January in Notre-Dame Cathedral — off-season conditions
Hardest · 4.3/10January averages 4°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 60 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 8.5 hours of daylight.
It scores 4.3/10 here, 12th of 12 months, against 9.4/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
Flexible dates? August scores 5.1 points higher here — enough to change the trip.
February in Notre-Dame Cathedral — workable with trade-offs
Trade-offs · 5.6/10February averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Expect 42 mm of rain — occasional showers rather than washed-out days — alongside almost no days with 6+ hours of sunshine and 9.9 daylight hours.
It scores 5.6/10 here, 9th of 12 months, against 9.4/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
Flexible dates? August scores 3.8 points higher here — enough to change the trip.
March in Notre-Dame Cathedral — workable with trade-offs
Trade-offs · 6.2/10Expect 8°C (47°F) in March. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 62 mm of rain this month — a flexible day or two helps — with about 6 days with 6+ hours of sunshine and 11.6 hours of daylight to work around it.
That is 6.2/10 on the same scale — 7th of 12 months, versus 9.4/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Notre-Dame Cathedral — 3.2 points higher on the same scale.
April in Notre-Dame Cathedral: strong conditions, 6th of 12
Good · 7.6/10April averages 10°C (50°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 59 mm, so plan one flexible day in three; you still get about 15 days with 6+ hours of sunshine and 13.5 hours of daylight.
It scores 7.6/10 here, 6th of 12 months, against 9.4/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? August scores 1.8 points higher here — enough to change the trip.
May is one of the strongest months in Notre-Dame Cathedral (3rd)
Best window · 8.8/10Temperatures hover around 15°C (59°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 61 mm of rain this month — a flexible day or two helps — with about 24 days with 6+ hours of sunshine and 15.1 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Notre-Dame Cathedral at 8.8/10 (3rd of 12), just behind August at 9.4/10.
Budget for mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
June in Notre-Dame Cathedral — one of the year's strongest windows (4th)
Best window · 8.7/10June averages 19°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 75 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 15.9 hours of daylight.
A 8.7/10 puts this among the year's best months in Notre-Dame Cathedral (4th of 12); only August scores higher, at 9.4/10.
Plan for mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
July is one of the strongest months in Notre-Dame Cathedral (2nd)
Best window · 9/10July averages 20°C (68°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 66 mm, so plan one flexible day in three; you still get about 27 days with 6+ hours of sunshine and 15.6 hours of daylight.
A 9/10 puts this among the year's best months in Notre-Dame Cathedral (2nd of 12); only August scores higher, at 9.4/10.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection, a packable rain layer.
August in Notre-Dame Cathedral tops the year's climate scores
Best window · 9.4/10At 21°C (69°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 47 mm of rain this month — a flexible day or two helps — with about 21 days with 6+ hours of sunshine and 14.2 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Notre-Dame Cathedral at 9.4/10 — the reference point every other month on this page is measured against.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection, a packable rain layer.
September in Notre-Dame Cathedral — reliably good (5th best month)
Good · 7.7/10Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 75 mm of rain this month — a flexible day or two helps — with about 10 days with 6+ hours of sunshine and 12.3 hours of daylight to work around it.
That is 7.7/10 on the same scale — 5th of 12 months, versus 9.4/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, August is materially better in Notre-Dame Cathedral — 1.7 points higher on the same scale.
October in Notre-Dame Cathedral: mixed conditions, plan around the weather
Trade-offs · 6.1/10October averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 88 mm, so plan one flexible day in three; you still get about 1 days with 6+ hours of sunshine and 10.5 hours of daylight.
It scores 6.1/10 here, 8th of 12 months, against 9.4/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? August scores 3.3 points higher here — enough to change the trip.
November in Notre-Dame Cathedral — the hardest end of the year
Hardest · 4.9/10November averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 73 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 8.9 hours of daylight.
It scores 4.9/10 here, 10th of 12 months, against 9.4/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? August scores 4.5 points higher here — enough to change the trip.
December in Notre-Dame Cathedral — the hardest end of the year
Hardest · 4.5/10Expect 5°C (41°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 59 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 8.1 hours of daylight to work around it.
That is 4.5/10 on the same scale — 11th of 12 months, versus 9.4/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Notre-Dame Cathedral — 4.9 points higher on the same scale.
