec: 63 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 83%. Mar: 80%. Apr: 75%. May: 75%. Jun: 74%. Jul: 71%. Aug: 74%. Sep: 78%. Oct: 83%. Nov: 87%. Dec: 89%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 24 km/h . Mar: 23 km/h . Apr: 20 km/h . May: 19 km/h . Jun: 19 km/h . Jul: 18 km/h . Aug: 19 km/h . Sep: 20 km/h . Oct: 21 km/h . Nov: 22 km/h . Dec: 23 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. Apr: UV 5. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 5. Sep: UV 4. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Frequently Asked Questions
Swanley has a population of approximately 21.8K.
The best months to visit Swanley are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Swanley receives approximately 655mm of rainfall annually across 122 rainy days.
Swanley is located in United Kingdom, in the Europe region.