Azores records about 1200mm of rain across roughly 140 wet days a year, which is a 38% chance on an average day. December is the wettest month at 142mm (12% of the annual total) and July the driest at 36mm. Local rain type: steady rain. The Azores get substantial rain — "four seasons in one day" is literal here. Quick-dry clothing and waterproofs are essential.
Chance of rain on an average day: 38%
Rainfall climatology for Azores. 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 | 1200mm |
| Rain days per year | 140 |
| Odds on an average day | 38% |
| Wettest month | December — 142mm over 18 days |
| Driest month | July — 36mm over 5 days |
| Rain type | steady rain |
| Best dry window | June through August offers the warmest, driest conditions. |
| Worst rain window | November through February brings Atlantic storms with heavy rain and wind. |
December delivers 294% more rain than July (142mm vs 36mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 12% of the annual total, so rain in Azores is spread through the year — there is no season you can rely on being dry.
Azores rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 18 days in December against 5 in July — 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 | 128mm | 16 | 53% | 16°C |
| February | 102mm | 13 | 43% | 16°C |
| March | 100mm | 13 | 43% | 17°C |
| April | 80mm | 10 | 33% | 19°C |
| May | 72mm | 9 | 30% | 21°C |
| June | 52mm | 7 | 23% | 23°C |
| July | 36mm | 5 | 17% | 24°C |
| August | 55mm | 7 | 23% | 24°C |
| September | 92mm | 12 | 40% | 23°C |
| October | 112mm | 14 | 47% | 21°C |
| November | 122mm | 16 | 53% | 19°C |
| December | 142mm | 18 | 60% | 17°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Azores 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.
Azores records rain on roughly 140 days a year — about a 38% chance on any given day — totalling around 1200mm.
December, with about 142mm over 18 rain days. That is 12% of the entire year's rainfall in a single month.
July is the driest month at 36mm across roughly 5 days. June through August offers the warmest, driest conditions.
The Azores get substantial rain — "four seasons in one day" is literal here. Quick-dry clothing and waterproofs are essential.
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.