How many sunny days does Katsuura have per year?

Katsuura averages approximately 196 sunny days per year, based on historical climate data.

What is the air quality in Katsuura?

Katsuura has an annual PM2.5 concentration of 9.1 µg/m³, classified as "Good" by WHO standards. Within WHO interim target 4. Low health risk for most people.

Chiba

Katsuura · Japan

A city in Japan.

Small city

17K

23m

13:09 UTC+9

JPY

Explore on map →Climate twin →

Katsuura, Japan is a 17K-resident city with 196 sunny days and 0 frost days annually and an annual PM2.5 of 9.1 µg/m³. A city in Japan.

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Climate

Feels-like °C

Dinner outside

Climate Lab·Katsuura

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	12	14	17	20	23	27	30	31	29	24	20	15	22
Daily mean°C	8	9	12	16	20	23	27	29	26	20	16	11	18
Daily low°C	5	5	7	12	17	21	24	26	22	15	12	6	14
Thermal comfort
High feelsDaily high feels-like°C	14	13	18	20	25	30	34	35	32	26	20	16	24
Mean feelsDaily mean feels-like°C	2	1	8	11	17	24	29	32	26	17	11	5	15
Low feelsDaily low feels-like°C	-10	-11	-6	2	10	17	22	26	18	7	2	-8	6
Humidity
HumidityRelative humidity%	60	57	67	63	72	79	82	81	80	76	69	62	71
Dewpoint°C	2.0	1.7	5.3	10.2	15.4	19.1	23.5	24.6	22.6	14.7	10.1	4.5	12.8
Precipitation
Rainfallmm	59	94	210	205	213	242	249	210	221	197	140	59	2098
Rain days≥1mm	9	7	15	13	15	15	15	19	17	16	11	6	158
Wind
Wind avgm/s	3.3	3.5	3.6	4.1	3.7	3.1	3.7	3.7	3.8	3.8	3.5	3.2	3.6
Wind gustsm/s	6.7	8.0	8.3	7.8	7.7	7.9	7.5	6.6	6.8	7.0	7.3	8.0	7.5
Sun & UV
Sunshinehrs/day	7.4	8.4	8.1	9.8	9.3	9.2	10.0	10.0	8.9	7.3	7.4	7.9	8.6
Clear skyindex	48%	57%	47%	44%	36%	31%	37%	54%	40%	42%	53%	66%	46%
UV indexmax avg	2.2	3.2	3.9	5.5	6.4	7.1	7.8	8.5	6.4	3.9	2.8	2.1	5.0

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

Confidence: High

Lifestyle Calendar·Katsuura

Katsuura offers a solid outdoor season. July through August are the toughest stretch. Even dinner outside manages 3/12 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

3/12

Dinner Outside

24Jan: 24% viability

24Feb: 24% viability

27Mar: 27% viability

41Apr: 41% viability

70May: 70% viability

79Jun: 79% viability

56Jul: 56% viability

45Aug: 45% viability

64Sep: 64% viability

73Oct: 73% viability

47Nov: 47% viability

25Dec: 25% viability

3/12

Dinner Outside

24Jan: 24% viability

24Feb: 24% viability

27Mar: 27% viability

41Apr: 41% viability

70May: 70% viability

79Jun: 79% viability

56Jul: 56% viability

45Aug: 45% viability

64Sep: 64% viability

73Oct: 73% viability

47Nov: 47% viability

25Dec: 25% viability

48%

Cold

0/12

Lunch Outside

52Jan: 52% viability

53Feb: 53% viability

53Mar: 53% viability

55Apr: 55% viability

53May: 53% viability

40Jun: 40% viability

20Jul: 20% viability

16Aug: 16% viability

27Sep: 27% viability

55Oct: 55% viability

64Nov: 64% viability

62Dec: 62% viability

0/12

Lunch Outside

52Jan: 52% viability

53Feb: 53% viability

53Mar: 53% viability

55Apr: 55% viability

53May: 53% viability

40Jun: 40% viability

20Jul: 20% viability

16Aug: 16% viability

27Sep: 27% viability

55Oct: 55% viability

64Nov: 64% viability

62Dec: 62% viability

46%

Rain

10/12

Walking

95Jan: 95% viability

90Feb: 90% viability

90Mar: 90% viability

92Apr: 92% viability

93May: 93% viability

90Jun: 90% viability

58Jul: 58% viability

44Aug: 44% viability

79Sep: 79% viability

97Oct: 97% viability

93Nov: 93% viability

95Dec: 95% viability

10/12

Walking

95Jan: 95% viability

90Feb: 90% viability

90Mar: 90% viability

92Apr: 92% viability

93May: 93% viability

90Jun: 90% viability

58Jul: 58% viability

44Aug: 44% viability

79Sep: 79% viability

97Oct: 97% viability

93Nov: 93% viability

95Dec: 95% viability

85%

Humid

9/12

Running

95Jan: 95% viability

90Feb: 90% viability

90Mar: 90% viability

92Apr: 92% viability

92May: 92% viability

83Jun: 83% viability

39Jul: 39% viability

18Aug: 18% viability

61Sep: 61% viability

96Oct: 96% viability

93Nov: 93% viability

95Dec: 95% viability

9/12

Running

95Jan: 95% viability

90Feb: 90% viability

90Mar: 90% viability

92Apr: 92% viability

92May: 92% viability

83Jun: 83% viability

39Jul: 39% viability

18Aug: 18% viability

61Sep: 61% viability

96Oct: 96% viability

93Nov: 93% viability

95Dec: 95% viability

79%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

Katsuura · Japan

Climate

Climate Lab·Katsuura

Lifestyle Calendar·Katsuura

Air Quality Profile

Air Quality Profile

Who thrives in Katsuura

Frequently asked about Katsuura

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