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Home > Weather and Earthquakes > One-week Forecasts

One-week Forecasts

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Prefecture

Issued at 05:00 JST, 17 December 2017

Date 17
Sun
18
Mon
19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
KUSHIRO

PARTLY CLOUDY
- /1
-/10/20/10
PARTLY CLOUDY
-13 /-1
0/0/0/0
CLEAR, CLOUDY LATER
-9 /1
30
PARTLY CLOUDY
-10 /-1
20
PARTLY CLOUDY
-11 /1
10
PARTLY CLOUDY
-9 /2
10
PARTLY CLOUDY
-10 /1
20
/ / B A A B A
ASAHIKAWA

CLOUDY, FREQUENT SNOW FLURRIES
- /-3
-/50/30/30
CLOUDY, SNOW LATER
-10 /-4
30/30/50/50
CLOUDY, FREQUENT SNOW FLURRIES
-8 /-3
70
CLOUDY, FREQUENT SNOW FLURRIES
-10 /-4
60
CLOUDY, OCCASIONAL SNOW FLURRIES
-9 /-2
50
CLOUDY, OCCASIONAL SNOW FLURRIES
-9 /-2
50
CLOUDY
-9 /-1
40
/ / A B C C C
SAPPORO

CLOUDY, FREQUENT SNOW FLURRIES
- /-1
-/40/30/40
CLOUDY, SNOW FLURRIES LATER
-7 /-1
30/30/50/30
CLOUDY, FREQUENT SNOW FLURRIES
-6 /0
70
CLOUDY, OCCASIONAL SNOW FLURRIES
-7 /-2
50
CLOUDY, OCCASIONAL SNOW FLURRIES
-7 /1
50
CLOUDY, OCCASIONAL SNOW FLURRIES
-5 /1
50
MOSTLY CLOUDY
-6 /1
30
/ / A C C C C
AOMORI

SNOW
- /0
-/80/50/50
SNOW
-3 /2
50/30/70/60
SNOW
-2 /2
100
CLOUDY, OCCASIONAL SNOW FLURRIES
-3 /1
50
CLOUDY
-4 /3
40
CLOUDY, OCCASIONAL SNOW FLURRIES
-3 /3
60
CLOUDY
-3 /3
40
/ / A C C C C
AKITA

SNOW
- /1
-/50/60/50
SNOW
-1 /4
50/40/80/70
SNOW OR RAIN
-1 /4
100
CLOUDY, OCCASIONAL SNOW FLURRIES
-1 /3
50
CLOUDY
-2 /4
40
CLOUDY, OCCASIONAL SNOW FLURRIES
-1 /4
70
CLOUDY
-1 /5
40
/ / A C C C C
SENDAI

CLEAR, CLOUDY LATER
- /4
-/0/0/0
CLEAR, CLOUDY LATER
0 /5
0/0/10/20
CLOUDY
2 /9
20
PARTLY CLOUDY
0 /6
10
MOSTLY CLOUDY
-1 /7
10
MOSTLY CLOUDY
0 /7
20
PARTLY CLOUDY
0 /8
10
/ / A A A A A
Date 17
Sun
18
Mon
19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
NIIGATA

HEAVY SNOWSTORMS
- /4
-/80/60/50
SNOW THROUGHOUT THE DAY
-1 /6
50/50/80/80
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
3 /9
80
CLOUDY, SNOW FLURRIES OR OCCASIONAL SCATTERED SHOWERS
1 /5
60
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
0 /8
50
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
2 /7
50
MOSTLY CLOUDY
1 /7
40
/ / A C C C C
KANAZAWA

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

PARTLY CLOUDY
- /10
-/10/10/0
CLEAR
1 /9
0/0/0/0
PARTLY CLOUDY
3 /13
10
MOSTLY CLOUDY
4 /11
20
CLOUDY
3 /10
30
PARTLY CLOUDY
3 /11
30
PARTLY CLOUDY
2 /11
10
/ / A A A A A
UTSUNOMIYA

PARTLY CLOUDY
- /9
-/10/0/0
CLEAR
-3 /8
0/0/0/0
PARTLY CLOUDY
-2 /12
10
MOSTLY CLOUDY
0 /10
20
MOSTLY CLOUDY
-1 /10
20
PARTLY CLOUDY
-1 /11
20
PARTLY CLOUDY
-2 /11
10
/ / A A A A A
NAGANO

SNOW, CLOUDY LATER
- /3
-/60/50/40
CLOUDY
-6 /5
10/10/20/30
MOSTLY CLOUDY
-2 /8
30
CLOUDY, OCCASIONAL SNOW FLURRIES
-2 /5
50
MOSTLY CLOUDY
-4 /7
20
CLOUDY, SNOW FLURRIES OR OCCASIONAL SCATTERED SHOWERS
-2 /5
50
PARTLY CLOUDY
-5 /7
30
/ / B C B C C
NAGOYA

