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Weather diary for students
Units of measurement
Cloudiness:
Percents
1/10
oktas
Precipitation:
millimeters (mm) / centimetres (cm)
inches
Temperature:
degrees Celsius (°C)
degrees Fahrenheit (°F)
Pressure:
millimeters of mercury (mmHg)
inches of mercury (inHg)
millibars (mbar)
hectopascals (hPa)
Wind:
meters per second (m/s)
kilometers per hour (km/h)
miles per hour (mph)
knots
Beaufort number (Bft)
For the "Weather archive" pages only
Horizontal visibility (VV):
kilometres
miles
Height of the base of the lowest clouds (H):
metres
feet
Snow depth (sss):
centimetres
inches
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Brazil
Maranhao
Sao Luis (airport)
Weather archive in Jam (airport), METAR
See on map
Weather forecast
airport (ICAO)
, observations since September 26, 2012
View weather archive
Download weather archive
Weather statistics
Period end date:
Selection period:
1 day
2 days
3 days
Select
To receive explanations, hover over the appropriate heading
Date
/ Local time
T
Po
P
U
DD
Ff
ff10
WW
W'W'
c
VV
Td
2026
May 4,
Monday
03:30
24
75
702.6
27.66
936.72
936.72
758.2
29.85
1010.85
1010.85
36
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
8
46
02:30
25
77
703.6
27.7
938.06
938.06
759.0
29.88
1011.92
1011.92
34
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
8
46
01:30
25
77
702.8
27.67
936.99
936.99
758.2
29.85
1010.85
1010.85
34
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
8
46
00:30
26
79
34
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
9
48
May 3,
Sunday
23:30
26
79
37
Calm, no wind
Calm
10
50
22:30
27
81
34
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
10
50
21:30
28
82
704.1
27.72
938.72
938.72
759.0
29.88
1011.92
1011.92
32
Variable wind direction
Light air
(1 m/s)
(4 km/h)
(2 mph)
(2 knots)
(1 Bft)
10
50
1.
Date range:
—
2.
Select within the date range:
all days
only month
May
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
only date
4 May
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3.
Format:
XLS (Excel)
CSV (plain text)
4.
Encoding:
ANSI
UTF-8
Unicode
Select to file GZ (archive)
1.
Date range:
—
2.
Select within the date range:
all days
only month
May
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
only date
4 May
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
only at the time of observation
-Period---
01:00-02:00 (20:30-21:30 UTC)
04:00-05:00 (23:30-00:30 UTC)
07:00-08:00 (02:30-03:30 UTC)
10:00-11:00 (05:30-06:30 UTC)
13:00-14:00 (08:30-09:30 UTC)
16:00-17:00 (11:30-12:30 UTC)
19:00-20:00 (14:30-15:30 UTC)
22:00-23:00 (17:30-18:30 UTC)
3.
Selection parameters:
T
P0
P
U
DD
FF
FF10
VV
Calculate
0