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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Caernarfon

Caernarfon, month by month

The best months for Caernarfon: May, Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Nov, Dec.

Month by month

  1. JanuaryAvoidListed as a month to avoid: Nov–Feb (short days, many closures).8 °C / 3 °C, 16 rain daysCrowds: Low
  2. FebruaryAvoidListed as a month to avoid: Nov–Feb (short days, many closures).8 °C / 3 °C, 13 rain daysCrowds: Low
  3. MarchGoodOutside the best window (May–Sep). Across United Kingdom: Days lengthen quickly; daffodils and lambs. Easter may fall at the end of the month.10 °C / 4 °C, 14 rain daysCrowds: Medium · 1 festival or holiday
  4. AprilGoodOutside the best window (May–Sep). Across United Kingdom: Spring gardens and parks; Easter holidays fill London sights and trains.12 °C / 5 °C, 12 rain daysCrowds: Medium
  5. MayGreatInside Caernarfon's best window: May–Sep.15 °C / 8 °C, 12 rain daysCrowds: Medium
  6. JuneGreatInside Caernarfon's best window: May–Sep.17 °C / 10 °C, 12 rain daysCrowds: High
  7. JulyGreatInside Caernarfon's best window: May–Sep.19 °C / 12 °C, 12 rain daysCrowds: High · 1 festival or holiday
  8. AugustGreatInside Caernarfon's best window: May–Sep.19 °C / 12 °C, 13 rain daysCrowds: High · 1 festival or holiday
  9. SeptemberGreatInside Caernarfon's best window: May–Sep.17 °C / 11 °C, 13 rain daysCrowds: Medium
  10. OctoberGoodOutside the best window (May–Sep). Across United Kingdom: Autumn colour, fewer crowds; clocks go back in the last week and evenings darken.14 °C / 8 °C, 16 rain daysCrowds: Medium
  11. NovemberAvoidListed as a month to avoid: Nov–Feb (short days, many closures).11 °C / 6 °C, 17 rain daysCrowds: Low
  12. DecemberAvoidListed as a month to avoid: Nov–Feb (short days, many closures).9 °C / 4 °C, 17 rain daysCrowds: Medium · 1 festival or holiday