January in Brussels — off-season conditions
Hardest · 3.9/10January averages 4°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 77 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 8.2 hours of daylight.
It scores 3.9/10 here, 11th of 12 months, against 8.9/10 in the destination's best month.
Plan for 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? July scores 5 points higher here — enough to change the trip.
February in Brussels: expect compromises
Hardest · 4.8/10February averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 71 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 9.7 hours of daylight.
It scores 4.8/10 here, 9th of 12 months, against 8.9/10 in the destination's best month.
Plan for 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? July scores 4.1 points higher here — enough to change the trip.
March in Brussels — workable with trade-offs
Trade-offs · 5/10Expect 7°C (45°F) in March. A good month for city streets, viewpoints and long meals; leave swimming for another season.
113 mm of rain signals a properly wet month, with only about 5 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5/10 on the same scale — 8th of 12 months, versus 8.9/10 for the best month here.
Budget for 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 proper rain shell rather than an umbrella.
If your dates are flexible, July is materially better in Brussels — 3.9 points higher on the same scale.
April in Brussels: strong conditions, 5th of 12
Good · 7.2/10April averages 10°C (49°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 13 days with 6+ hours of sunshine and 13.6 hours of daylight.
It scores 7.2/10 here, 5th of 12 months, against 8.9/10 in the destination's best month.
Figure on 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? July scores 1.7 points higher here — enough to change the trip.
May in Brussels: strong conditions, 4th of 12
Good · 8.2/10Temperatures hover around 14°C (58°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 77 mm of rain this month — a flexible day or two helps — with about 21 days with 6+ hours of sunshine and 15.3 hours of daylight to work around it.
That is 8.2/10 on the same scale — 4th of 12 months, versus 8.9/10 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.
June in Brussels — one of the year's strongest windows (2nd)
Best window · 8.7/10June averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 69 mm, so plan one flexible day in three; you still get about 26 days with 6+ hours of sunshine and 16.3 hours of daylight.
A 8.7/10 puts this among the year's best months in Brussels (2nd of 12); only July scores higher, at 8.9/10.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
July in Brussels — the year's strongest window
Best window · 8.9/10July averages 19°C (66°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 64 mm, so plan one flexible day in three; you still get about 24 days with 6+ hours of sunshine and 15.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Brussels at 8.9/10 — the reference point every other month on this page is measured against.
Plan for 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 layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
August ranks 3rd of 12 for Brussels — one of the best windows
Best window · 8.6/10At 20°C (67°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 67 mm of rain this month — a flexible day or two helps — with about 19 days with 6+ hours of sunshine and 14.3 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Brussels at 8.6/10 (3rd of 12), just behind July at 8.9/10.
Expect 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 Brussels — reliably good (6th best month)
Good · 7.1/10Temperatures hover around 17°C (62°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 95 mm of rain this month — a flexible day or two helps — with about 9 days with 6+ hours of sunshine and 12.4 hours of daylight to work around it.
That is 7.1/10 on the same scale — 6th of 12 months, versus 8.9/10 for the best month here.
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.
If your dates are flexible, July is materially better in Brussels — 1.8 points higher on the same scale.
October in Brussels: mixed conditions, plan around the weather
Trade-offs · 6.3/10October averages 13°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 65 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 10.4 hours of daylight.
It scores 6.3/10 here, 7th of 12 months, against 8.9/10 in the destination's best month.
Figure on 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.
Flexible dates? July scores 2.6 points higher here — enough to change the trip.
November in Brussels: expect compromises
Hardest · 4.5/10November averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 88 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 8.6 hours of daylight.
It scores 4.5/10 here, 10th of 12 months, against 8.9/10 in the destination's best month.
Plan for 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? July scores 4.4 points higher here — enough to change the trip.
December in Brussels — the hardest end of the year
Hardest · 3.8/10Expect 5°C (40°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 85 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 7.7 hours of daylight to work around it.
That is 3.8/10 on the same scale — 12th of 12 months, versus 8.9/10 for the best month here.
Budget for 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, July is materially better in Brussels — 5.1 points higher on the same scale.
