Annual mean 15°C · wettest around November · prevailing wind NW
Warmest
29.2 °C
Coldest
8.0 °C
Wettest
41%
Windiest
3.9 m/s
Prevailing
NW
3.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Grottammare over the whole year is 15°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 5°C. Grottammare has no sharply defined rainy season: the chance of rain on a given day runs from 18% in August, the driest month, to 34% in November, the wettest. Winds in Grottammare are highest in March, averaging 3.2 m/s (12 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the NW. The clearest skies in Grottammare come in July, when the sky is typically 22% covered; November is the cloudiest month, at 54%.
Month by month Grottammare climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
8°C
5°C
5°C
23%
54%
2.9 m/s
3
0
43
February
10°C
6°C
7°C
28%
50%
3.0 m/s
4
0
55
March
12°C
7°C
8°C
29%
48%
3.2 m/s
15
0
64
April
16°C
9°C
13°C
30%
45%
3.0 m/s
42
1
76
May
19°C
14°C
17°C
30%
45%
3.0 m/s
68
9
71
June
25°C
19°C
25°C
27%
28%
2.9 m/s
61
53
31
July
28°C
21°C
27°C
20%
22%
3.0 m/s
41
66
17
August
28°C
21°C
28°C
18%
24%
3.0 m/s
36
65
16
September
23°C
17°C
22°C
29%
36%
2.8 m/s
69
39
45
October
19°C
13°C
17°C
26%
42%
2.7 m/s
70
6
74
November
13°C
9°C
10°C
34%
54%
2.8 m/s
27
0
69
December
9°C
6°C
6°C
32%
53%
2.5 m/s
4
0
51
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Grottammare weather by season
Year round, Grottammare has days of about 8°C at their warmest in January, its coolest month, and 28°C in August, its warmest; the coolest hours of the day run from 5°C to 21°C through the year, and the average temperature over the year is 15°C around the clock. Rain is most likely around November and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Grottammare weather in winterDecember to February
High 9°CLow 5°CRain 28%
Winter in Grottammare has typical daily highs of about 9°C and lows of about 5°C, with a 28% chance of rain on a given day.
Grottammare weather in springMarch to May
High 16°CLow 10°CRain 30%
Spring in Grottammare has typical daily highs of about 16°C and lows of about 10°C, with a 30% chance of rain on a given day.
Grottammare weather in summerJune to August
High 27°CLow 21°CRain 21%
Summer in Grottammare has typical daily highs of about 27°C and lows of about 21°C, with a 21% chance of rain on a given day.
Grottammare weather in autumnSeptember to November
High 18°CLow 13°CRain 30%
Autumn in Grottammare has typical daily highs of about 18°C and lows of about 13°C, with a 30% chance of rain on a given day.
When is the rainy season in Grottammare?
Grottammare has no sharply defined rainy season: the chance of rain on a given day runs from 18% in August, the driest month, to 34% in November, the wettest.
What time of year is Grottammare windiest?
Winds in Grottammare are highest in March, averaging 3.2 m/s (12 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the NW.
What is the average temperature in Grottammare year round?
The average temperature in Grottammare over the whole year is 15°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 5°C.