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Monthly weather forecast in Keflavík
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
18
+13
+11
18 August, sun
+13
+11
Feels like
+9
748 mmHg
76%
6.5
m/s
NE
+12
18 August, Sunday. day, 13°; night, 11°; partly cloudy
19
+12
+10
19 August, mon
+12
+10
Feels like
+7
750 mmHg
72%
7.1
m/s
N
+12
19 August, Monday. day, 12°; night, 10°; rain
20
+12
+10
20 August, tue
+12
+10
Feels like
+7
750 mmHg
76%
7.5
m/s
NE
+12
20 August, Tuesday. day, 12°; night, 10°; clear
21
+12
+10
21 August, wed
+12
+10
Feels like
+7
750 mmHg
81%
8.3
m/s
E
+12
21 August, Wednesday. day, 12°; night, 10°; rain
22
+12
+11
22 August, thu
+12
+11
Feels like
+8
748 mmHg
79%
7.9
m/s
E
+12
22 August, Thursday. day, 12°; night, 11°; rain
23
August
+10
+8
23 August, fri
+10
+8
Feels like
−5
740 mmHg
74%
17.9
m/s
NW
+10
Climate normal
+12
+11
23 August, Friday. day, 10°; night, 8°; overcast
24
+10
+7
24 August, sat
+10
+7
Feels like
0
743 mmHg
71%
11.3
m/s
N
+10
Climate normal
+12
+10
24 August, Saturday. day, 10°; night, 7°; overcast
25
+10
+6
25 August, sun
+10
+6
Feels like
+1
747 mmHg
72%
10.2
m/s
N
+10
Climate normal
+11
+10
25 August, Sunday. day, 10°; night, 6°; partly cloudy
26
+12
+9
26 August, mon
+12
+9
Feels like
+4
747 mmHg
76%
5.8
m/s
NE
+10
Climate normal
+11
+10
26 August, Monday. day, 12°; night, 9°; partly cloudy
27
+12
+9
27 August, tue
+12
+9
Feels like
+6
747 mmHg
78%
5.9
m/s
N
+10
Climate normal
+11
+9
27 August, Tuesday. day, 12°; night, 9°; light rain
28
+12
+9
28 August, wed
+12
+9
Feels like
+7
751 mmHg
81%
5
m/s
NW
+10
Climate normal
+10
+9
28 August, Wednesday. day, 12°; night, 9°; partly cloudy
29
+12
+9
29 August, thu
+12
+9
Feels like
+4
751 mmHg
80%
9
m/s
SE
+11
Climate normal
+11
+10
29 August, Thursday. day, 12°; night, 9°; light rain
30
+12
+8
30 August, fri
+12
+8
Feels like
+5
751 mmHg
80%
7.5
m/s
W
+11
Climate normal
+11
+10
30 August, Friday. day, 12°; night, 8°; light rain
31
+12
+9
31 August, sat
+12
+9
Feels like
+4
753 mmHg
81%
8.9
m/s
SW
+11
Climate normal
+11
+10
31 August, Saturday. day, 12°; night, 9°; light rain
1 September
+13
+10
1 September, sun
+13
+10
Feels like
+7
752 mmHg
82%
6.8
m/s
SE
+11
Climate normal
+11
+10
1 September, Sunday. day, 13°; night, 10°; light rain
2
+13
+9
2 September, mon
+13
+9
Feels like
+4
755 mmHg
77%
11.3
m/s
SE
Climate normal
+11
+10
2 September, Monday. day, 13°; night, 9°; light rain
3
+12
+10
3 September, tue
+12
+10
Feels like
+5
754 mmHg
76%
7.2
m/s
W
Climate normal
+12
+10
3 September, Tuesday. day, 12°; night, 10°; light rain
4
+11
+10
4 September, wed
+11
+10
Feels like
+6
754 mmHg
76%
6.7
m/s
W
Climate normal
+11
+10
4 September, Wednesday. day, 11°; night, 10°; light rain
5
+11
+11
5 September, thu
+11
+11
Feels like
+2
749 mmHg
82%
12.3
m/s
NE
Climate normal
+11
+10
5 September, Thursday. day, 11°; night, 11°; rain
6
+11
+9
6 September, fri
+11
+9
Feels like
+4
745 mmHg
