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Home > Weather and Earthquakes > One-week Forecasts

One-week Forecasts

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Prefecture

Issued at 17:00 JST, 18 December 2017

Date 19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
24
Sun
25
Mon
KUSHIRO

PARTLY CLOUDY
-9 /0
10/10/10/0
PARTLY CLOUDY
-10 /-2
10
PARTLY CLOUDY
-10 /1
10
PARTLY CLOUDY
-7 /2
10
PARTLY CLOUDY
-8 /3
20
MOSTLY CLOUDY
-7 /3
20
CLOUDY, OCCASIONAL SNOW FLURRIES
-8 /2
50
/ / A A A A C
ASAHIKAWA

SNOW THROUGHOUT THE DAY
-6 /-4
60/40/40/30
CLOUDY, FREQUENT SNOW FLURRIES
-8 /-4
70
CLOUDY, OCCASIONAL SNOW FLURRIES
-8 /-2
50
CLOUDY
-5 /0
30
CLOUDY
-5 /2
40
CLOUDY
-6 /0
40
CLOUDY, OCCASIONAL SNOW FLURRIES
-9 /-1
60
/ / C C C C C
SAPPORO

CLOUDY, FREQUENT SNOW FLURRIES
-5 /-1
40/30/30/30
CLOUDY, OCCASIONAL SNOW FLURRIES
-8 /-2
60
MOSTLY CLOUDY
-6 /1
30
MOSTLY CLOUDY
-3 /3
10
CLOUDY
-3 /3
40
CLOUDY, OCCASIONAL SNOW FLURRIES
-3 /2
50
CLOUDY, OCCASIONAL SNOW FLURRIES
-5 /1
60
/ / A B C C C
AOMORI

SNOW
-1 /1
60/80/70/40
CLOUDY, FREQUENT SNOW FLURRIES
-3 /0
70
CLOUDY, OCCASIONAL SNOW FLURRIES
-3 /3
50
CLOUDY
-1 /5
20
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
0 /6
50
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
0 /5
50
CLOUDY, FREQUENT SNOW FLURRIES
-1 /4
70
/ / C B C C C
AKITA

SNOW
-1 /3
70/90/80/50
CLOUDY, OCCASIONAL SNOW FLURRIES
-3 /2
50
CLOUDY, OCCASIONAL SNOW FLURRIES
-2 /5
50
CLOUDY
-1 /6
30
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
1 /8
60
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
2 /7
50
CLOUDY, FREQUENT SNOW FLURRIES OR SCATTERED SHOWERS
0 /5
80
/ / C C B C B
SENDAI

MOSTLY CLOUDY
1 /9
20/10/40/10
PARTLY CLOUDY
0 /5
20
PARTLY CLOUDY
-1 /7
10
MOSTLY CLOUDY
0 /8
10
PARTLY CLOUDY
1 /10
10
PARTLY CLOUDY
2 /11
30
MOSTLY CLOUDY
2 /8
20
/ / A A A A A
Date 19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
24
Sun
25
Mon
NIIGATA

SNOW OR RAIN
3 /7
80/90/90/80
CLOUDY, OCCASIONAL SNOW FLURRIES
0 /5
60
CLOUDY, RAIN OR SNOW LATER
1 /8
60
MOSTLY CLOUDY
2 /8
30
CLOUDY
2 /10
40
CLOUDY, OCCASIONAL SCATTERED SHOWERS
4 /9
50
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
3 /7
60
/ / C C C C B
KANAZAWA

RAIN OR SNOW
3 /7
70/80/90/50
MOSTLY CLOUDY
1 /8
40
CLOUDY, RAIN OR SNOW LATER
0 /9
60
MOSTLY CLOUDY
1 /10
20
MOSTLY CLOUDY
2 /11
30
CLOUDY, OCCASIONAL SCATTERED SHOWERS
4 /11
50
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
3 /9
60
/ / B B C C C
TOKYO

PARTLY CLOUDY
0 /13
0/0/0/10
PARTLY CLOUDY
2 /10
10
MOSTLY CLOUDY
2 /10
30
PARTLY CLOUDY
3 /11
20
PARTLY CLOUDY
2 /12
10
CLOUDY
4 /14
30
PARTLY CLOUDY
5 /13
20
/ / B A A B A
UTSUNOMIYA

CLEAR
-3 /11
0/0/0/10
PARTLY CLOUDY
-1 /8
10
MOSTLY CLOUDY
-1 /10
20
PARTLY CLOUDY
-1 /11
20
PARTLY CLOUDY
-2 /12
10
CLOUDY
-1 /13
30
PARTLY CLOUDY
1 /12
20
/ / A A A A A
NAGANO

CLOUDY, SNOW FLURRIES LATER
-4 /7
10/20/50/40
CLEAR, SNOW FLURRIES
-4 /5
50
MOSTLY CLOUDY
-4 /6
20
MOSTLY CLOUDY
-3 /7
20
PARTLY CLOUDY
-3 /9
10
CLOUDY
-1 /9
40
CLOUDY, SNOW FLURRIES OR OCCASIONAL SCATTERED SHOWERS
-1 /6
60
/ / A A A C C
NAGOYA

