In general the best time to visit Isla Terceira is probably August, when the weather is usually great. The hottest months are July, August, September, while the coldest months are January, February, March.
July usually has good weather. Average maximum temperature reaches +19°C during July.
In January, February, March, April, May, June, August, September, October, November, December the weather is average. Expect around 179 rainy days, and the precipitation amounts to approximately 111 mm in December.
Climate in Isla Terceira
Here is the detailed breakdown of the climate in Isla Terceira for each month:
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Maximum Temperature
+18°C
+19°C
+20°C
+22°C
+22°C
+25°C
+27°C
+27°C
+26°C
+24°C
+22°C
+19°C
Average Maximum Temperature
+13°C
+12°C
+13°C
+13°C
+15°C
+17°C
+19°C
+20°C
+19°C
+17°C
+15°C
+14°C
Minimum Temperature
+5°C
+4°C
+4°C
+5°C
+7°C
+10°C
+12°C
+14°C
+12°C
+8°C
+6°C
+6°C
Avg. water temperature
-
-
-
-
-
-
-
-
-
-
-
-
Humidity, %
79
78
79
80
81
83
83
81
80
79
78
79
Rain, mm
80
78
81
65
49
34
19
36
58
92
90
111
Snow, mm
0
0
0
0
0
0
0
0
0
0
0
0
Average wind speed, m/s
4
4
4
4
4
3
3
3
3
4
4
5
Sunny Days
1
0
1
1
1
2
3
3
2
1
1
1
Cloud Days
12
11
13
14
16
17
18
14
12
10
11
11
Rainy Days
19
17
17
15
14
11
10
13
16
20
18
19
Snowy Days
0
0
0
0
0
0
0
0
0
0
0
0
Average Temperature
Here are the average maximum and minimum temperatures in Isla Terceira during the whole year:
The hottest month in Isla Terceira is August with average maximum temperature going up to +20°C. The coldest month is February with the lowest temperatures of +10°C.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Isla Terceira looks throughout the year, in %:
The most humid month in Isla Terceira is July with average humidity going up to 83%. The least humid month is February with an average humidity of 78%.
Rain
Amount of rainfall in mm. in Isla Terceira during the whole year based on historical data:
The sunniest and driest month is July with approximately 3 sunny days and a total precipitation of around 19 mm. The rainiest and wettest month is December with approximately 19 rainy days and 111 mm of total precipitation.
FAQ
Frequently asked questions about the weather in Isla Terceira:
What is the hottest month in Isla Terceira?
The hottest month in Isla Terceira is August with average maximum temperature of +20°C.
What is the coldest month in Isla Terceira?
The coldest month in Isla Terceira is February with minimum temperatures of +10°C.
Is Isla Terceira worth visiting in winter?
Winter in Isla Terceira could be a good time to visit, as the weather is generally ok.
When does it rain the least in Isla Terceira?
if you're looking to visit Isla Terceira when it rains the least, you should plan your trip for December, October, November. During this time, rainfall is rare with the driest month being July with only 19 mm of rain.
Other cities in Portugal
Check out the weather for other cities in Portugal.
For this page, we’ve looked at the typical weather in Isla Terceira, 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.