Annual mean 22°C · wettest around January · prevailing wind NE
Warmest
31.0 °C
Coldest
25.3 °C
Wettest
93%
Windiest
2.6 m/s
Prevailing
NE
2.0 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 Formosa over the whole year is 22°C. September is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 16°C. The rainy (wet) season in Formosa runs from October to April, peaking in January with a 61% chance of rain on a given day. The dry season is May to September; July is the driest month, at 0%. Winds in Formosa are highest in August, averaging 1.8 m/s (6 km/h), and lightest in March, at 1.3 m/s (5 km/h). The prevailing wind is from the NE. The clearest skies in Formosa come in July, when the sky is typically 25% covered; November is the cloudiest month, at 75%.
Month by month Formosa 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
27°C
20°C
28°C
61%
66%
1.4 m/s
41
65
9
February
27°C
20°C
28°C
60%
70%
1.4 m/s
41
65
9
March
27°C
20°C
29°C
50%
64%
1.3 m/s
37
69
6
April
27°C
19°C
28°C
55%
60%
1.4 m/s
46
69
8
May
27°C
17°C
27°C
10%
42%
1.4 m/s
63
65
17
June
26°C
16°C
25°C
9%
34%
1.6 m/s
76
51
30
July
26°C
16°C
24°C
0%
25%
1.7 m/s
80
44
38
August
27°C
18°C
26°C
13%
32%
1.8 m/s
72
59
24
September
30°C
20°C
29°C
20%
37%
1.8 m/s
40
67
9
October
29°C
21°C
29°C
50%
60%
1.7 m/s
31
67
6
November
27°C
20°C
28°C
54%
75%
1.5 m/s
43
63
11
December
26°C
20°C
28°C
59%
74%
1.5 m/s
46
63
10
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 Formosa weather by season
Year round, Formosa has days of about 26°C at their warmest in June, its coolest month, and 30°C in September, its warmest; the coolest hours of the day run from 16°C to 21°C through the year, and the average temperature over the year is 22°C around the clock. Rain is most likely around January and least likely around July. 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.
Formosa weather in winterJune to August
High 26°CLow 17°CRain 7%
Winter in Formosa has typical daily highs of about 26°C and lows of about 17°C, with a 7% chance of rain on a given day.
Formosa weather in springSeptember to November
High 29°CLow 20°CRain 41%
Spring in Formosa has typical daily highs of about 29°C and lows of about 20°C, with a 41% chance of rain on a given day.
Formosa weather in summerDecember to February
High 26°CLow 20°CRain 60%
Summer in Formosa has typical daily highs of about 26°C and lows of about 20°C, with a 60% chance of rain on a given day.
Formosa weather in autumnMarch to May
High 27°CLow 19°CRain 38%
Autumn in Formosa has typical daily highs of about 27°C and lows of about 19°C, with a 38% chance of rain on a given day.
When is the rainy season in Formosa?
The rainy (wet) season in Formosa runs from October to April, peaking in January with a 61% chance of rain on a given day. The dry season is May to September; July is the driest month, at 0%.
What time of year is Formosa windiest?
Winds in Formosa are highest in August, averaging 1.8 m/s (6 km/h), and lightest in March, at 1.3 m/s (5 km/h). The prevailing wind is from the NE.
What is the average temperature in Formosa year round?
The average temperature in Formosa over the whole year is 22°C. September is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 16°C.