When to go · United Kingdom
When to go to Londonderry
When to go
What the averages say
No month in Londonderry averages a high of 18°C or more; the warmest, July, averages 17°C.
- Cold months (a mean high under 10°C): November to March.
- The warmest month is July (17°C) and the coolest January (7°C). The wettest is November (126 mm) and the driest April (72 mm); about 1,278 mm of rain falls in a year.
How these sentences are worded
Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.
The year at a glance
- Mild to warm and dry
- Mild to warm, humid or showery
- Hot
- Cool
- Wet
- Cold
- JanCold
- FebCold
- MarCold
- AprCool
- MayCool
- JunCool
- JulCool
- AugCool
- SeptCool
- OctCool
- NovCold
- DecCold
Month by month
Every month in Londonderry
| Month | High | Low | Rain | Humidity | Cloud | Sunlight (kWh/m²/day) | High in Dubai | What it is like |
|---|---|---|---|---|---|---|---|---|
| January | 7°C | 3°C | 122 mm | 91% | 81% | 0.6 | 23°C | Cold |
| February | 7°C | 3°C | 95 mm | 90% | 79% | 1.3 | 24°C | Cold |
| March | 8°C | 3°C | 91 mm | 89% | 78% | 2.3 | 27°C | Cold |
| April | 10°C | 5°C | 72 mm | 86% | 76% | 3.7 | 31°C | Cool |
| May | 13°C | 7°C | 91 mm | 85% | 76% | 4.6 | 35°C | Cool |
| June | 15°C | 10°C | 100 mm | 85% | 80% | 4.7 | 37°C | Cool |
| July | 17°C | 11°C | 113 mm | 86% | 80% | 4.3 | 39°C | Cool |
| August | 17°C | 11°C | 121 mm | 87% | 80% | 3.6 | 39°C | Cool |
| September | 15°C | 10°C | 99 mm | 88% | 78% | 2.7 | 37°C | Cool |
| October | 12°C | 8°C | 123 mm | 90% | 77% | 1.5 | 34°C | Cool |
| November | 9°C | 6°C | 126 mm | 91% | 79% | 0.8 | 29°C | Cold |
| December | 7°C | 4°C | 125 mm | 92% | 80% | 0.4 | 25°C | Cold |
The Dubai column is Dubai's mean daily high, for comparison.
Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
When to go nearby
When to go nearby
- Belfast99 kmNo month mild to warm and not wet
- Dublin198 kmGood for going: July and August
- Douglas205 kmNo month mild to warm and not wet
- Glasgow215 kmNo month mild to warm and not wet
- Edinburgh280 kmGood for going: July
- Dundee317 kmGood for going: July
- Preston328 kmGood for going: July and August
- Birkenhead331 kmGood for going: July and August
Plan it
Plan a trip to Londonderry
Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.