December could be a good time to visit Terceira Island, as the weather is generally fine. The average high temperature is around +14°C, and there are typically 1 sunny days in December. However, expect about 19 rainy days, and total monthly rainfall of approximately 113 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+14°C
Avg. max. temperature
+6°C
Min.
+19°C
Max.
113 mm
Total precipitation
79%
Avg. humidity
4 m/s
Avg. wind
1 ☀️
Sunny Days
11 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Terceira Island has OK weather in December.
Average temperature in Terceira Island in December
Here are the expected maximum, average and minimum temperatures in Terceira Island for December based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in December is +14°C with a maximum of +16°C and a minimum of +11°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +14°C to +14°C.
Is Terceira Island warm or cold in December?
Terceira Island is typically mild in December.
Maximum temperatures go down compared to the previous month from +15°C to +14°C. The minimum temperature also goes down from +13°C to +12°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how December is compared to other months in Terceira Island:
Climate in Terceira Island in December
Terceira Island weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+15°C
+14°C
+13°C
Min. temperature
+6°C
+6°C
+5°C
Max. temperature
+22°C
+19°C
+18°C
Rainfall
90 mm
113 mm
79 mm
Wind
4 m/s
4 m/s
4 m/s
Humidity
78%
79%
79%
Air pressure
1019 HPa
1019 HPa
1021 HPa
Sunny days
1
1
0
Cloudy days
11
11
12
Rainy days
18
19
19
Snowy days
0
0
0
December weather is still as ok as in November.It’s getting colder in December. From +15°C in the day, the average maximum temperature lowers to +14°C.Prepare for more rain. Average rainfall goes from 90 mm to 113 mm.Humidity rises from 78% to 79%.The average wind speed doesn’t change much during December, staying around 4 m/s.The amount of sunny days stay about the same, averaging 1 sunny days during the month.
January brings much the same weather, it remains ok.
Wind speed in Terceira Island in December based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Terceira Island is gradually decreasing during December, going from 2 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Terceira Island based on historical data.
Last Year
Historical Data
Total precipitation in December is about 107 mm, with a 52% chance of rain on a typical day. The maximum amount of rainfall per day is around 19 mm, which is considered light rain.December is a pretty wet month with over 16 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
December is one of the rainiest months in Terceira Island, here is a comparison with other months, total mm:
Terceira Island wettest month is December, where a typical day has a 61% chance of precipitation and 113 mm of rainfall per day. July, on the other hand, is the driest month with a mere 32% chance of precipitation and 19 mm of rainfall per day.
How was the weather last December in Terceira Island?
This is the weather in Terceira Island in December 2023:
1 December
☁️
+14°C
2 December
🌧️
+15°C
3 December
☁️
+13°C
4 December
☀️
+14°C
5 December
☀️
+16°C
6 December
🌫️
+16°C
7 December
☀️
+15°C
8 December
☁️
+16°C
9 December
🌧️
+16°C
10 December
☀️
+16°C
11 December
☀️
+14°C
12 December
☀️
+12°C
13 December
☁️
+13°C
14 December
🌧️
+14°C
15 December
☁️
+15°C
16 December
☁️
+16°C
17 December
🌧️
+15°C
18 December
🌧️
+16°C
19 December
🌧️
+14°C
20 December
☁️
+15°C
21 December
☁️
+14°C
22 December
☁️
+14°C
23 December
☁️
+14°C
24 December
☁️
+14°C
25 December
☁️
+15°C
26 December
🌧️
+15°C
27 December
☁️
+13°C
28 December
☁️
+14°C
29 December
☁️
+13°C
30 December
☀️
+14°C
31 December
☀️
+14°C
In December 2023 Terceira Island had 8 sunny days, 15 cloudy days, and 7 rainy days. The average maximum temperature was +14°C, with an absolute maximum of +16°C and a minimum of +12°C. The average humidity was 75%, with a maximum of 96% and a minimum of 53%. The average wind speed was 3 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how Terceira Island climate have been changing during last 43 years period.
The climate in Terceira Island in December has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+14°C) and the highest in 2017 (+18°C). The driest year was 1999 with only 487 mm of rainfall, and the wettest year was 2021 with 1425 mm.
FAQ
Frequently asked questions about the weather in Terceira Island in December:
Is December a good time to visit Terceira Island?
It’s always a good time to visit Terceira Island, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Terceira Island in December?
December has mild temperatures in Terceira Island. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Terceira Island rainy in December?
Terceira Island is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Terceira Island in December?
Usually, it’s not very sunny in Terceira Island in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Portugal
Check out the weather for other cities in Portugal.
For this page, we’ve looked at the typical weather in Terceira Island, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.