81%
9
m/s
NE
Climate normal
+11
+9
6 September, Friday. day, 11°; night, 9°; partly cloudy
7
+9
+7
7 September, sat
+9
+7
Feels like
0
753 mmHg
76%
11.7
m/s
N
Climate normal
+10
+9
7 September, Saturday. day, 9°; night, 7°; clear
8
+7
+6
8 September, sun
+7
+6
Feels like
−3
761 mmHg
70%
10.2
m/s
N
Climate normal
+10
+9
8 September, Sunday. day, 7°; night, 6°; clear
9
+9
+9
9 September, mon
+9
+9
Feels like
+3
764 mmHg
69%
5
m/s
W
Climate normal
+11
+9
9 September, Monday. day, 9°; night, 9°; partly cloudy
10
+10
+10
10 September, tue
+10
+10
Feels like
+6
760 mmHg
77%
2.5
m/s
NW
Climate normal
+10
+9
10 September, Tuesday. day, 10°; night, 10°; mostly clear
11
+10
+10
11 September, wed
+10
+10
Feels like
+6
764 mmHg
78%
4.2
m/s
N
Climate normal
+10
+9
11 September, Wednesday. day, 10°; night, 10°; light rain
12
+9
+8
12 September, thu
+9
+8
Feels like
+5
768 mmHg
73%
4.5
m/s
N
Climate normal
+10
+9
12 September, Thursday. day, 9°; night, 8°; mostly clear
13
+10
+9
13 September, fri
+10
+9
Feels like
+2
763 mmHg
87%
8.5
m/s
W
Climate normal
+11
+9
13 September, Friday. day, 10°; night, 9°; rain
14
+9
+9
14 September, sat
+9
+9
Feels like
+3
756 mmHg
85%
5.7
m/s
E
Climate normal
+10
+9
14 September, Saturday. day, 9°; night, 9°; light rain
15
+10
+8
15 September, sun
+10
+8
Feels like
+5
751 mmHg
84%
4.9
m/s
NW
Climate normal
+10
+9
15 September, Sunday. day, 10°; night, 8°; light rain
16
+8
+6
16 September, mon
+8
+6
Feels like
0
758 mmHg
75%
8.9
m/s
N
Climate normal
+10
+9
16 September, Monday. day, 8°; night, 6°; partly cloudy
17
+9
+9
17 September, tue
+9
+9
Feels like
−2
754 mmHg
77%
12.4
m/s
E
Climate normal
+9
+8
17 September, Tuesday. day, 9°; night, 9°; light rain
18
+9
+8
18 September, wed
+9
+8
Feels like
+2
747 mmHg
84%
9.4
m/s
E
Climate normal
+9
+8
18 September, Wednesday. day, 9°; night, 8°; light rain
19
+8
+8
19 September, thu
+8
+8
Feels like
0
748 mmHg
80%
7.6
m/s
N
Climate normal
+9
+8
19 September, Thursday. day, 8°; night, 8°; mostly clear
20
+9
+9
20 September, fri
+9
+9
Feels like
+6
747 mmHg
83%
3.5
m/s
NE
Climate normal
+9
+7
20 September, Friday. day, 9°; night, 9°; mostly clear
21
+10
+10
21 September, sat
+10
+10
Feels like
+6
750 mmHg
79%
3.3
m/s
NW
Climate normal
+9
+8
21 September, Saturday. day, 10°; night, 10°; clear
Average for 30 days
7
sunny days
15
days with precipitation
8
cloudy days
7 sunny days; 15 days with precipitation; 8 cloudy days;
78
%
air humidity
7.9
m/s
Wind
N
12
mm of precipitation
(1% of annual average)
+10
°C
Water temperature
air humidity 78%; 12 millimeters of precipitation (1% of annual average); Wind northerly 7.9 Meters per second; Water temperature +10°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NW
N
N
NE
N
NW
SE
W
SW
SE
SE
W
W
NE
NE
N
N
W
NW
N
N
W
E
NW
N
E
E
N
NE
NW
23
Average data for 10 years
24
25
26
27
28
29
30
31
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Daytime temperature
Night-time temperature
