How many sunny days does Niigata have per year?

Niigata averages approximately 159 sunny days per year, based on historical climate data.

What is the air quality in Niigata?

Niigata has an annual PM2.5 concentration of 11.9 µg/m³, classified as "Fair" by WHO standards. Slightly above WHO targets. Sensitive individuals may notice effects.

Niigata

Niigata · Japan

A city in Japan.

Medium city

438K

153 km²

13:06 UTC+9

JPY

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Niigata, Japan is a 438K-resident city with 159 sunny days and 0 frost days annually and an annual PM2.5 of 11.9 µg/m³. A city in Japan.

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Climate

Feels-like °C

-5

-3

-2

Dinner outside

Climate Lab·Niigata

Monthly climate metrics across temperature, precipitation, wind, and UV.

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Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	9	11	13	16	20	25	29	31	29	22	18	11	19
Daily mean°C	5	6	9	12	17	22	26	28	25	18	14	7	16
Daily low°C	2	2	5	8	13	19	24	26	21	14	9	3	12
Thermal comfort
High feelsDaily high feels-like°C	7	10	15	21	26	30	35	37	34	24	19	9	22
Mean feelsDaily mean feels-like°C	-5	-3	5	11	18	25	30	32	26	16	7	-2	13
Low feelsDaily low feels-like°C	-14	-13	-6	1	9	18	24	26	17	7	-2	-12	4
Humidity
HumidityRelative humidity%	71	68	68	70	77	79	83	79	75	71	70	76	74
Dewpoint°C	-0.1	-0.7	2.4	7.5	13.1	18.5	23.3	24.6	20.3	13.1	7.8	2.9	11.0
Precipitation
Rainfallmm	159	123	104	99	108	110	178	144	134	160	228	210	1755
Rain days≥1mm	24	24	18	11	11	13	15	16	14	17	20	29	212
Snowfallmm	3	2	0	0	0	0	0	0	0	0	0	3	8
Snow days≥1mm	1	1	0	0	0	0	0	0	0	0	0	1	3
Wind
Wind avgm/s	5.7	5.5	4.0	3.9	3.2	2.8	2.8	3.0	3.6	3.9	4.5	6.4	4.1
Wind gustsm/s	12.9	11.3	9.9	8.0	6.8	6.2	6.2	6.7	6.8	8.2	9.6	11.5	8.7
Sun & UV
Sunshinehrs/day	5.0	6.8	8.0	9.9	10.6	10.2	10.3	9.3	8.3	7.6	6.2	4.7	8.1
Clear skyindex	20%	32%	37%	44%	44%	40%	45%	45%	41%	39%	38%	26%	38%
UV indexmax avg	1.3	1.8	2.9	5.0	6.1	6.6	6.8	7.1	5.6	3.3	1.8	1.0	4.1

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar·Niigata

Niigata offers a solid outdoor season. July through August are the toughest stretch. Dinner outside works 4/12 months, while walking is comfortable 10/12 months — impressive.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

4/12

Dinner Outside

22Jan: 22% viability

23Feb: 23% viability

26Mar: 26% viability

40Apr: 40% viability

74May: 74% viability

88Jun: 88% viability

58Jul: 58% viability

51Aug: 51% viability

75Sep: 75% viability

67Oct: 67% viability

31Nov: 31% viability

22Dec: 22% viability

4/12

Dinner Outside

22Jan: 22% viability

23Feb: 23% viability

26Mar: 26% viability

40Apr: 40% viability

74May: 74% viability

88Jun: 88% viability

58Jul: 58% viability

51Aug: 51% viability

75Sep: 75% viability

67Oct: 67% viability

31Nov: 31% viability

22Dec: 22% viability

48%

Cold

0/12

Lunch Outside

18Jan: 18% viability

26Feb: 26% viability

47Mar: 47% viability

56Apr: 56% viability

59May: 59% viability

55Jun: 55% viability

24Jul: 24% viability

22Aug: 22% viability

37Sep: 37% viability

52Oct: 52% viability

38Nov: 38% viability

17Dec: 17% viability

0/12

Lunch Outside

18Jan: 18% viability

26Feb: 26% viability

47Mar: 47% viability

56Apr: 56% viability

59May: 59% viability

55Jun: 55% viability

24Jul: 24% viability

22Aug: 22% viability

37Sep: 37% viability

52Oct: 52% viability

38Nov: 38% viability

17Dec: 17% viability

38%

Rain

10/12

Walking

70Jan: 70% viability

68Feb: 68% viability

86Mar: 86% viability

90Apr: 90% viability

97May: 97% viability

94Jun: 94% viability

57Jul: 57% viability

33Aug: 33% viability

72Sep: 72% viability

92Oct: 92% viability

80Nov: 80% viability

70Dec: 70% viability

10/12

Walking

70Jan: 70% viability

68Feb: 68% viability

86Mar: 86% viability

90Apr: 90% viability

97May: 97% viability

94Jun: 94% viability

57Jul: 57% viability

33Aug: 33% viability

72Sep: 72% viability

92Oct: 92% viability

80Nov: 80% viability

70Dec: 70% viability

76%

Humid

9/12

Running

70Jan: 70% viability

68Feb: 68% viability

86Mar: 86% viability

90Apr: 90% viability

97May: 97% viability

82Jun: 82% viability

34Jul: 34% viability

15Aug: 15% viability

58Sep: 58% viability

90Oct: 90% viability

80Nov: 80% viability

70Dec: 70% viability

9/12

Running

70Jan: 70% viability

68Feb: 68% viability

86Mar: 86% viability

90Apr: 90% viability

97May: 97% viability

82Jun: 82% viability

34Jul: 34% viability

15Aug: 15% viability

58Sep: 58% viability

90Oct: 90% viability

80Nov: 80% viability

70Dec: 70% viability

70%

Rain

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Niigata · Japan

Climate

Climate Lab·Niigata

Lifestyle Calendar·Niigata

Air Quality Profile

Air Quality Profile

Who thrives in Niigata

Frequently asked about Niigata

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