CLEAR, PARTLY CLOUDY LATER
0 /10
0/0/0/0
PARTLY CLOUDY
1 /11
10
MOSTLY CLOUDY
2 /11
10
PARTLY CLOUDY
1 /12
10
PARTLY CLOUDY
1 /12
10
CLOUDY
2 /12
40
PARTLY CLOUDY
3 /10
20
/ / A A A B A
Date 19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
24
Sun
25
Mon
OSAKA

MOSTLY CLOUDY
2 /10
10/20/20/10
PARTLY CLOUDY
3 /10
20
PARTLY CLOUDY
2 /10
20
PARTLY CLOUDY
2 /11
20
PARTLY CLOUDY
2 /12
20
CLOUDY
4 /13
40
MOSTLY CLOUDY
5 /11
30
/ / A A A B A
TAKAMATSU

MOSTLY CLOUDY
2 /10
10/30/20/10
PARTLY CLOUDY
0 /9
10
CLOUDY, PARTLY CLOUDY LATER
2 /10
40
PARTLY CLOUDY
2 /11
0
MOSTLY CLOUDY
2 /11
0
CLOUDY
5 /12
40
MOSTLY CLOUDY
4 /9
20
/ / B A A B A
MATSUE

CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
3 /7
40/70/30/20
MOSTLY CLOUDY
0 /7
30
CLOUDY
1 /9
40
MOSTLY CLOUDY
1 /11
20
PARTLY CLOUDY
2 /12
10
CLOUDY
4 /12
40
CLOUDY
2 /8
40
/ / B A A C C
HIROSHIMA

MOSTLY CLOUDY
2 /9
10/20/10/10
PARTLY CLOUDY
0 /9
20
PARTLY CLOUDY
1 /10
20
PARTLY CLOUDY
0 /11
10
PARTLY CLOUDY
2 /12
10
CLOUDY
4 /13
40
MOSTLY CLOUDY
3 /10
30
/ / A A A C A
KOCHI

PARTLY CLOUDY
0 /12
10/20/20/10
CLEAR
0 /11
0
CLOUDY, CLEAR LATER
1 /11
40
CLEAR
1 /13
0
MOSTLY CLOUDY
1 /13
10
CLOUDY
5 /14
40
PARTLY CLOUDY
3 /12
20
/ / B A A C A
Date 19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
24
Sun
25
Mon
FUKUOKA

CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
5 /10
60/50/20/10
MOSTLY CLOUDY
2 /9
30
CLOUDY
4 /10
40
PARTLY CLOUDY
3 /11
10
PARTLY CLOUDY
4 /13
10
CLOUDY
7 /13
40
MOSTLY CLOUDY
5 /11
30
/ / B A A C A
KAGOSHIMA

CLOUDY
4 /13
10/20/10/10
CLEAR, CLOUDY LATER
3 /12
30
CLOUDY, CLEAR LATER
4 /12
20
PARTLY CLOUDY
3 /13
10
PARTLY CLOUDY
3 /15
10
CLOUDY
7 /15
40
MOSTLY CLOUDY
5 /12
20
/ / A A A C A
AMAMI

CLOUDY
11 /17
20/30/10/20
CLOUDY
14 /17
40
CLOUDY
12 /16
30
MOSTLY CLOUDY
11 /17
20
MOSTLY CLOUDY
13 /20
20
CLOUDY
13 /21
30
CLOUDY
12 /18
30
/ / A A A B B
NAHA

CLOUDY, OCCASIONAL SCATTERED SHOWERS
16 /19
20/40/50/30
CLOUDY
16 /19
40
MOSTLY CLOUDY
14 /19
30
MOSTLY CLOUDY
14 /20
30
PARTLY CLOUDY
16 /22
20
MOSTLY CLOUDY
17 /23
30
MOSTLY CLOUDY
16 /21
30
/ / A A A A A
ISHIGAKI

CLOUDY, FREQUENT SCATTERED SHOWERS
17 /19
60/60/60/40
CLOUDY
16 /20
40
MOSTLY CLOUDY
16 /20
30
MOSTLY CLOUDY
16 /22
30
MOSTLY CLOUDY
19 /24
30
MOSTLY CLOUDY
19 /24
30
MOSTLY CLOUDY
17 /22
30
/ / A A A B B

Legend
Weather (/: to, |: occasionally or partly)
Low/High (°C)
Probability of precipitation (%) for six hours or for the day

One-week forecasts for individual prefectures are issued at 11:00 and 17:00 JST every day. The latest daily forecasts are displayed in the columns for the first and second days. The probability of precipitation for today and tomorrow is displayed with six hours as a unit (i.e., 00 – 06/06 – 12/12 – 18/18 – 24 JST).
Figures shown in parentheses in the low and high temperature rows indicate the ranges of error in degrees Celsius. The reliability for the day is represented as A, B or C in descending order of expected accuracy. The results of precipitation forecast accuracy verification for the period from 1 April 2002 to 31 March 2007 indicate an average accuracy of 86% for A, 72% for B and 56% for C.
Values in the normal precipitation column represent the range of normal cumulative precipitation amounts for the coming seven days, while the figures in the normal low/high temperature columns represent those for the fourth day of the period.