Sat
Apr 20
Stable
~16
l/m2
98%
Sun
Apr 21
Extremely stable
~16
l/m2
98%
Mon
Apr 22
Extremely stable
Thu
Apr 25
Very stable
~11
l/m2
76%
20 Apr will be cool and the weather will be stable, thunderstorms not likely.
There is a 98% probability of heavy rainfall.
The sky will be overcast:
97% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
89% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
100% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 7 degrees Celsius, while the the lowest temperature will drop to 4 degrees Celsius. The wind will be a fresh breeze, fog will form, and the mean air pressure will be 1009 mb. Relative humidity will be very high.
Saturday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
09:00
1.8 69%
5 °C
1 °C
17 km/h 
38 km/h
1012 mb
99.6%
1,653 m
270 m
Apr, 20 09:00 @ Stable
12:00
2.1 70%
5 °C
1 °C
26 km/h 
48 km/h
1011 mb
99.4%
1,661 m
383 m
Apr, 20 12:00 @ Stable
15:00
6 °C
1 °C
29 km/h
59 km/h
1010 mb
98.9%
1,713 m
534 m
Apr, 20 15:00 @ Stable
18:00
1.7 68%
6 °C
1 °C
35 km/h
69 km/h
1007 mb
98.5%
1,972 m
647 m
Apr, 20 18:00 @ Stable
21:00
10 98%
6 °C
1 °C
34 km/h
63 km/h
1007 mb
98.6%
2,027 m
741 m
Apr, 20 21:00 @ Stable
21 Apr will be cool and the weather will be very stable.
There is a 98% probability of heavy rainfall.
The sky will be cloudy:
29% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
14% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
32% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
3% convective clouds (Cumulonimbus)
The highest temperature will reach 7 degrees Celsius, while the the lowest temperature will drop to 1 degrees Celsius. The wind will be a fresh breeze, fog will form, and the mean air pressure will be 1019 mb. Relative humidity will be high.
Sunday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
12 98%
6 °C
1 °C
36 km/h 
59 km/h
1006 mb
98.8%
1,527 m
687 m
Apr, 21 00:00 @ Stable
03:00
1.6 61%
6%
3 °C
-3 °C
24 km/h 
44 km/h
1010 mb
94.3%
619 m
704 m
Apr, 21 03:00 @ Extremely stable
06:00
1.7 49%
8%
1 °C
-4 °C
19 km/h
41 km/h
1015 mb
80.4%
523 m
435 m
Apr, 21 06:00 @ Extremely stable
09:00
3 °C
-2 °C
25 km/h
41 km/h
1019 mb
73.8%
561 m
1,012 m
Apr, 21 09:00 @ Extremely stable
12:00
5 °C
-1 °C
30 km/h
45 km/h
1022 mb
60.8%
703 m
1,028 m
Apr, 21 12:00 @ Extremely stable
15:00
6 °C
2 °C
26 km/h
39 km/h
1025 mb
52.0%
846 m
940 m
Apr, 21 15:00 @ Extremely stable
18:00
6 °C
2 °C
20 km/h
27 km/h
1027 mb
61.4%
806 m
785 m
Apr, 21 18:00 @ Extremely stable
21:00
3 °C
1 °C
6 km/h
7 km/h
1030 mb
81.1%
1,146 m
19 m
Apr, 21 21:00 @ Extremely stable
22 Apr will be cool and the weather will be very stable.
The sky will be slightly cloudy:
15% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
6% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
1% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 10 degrees Celsius, while the the lowest temperature will drop to 1 degrees Celsius. The wind will be a light breeze, and the mean air pressure will be 1033 mb. Relative humidity will be high.
