Amsterdam records about 838mm of rain across roughly 175 wet days a year, which is a 48% chance on an average day. October is the wettest month at 90mm (11% of the annual total) and April the driest at 42mm. Local rain type: drizzle. Always have one, but a good waterproof jacket works better in the wind. Amsterdam drizzle can persist all day but is rarely heavy enough to disrupt plans.
Chance of rain on an average day: 48%
Rainfall climatology for Amsterdam. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 838mm |
| Rain days per year | 175 |
| Odds on an average day | 48% |
| Wettest month | October — 90mm over 19 days |
| Driest month | April — 42mm over 9 days |
| Rain type | drizzle |
| Best dry window | April through June offers the most pleasant weather with blooming tulips and longer days. |
| Worst rain window | October through December is the wettest period with persistent overcast skies. |
October delivers 114% more rain than April (90mm vs 42mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 11% of the annual total, so rain in Amsterdam is spread through the year — there is no season you can rely on being dry.
Amsterdam rain is mostly persistent drizzle, where a waterproof shell beats an umbrella.
Rain falls on about 19 days in October against 9 in April — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 68mm | 14 | 47% | 6°C |
| February | 47mm | 10 | 33% | 6°C |
| March | 63mm | 13 | 43% | 8°C |
| April | 42mm | 9 | 30% | 12°C |
| May | 55mm | 11 | 37% | 16°C |
| June | 70mm | 14 | 47% | 20°C |
| July | 85mm | 18 | 60% | 22°C |
| August | 83mm | 17 | 57% | 22°C |
| September | 85mm | 18 | 60% | 20°C |
| October | 90mm | 19 | 63% | 16°C |
| November | 85mm | 18 | 60% | 12°C |
| December | 76mm | 16 | 53% | 8°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Amsterdam we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Amsterdam records rain on roughly 175 days a year — about a 48% chance on any given day — totalling around 838mm.
October, with about 90mm over 19 rain days. That is 11% of the entire year's rainfall in a single month.
April is the driest month at 42mm across roughly 9 days. April through June offers the most pleasant weather with blooming tulips and longer days.
Always have one, but a good waterproof jacket works better in the wind. Amsterdam drizzle can persist all day but is rarely heavy enough to disrupt plans.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.