CLOUDY, CLEAR LATER
- /8
-/20/10/10
CLEAR
1 /9
10/0/0/0
PARTLY CLOUDY
1 /11
10
PARTLY CLOUDY
3 /11
10
MOSTLY CLOUDY
1 /10
20
PARTLY CLOUDY
1 /11
20
PARTLY CLOUDY
1 /11
20
/ / A A A A A
Date 17
Sun
18
Mon
19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
OSAKA

CLEAR, CLOUDY LATER
- /8
-/0/10/10
CLEAR
2 /9
0/0/0/0
MOSTLY CLOUDY
3 /12
30
MOSTLY CLOUDY
4 /10
30
MOSTLY CLOUDY
2 /10
30
MOSTLY CLOUDY
3 /10
30
PARTLY CLOUDY
2 /11
20
/ / A A A A A
TAKAMATSU

CLEAR, PARTLY CLOUDY LATER
- /8
-/10/10/10
PARTLY CLOUDY
1 /8
0/10/0/10
MOSTLY CLOUDY
2 /10
30
MOSTLY CLOUDY
2 /10
10
CLOUDY
2 /10
40
PARTLY CLOUDY
2 /10
10
PARTLY CLOUDY
1 /11
10
/ / A A B A A
MATSUE

SNOW THROUGHOUT THE DAY
- /5
-/60/50/40
CLOUDY
2 /7
30/30/20/20
CLOUDY
2 /9
40
CLOUDY
2 /8
30
CLOUDY
2 /8
40
CLOUDY, OCCASIONAL SCATTERED SHOWERS OR SNOW FLURRIES
2 /9
50
PARTLY CLOUDY
1 /11
20
/ / C B C C B
HIROSHIMA

CLOUDY, PARTLY CLOUDY LATER
- /6
-/20/10/10
MOSTLY CLOUDY
1 /8
10/10/10/0
PARTLY CLOUDY
2 /10
20
MOSTLY CLOUDY
2 /9
20
MOSTLY CLOUDY
1 /9
20
MOSTLY CLOUDY
1 /10
20
PARTLY CLOUDY
1 /11
20
/ / A A A A A
KOCHI

PARTLY CLOUDY
- /8
-/20/10/10
CLEAR
0 /10
10/0/0/0
PARTLY CLOUDY
1 /12
30
MOSTLY CLOUDY
2 /11
20
CLOUDY
1 /11
40
PARTLY CLOUDY
1 /12
10
PARTLY CLOUDY
0 /13
10
/ / A A B A A
Date 17
Sun
18
Mon
19
Tue
20
Wed
21
Thu
22
Fri
23
Sat
FUKUOKA

CLOUDY
- /5
-/20/0/10
CLOUDY
2 /8
20/20/10/0
CLOUDY
4 /11
30
MOSTLY CLOUDY
4 /9
20
MOSTLY CLOUDY
3 /10
30
PARTLY CLOUDY
4 /10
10
PARTLY CLOUDY
3 /12
10
/ / C A B A A
KAGOSHIMA

CLOUDY, PARTLY CLOUDY LATER
- /9
-/10/10/0
CLEAR
2 /11
0/0/0/0
MOSTLY CLOUDY
3 /13
20
MOSTLY CLOUDY
5 /11
20
CLOUDY
4 /11
30
PARTLY CLOUDY
3 /12
10
PARTLY CLOUDY
3 /14
10
/ / A A A A A
AMAMI

CLOUDY
- /15
-/10/10/10
CLOUDY
12 /16
10/10/10/10
CLOUDY
13 /18
40
CLOUDY
12 /17
40
CLOUDY
11 /17
30
MOSTLY CLOUDY
11 /17
20
MOSTLY CLOUDY
12 /19
20
/ / C C A A A
NAHA

CLOUDY
- /17
-/10/10/20
CLOUDY
15 /19
20/20/20/20
CLOUDY, OCCASIONAL SCATTERED SHOWERS
16 /19
70
CLOUDY
15 /19
40
MOSTLY CLOUDY
14 /18
30
MOSTLY CLOUDY
14 /19
30
MOSTLY CLOUDY
15 /21
30
/ / B C A A A
ISHIGAKI

CLOUDY
- /16
-/30/20/20
CLOUDY
15 /19
20/30/40/30
CLOUDY, OCCASIONAL SCATTERED SHOWERS
17 /21
70
CLOUDY
16 /20
40
MOSTLY CLOUDY
16 /20
30
MOSTLY CLOUDY
15 /20
30
CLOUDY
18 /22
40
/ / A B 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.