Monday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
2 °C
1 °C
5 km/h 
5 km/h
1032 mb
85.6%
1,711 m
14 m
Apr, 22 00:00 @ Extremely stable
03:00
1 °C
1 °C
4 km/h 
5 km/h
1033 mb
81.5%
2,123 m
13 m
Apr, 22 03:00 @ Extremely stable
06:00
1 °C
-1 °C
6 km/h
8 km/h
1033 mb
74.4%
2,201 m
14 m
Apr, 22 06:00 @ Extremely stable
09:00
5 °C
3 °C
7 km/h
11 km/h
1034 mb
54.5%
2,277 m
147 m
Apr, 22 09:00 @ Extremely stable
12:00
8 °C
8 °C
3 km/h
6 km/h
1034 mb
42.2%
2,325 m
442 m
Apr, 22 12:00 @ Extremely stable
15:00
10 °C
10 °C
3 km/h
6 km/h
1034 mb
38.7%
2,302 m
624 m
Apr, 22 15:00 @ Extremely stable
18:00
10 °C
9 °C
7 km/h
7 km/h
1033 mb
40.3%
2,394 m
568 m
Apr, 22 18:00 @ Extremely stable
21:00
7 °C
7 °C
3 km/h
6 km/h
1034 mb
54.7%
2,419 m
15 m
Apr, 22 21:00 @ Very stable
23 Apr will be with moderate temperatures and the weather will be very stable.
The sky will be cloudy:
4% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
51% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
9% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 11 degrees Celsius, while the the lowest temperature will drop to 3 degrees Celsius. The wind will be a gentle breeze, and the mean air pressure will be 1030 mb. Relative humidity will be high.
Tuesday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
5 °C
4 °C
7 km/h
8 km/h
1034 mb
54.6%
2,367 m
11 m
Apr, 23 00:00 @ Stable
03:00
4 °C
3 °C
5 km/h
7 km/h
1033 mb
58.6%
2,378 m
11 m
Apr, 23 03:00 @ Stable
06:00
4 °C
3 °C
4 km/h
4 km/h
1032 mb
68.2%
2,370 m
10 m
Apr, 23 06:00 @ Stable
09:00
7 °C
6 °C
5 km/h
6 km/h
1031 mb
63.0%
2,404 m
142 m
Apr, 23 09:00 @ Stable
12:00
9 °C
10 °C
2 km/h
5 km/h
1030 mb
62.6%
2,433 m
541 m
Apr, 23 12:00 @ Stable
15:00
11 °C
10 °C
9 km/h
12 km/h
1029 mb
61.5%
2,401 m
833 m
Apr, 23 15:00 @ Stable
18:00
10 °C
9 °C
11 km/h
18 km/h
1027 mb
64.9%
2,374 m
708 m
Apr, 23 18:00 @ Stable
21:00
8 °C
8 °C
5 km/h
6 km/h
1027 mb
80.1%
2,343 m
65 m
Apr, 23 21:00 @ Stable
24 Apr will be cool and the weather will be very stable.
The sky will be cloudy:
4% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
53% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
27% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 8 degrees Celsius, while the the lowest temperature will drop to 4 degrees Celsius. The wind will be a moderate breeze, fog will form, and the mean air pressure will be 1022 mb. Relative humidity will be very high.
Wednesday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
6 °C
6 °C
4 km/h
5 km/h
1026 mb
90.2%
2,255 m
54 m
Apr, 24 00:00 @ Stable
03:00
5 °C
5 °C
5 km/h 
8 km/h
1026 mb
91.8%
2,090 m
147 m
Apr, 24 03:00 @ Stable
06:00
5 °C
4 °C
6 km/h
7 km/h
1025 mb
85.9%
1,906 m
49 m
Apr, 24 06:00 @ Stable
09:00
6 °C
5 °C
6 km/h
12 km/h
1023 mb
64.9%
1,665 m
351 m
Apr, 24 09:00 @ Stable
12:00
8 °C
7 °C
7 km/h
17 km/h
1022 mb
56.7%
1,557 m
641 m
Apr, 24 12:00 @ Very stable
15:00
8 °C
5 °C
15 km/h
26 km/h
1021 mb
62.6%
1,149 m
774 m
Apr, 24 15:00 @ Extremely stable
18:00
7 °C
3 °C
24 km/h
35 km/h
1020 mb
69.3%
1,147 m
754 m
Apr, 24 18:00 @ Extremely stable
21:00
6 °C
3 °C
14 km/h
33 km/h
1019 mb
84.3%
1,037 m
554 m
Apr, 24 21:00 @ Very stable
25 Apr will be cool and the weather will be very stable.
There is a 76% probability of moderate rainfall and showers.
The sky will be cloudy:
49% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
67% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
7% convective clouds (Cumulonimbus)
The highest temperature will reach 6 degrees Celsius, while the the lowest temperature will drop to 1 degrees Celsius. The wind will be a moderate breeze, fog will form, and the mean air pressure will be 1016 mb. Relative humidity will be very high.
