The best times to visit Sao Miguel Island for ideal weather are
May 14th to September 9th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Sao Miguel Island Travel Guide
Other Sao Miguel Island Travel Info
Weather in Sao Miguel Island
Temperature
Average temperatures in Sao Miguel Island vary little. Considering humidity, temperatures feel very enjoyable all year with a fair chance of precipitation about half of the year. The area is more temperate than most — in the 77th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Sao Miguel Island, the hottest months are August, September, and then July. See average monthly temperatures below. The warmest time of year is generally mid to late August where highs are regularly around 77.7°F (25.4°C) with temperatures rarely dropping below 67.6°F (19.8°C) at night.
Sao Miguel Island Temperatures (Fahrenheit)
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Sao Miguel Island Temperatures (Celsius)
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“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Sao Miguel Island Perceived Temperature (F)
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Sao Miguel Island Perceived Temperature (C)
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Average Sao Miguel Island Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 62.4 | 58.9 | 54.8 |
| Feb | 61.8 | 58 | 53.8 |
| Mar | 62.1 | 57.9 | 53.8 |
| Apr | 63.5 | 58.9 | 54.8 |
| May | 66.5 | 61.6 | 57.6 |
| Jun | 70.6 | 65.5 | 61.4 |
| Jul | 74.9 | 69.4 | 65 |
| Aug | 77.4 | 71.6 | 66.9 |
| Sep | 74.9 | 69.7 | 65.2 |
| Oct | 71.1 | 66.9 | 62.7 |
| Nov | 65.9 | 62.1 | 57.8 |
| Dec | 63.3 | 59.9 | 55.6 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 16.9 | 14.9 | 12.7 |
| Feb | 16.6 | 14.4 | 12.1 |
| Mar | 16.7 | 14.4 | 12.1 |
| Apr | 17.5 | 14.9 | 12.7 |
| May | 19.2 | 16.4 | 14.2 |
| Jun | 21.4 | 18.6 | 16.3 |
| Jul | 23.8 | 20.8 | 18.3 |
| Aug | 25.2 | 22 | 19.4 |
| Sep | 23.8 | 20.9 | 18.4 |
| Oct | 21.7 | 19.4 | 17.1 |
| Nov | 18.8 | 16.7 | 14.3 |
| Dec | 17.4 | 15.5 | 13.1 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sao Miguel Island are August, June, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid August. For example, on the week of August 6th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early April with an average of 3 days of significant precipitation the week of April 2nd.
When can you find snow in Sao Miguel Island? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Sao Miguel Island.
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Snow on the Ground
The graph below shows the average snow on the ground in Sao Miguel Island (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 21% | 0 | 3.1 |
| Feb | 27% | 0 | 3.6 |
| Mar | 23% | 0 | 4.1 |
| Apr | 27% | 0 | 3.8 |
| May | 16% | 0 | 2.5 |
| Jun | 12% | 0 | 1.5 |
| Jul | 12% | 0 | 1.3 |
| Aug | 7% | 0 | 1.5 |
| Sep | 22% | 0 | 3 |
| Oct | 32% | 0 | 3.9 |
| Nov | 23% | 0 | 3.6 |
| Dec | 36% | 0 | 6.3 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 21 | 0 | 7.9 |
| Feb | 27 | 0 | 9.1 |
| Mar | 23 | 0 | 10.4 |
| Apr | 27 | 0 | 9.7 |
| May | 16 | 0 | 6.4 |
| Jun | 12 | 0 | 3.8 |
| Jul | 12 | 0 | 3.3 |
| Aug | 7 | 0 | 3.8 |
| Sep | 22 | 0 | 7.6 |
| Oct | 32 | 0 | 9.9 |
| Nov | 23 | 0 | 9.1 |
| Dec | 36 | 0 | 16 |
Humidity and Wind
Sao Miguel Island has some very humid months, and high humidity throughout the year. The least humid month is September (70.7% relative humidity), and the most humid month is January (76%).
Wind in Sao Miguel Island is usually moderate. The windiest month is February, followed by December and March. February’s average wind speed of around 10.6 knots (12.2 MPH or 19.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late December where average top sustained speeds reach 19.3 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Sao Miguel Island.
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Wind
The graph below shows wind speed (max and average) in knots.
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Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 9.8 | Gentle breeze | 16.6 | Significant breeze |
| Feb | 10.6 | Gentle breeze | 17.8 | Strong breeze |
| Mar | 9.9 | Gentle breeze | 16.6 | Significant breeze |
| Apr | 9.3 | Gentle breeze | 16 | Significant breeze |
| May | 8.4 | Gentle breeze | 14.4 | Significant breeze |
| Jun | 7.7 | Gentle breeze | 13.7 | Significant breeze |
| Jul | 6.9 | Light breeze | 12.6 | Significant breeze |
| Aug | 7 | Gentle breeze | 12.8 | Significant breeze |
| Sep | 7.5 | Gentle breeze | 13.7 | Significant breeze |
| Oct | 9 | Gentle breeze | 15.7 | Significant breeze |
| Nov | 8.7 | Gentle breeze | 15.5 | Significant breeze |
| Dec | 10.3 | Gentle breeze | 17.7 | Strong breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 76% |
| Feb | 74.6% |
| Mar | 72.7% |
| Apr | 73.6% |
| May | 73.2% |
| Jun | 74.9% |
| Jul | 74.2% |
| Aug | 72.5% |
| Sep | 70.7% |
| Oct | 74.2% |
| Nov | 71.7% |
| Dec | 74.8% |
Is it Safe to Travel to Sao Miguel Island?
Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Portugal; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 30, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Sao Miguel Island, Portugal is January, followed by February and October. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Sao Miguel Island in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Sao Miguel Island Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 68.4°F (20.2°C) and 61.9°F (16.6°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 8 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with 2 to 4 days of precipitation per month. June – August is the second busiest season for tourism in Sao Miguel Island, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 76.4°F (24.7°C) and 63.6°F (17.6°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 7 to 10 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is somewhat cool this time of year in Sao Miguel Island to be enjoyable for warm weather travelers. The average high during this season is between 64°F (17.8°C) and 61.3°F (16.3°C). On average, it rains or snows a fair amount: 6 to 11 times per month. These times of year are the busiest with tourists.
Best Times to Travel› Portugal › Sao Miguel Island, Portugal