Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The transition into January is marked with an average high-temperature of a still enjoyable 17.6°C (63.7°F), showing an insignificant shift from December's 18.7°C (65.7°F). São Martinho's nighttime temperatures in January settle close to daytime highs at an average of 16.3°C (61.3°F).Humidity
In January, the average relative humidity in São Martinho, Portugal, is 74%.Rainfall
In January, in São Martinho, Portugal, the rain falls for 12.3 days. Throughout January, 22mm (0.87") of precipitation is accumulated. In São Martinho, during the entire year, the rain falls for 116.4 days and collects up to 232mm (9.13") of precipitation.Daylight
In January, the average length of the day in São Martinho, Portugal, is 10h and 17min.On the first day of January, sunrise is at 08:09 and sunset at 18:12. On the last day of the month, sunrise is at 08:03 and sunset at 18:39 WET.
Sunshine
The months with the least sunshine in São Martinho are January and December, with an average of 7.6h of sunshine.UV index
January through June, November and December, with an average maximum UV index of 5, are months with the lowest UV index in São Martinho. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in January translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the average January temperature in São Martinho?
What is the average humidity in January in São Martinho?
How many days does it rain in January in São Martinho?
What is the average length of the day in January in São Martinho?
When is the sunrise / sunset in January in São Martinho?
What is the month with the least sunshine in São Martinho?
How long on average sun shines in January in São Martinho?
When is the lowest UV index in São Martinho?
How high is the UV index in January in São Martinho?
Average temperature in January
São Martinho, Portugal
- Average high temperature in January: 17.6°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).
- Average low temperature in January: 16.3°C
The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).
Average pressure in January
São Martinho, Portugal
- Average pressure in January: 1024.1mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in January
São Martinho, Portugal
- Average wind speed in January: 21.1km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in January
São Martinho, Portugal
- Average humidity in January: 74%
The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).
Average rainfall in January
São Martinho, Portugal
- Average rainfall in January: 22mm
The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in January
São Martinho, Portugal
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).
Average daylight in January /
Average sunshine in January
São Martinho, Portugal
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in January
São Martinho, Portugal
- Average sunshine days in January: 12.1 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in January
São Martinho, Portugal
- Average UV index in January: 5
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in January
São Martinho, Portugal
- Average cloud cover in January: 40
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in January
São Martinho, Portugal
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
São Martinho, Portugal
Weather forecast for your location
2. Allow the app to use your location