Thursday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
5 °C
2 °C
15 km/h
40 km/h
1018 mb
93.0%
1,068 m
626 m
Apr, 25 00:00 @ Very stable
03:00
5 °C
3 °C
11 km/h
42 km/h
1016 mb
83.9%
1,038 m
661 m
Apr, 25 03:00 @ Stable
06:00
2.4 66%
3%
4 °C
2 °C
10 km/h
36 km/h
1015 mb
93.9%
890 m
892 m
Apr, 25 06:00 @ Stable
09:00
3.3 76%
3%
2 °C
-3 °C
14 km/h
15 km/h
1016 mb
95.3%
415 m
269 m
Apr, 25 09:00 @ Very stable
12:00
3.7 74%
5%
3 °C
-1 °C
21 km/h
23 km/h
1016 mb
83.9%
517 m
752 m
Apr, 25 12:00 @ Extremely stable
15:00
0.5 24%
22%
4 °C
-1 °C
23 km/h
24 km/h
1016 mb
54.2%
557 m
1,404 m
Apr, 25 15:00 @ Extremely stable
18:00
0.5 16%
40%
4 °C
0 °C
15 km/h
16 km/h
1015 mb
51.4%
564 m
1,214 m
Apr, 25 18:00 @ Very stable
21:00
2 °C
0 °C
7 km/h
7 km/h
1015 mb
59.6%
503 m
88 m
Apr, 25 21:00 @ Very stable
26 Apr will be cool and the weather will be very stable.
The sky will be partly cloudy:
26% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
17% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 8 degrees Celsius, while the the lowest temperature will drop to -1 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 1010 mb. Relative humidity will be high.
Friday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
1 °C
-1 °C
6 km/h
12 km/h
1013 mb
64.8%
472 m
85 m
Apr, 26 00:00 @ Very stable
03:00
0 °C
-3 °C
10 km/h
12 km/h
1012 mb
65.6%
417 m
67 m
Apr, 26 03:00 @ Very stable
06:00
0 °C
-4 °C
11 km/h
13 km/h
1011 mb
66.9%
294 m
83 m
Apr, 26 06:00 @ Very stable
09:00
3 °C
-1 °C
14 km/h
18 km/h
1009 mb
56.3%
514 m
388 m
Apr, 26 09:00 @ Stable
12:00
6 °C
2 °C
22 km/h
22 km/h
1009 mb
57.5%
728 m
937 m
Apr, 26 12:00 @ Very stable
15:00
7 °C
4 °C
23 km/h
24 km/h
1008 mb
53.6%
910 m
1,197 m
Apr, 26 15:00 @ Stable
18:00
7 °C
4 °C
18 km/h
19 km/h
1009 mb
59.2%
908 m
991 m
Apr, 26 18:00 @ Stable
21:00
4 °C
1 °C
15 km/h
19 km/h
1010 mb
72.9%
878 m
208 m
Apr, 26 21:00 @ Stable
27 Apr will be cool and the weather will be .
The sky will be overcast:
29% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
72% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
The highest temperature will reach 7 degrees Celsius, while the the lowest temperature will drop to 0 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 6085 mb. Relative humidity will be .
Saturday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
00:00
2 °C
-2 °C
14 km/h
20 km/h
1012 mb
83.4%
737 m
157 m
Apr, 27 00:00 @ Very stable
03:00
1 °C
-4 °C
12 km/h
14 km/h
1013 mb
88.1%
678 m
99 m
Apr, 27 03:00 @ Very stable
06:00
0 °C
-4 °C
13 km/h
18 km/h
1014 mb
84.3%
444 m
156 m
Apr, 27 06:00 @ Very stable
09:00
3 °C
-2 °C
19 km/h
25 km/h
1016 mb
57.8%
508 m
714 m
Apr, 27 09:00 @ Extremely stable
12:00
5 °C
0 °C
25 km/h
26 km/h
1016 mb
43.2%
647 m
1,180 m
Apr, 27 12:00 @ Extremely stable
15:00
6 °C
2 °C
24 km/h
30 km/h
1017 mb
41.3%
760 m
1,530 m
Apr, 27 15:00 @ Very stable
Norðurvellir
13:41 
