How many sunny days does Haiphong have per year?

Haiphong averages approximately 155 sunny days per year, based on historical climate data.

What is the air quality in Haiphong?

Haiphong has an annual PM2.5 concentration of 25.4 µg/m³, classified as "Poor" by WHO standards. Significantly above WHO targets. Increased health risk, especially outdoors.

Haiphong

Haiphong · Vietnam

A city in Vietnam.

Photo by Cathie D on Unsplash

Medium city

922K

221 km²

05:24 UTC+7

VND

Explore on map →Climate twin →

Haiphong, Vietnam is a 922K-resident city with 155 sunny days and 0 frost days annually and an annual PM2.5 of 25.4 µg/m³. A city in Vietnam.

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Climate

Feels-like °C

Dinner outside

Climate Lab · Haiphong

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

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	21	22	25	27	31	33	32	32	31	29	28	23	28
Daily mean°C	19	20	22	25	29	31	30	30	29	25	25	20	25
Daily low°C	14	17	20	23	27	28	28	28	27	22	21	15	22
Thermal comfort
High feelsDaily high feels-like°C	26	27	31	34	38	40	40	40	38	34	33	26	34
Mean feelsDaily mean feels-like°C	18	20	24	28	32	34	35	33	32	23	25	18	27
Low feelsDaily low feels-like°C	7	13	17	22	27	29	29	29	26	16	16	7	20
Humidity
HumidityRelative humidity%	83	84	87	85	83	79	78	81	82	76	75	70	80
Dewpoint°C	16.2	17.3	19.8	22.9	25.5	26.4	26.4	26.0	25.4	20.9	19.4	12.5	21.6
Precipitation
Rainfallmm	27	40	60	93	174	226	273	312	286	90	15	9	1605
Rain days≥1mm	6	10	14	13	18	18	22	26	24	13	5	3	172
Wind
Wind avgm/s	3.7	3.6	3.5	4.0	4.2	4.5	4.0	3.0	2.8	3.7	3.4	3.5	3.7
Wind gustsm/s	6.0	5.8	5.5	5.8	6.2	6.7	6.8	6.2	6.5	6.0	5.9	5.9	6.1
Sun & UV
Sunshinehrs/day	4.0	5.0	7.0	8.3	9.6	9.9	10.0	9.0	7.7	6.0	8.2	7.3	7.7
Clear skyindex	19%	29%	30%	36%	41%	27%	36%	24%	30%	26%	51%	41%	32%
UV indexmax avg	3.7	3.7	3.9	4.4	7.9	8.6	9.0	7.5	7.3	6.8	5.7	3.9	6.0

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

Confidence: High

Lifestyle Calendar · Haiphong

Outdoor living in Haiphong is seasonal. May through September are the toughest stretch. Dinner outside works 5/12 months, while walking works 7/12 months.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

5/12

Dinner Outside

64Jan: 64% viability

74Feb: 74% viability

87Mar: 87% viability

69Apr: 69% viability

45May: 45% viability

37Jun: 37% viability

37Jul: 37% viability

35Aug: 35% viability

37Sep: 37% viability

72Oct: 72% viability

83Nov: 83% viability

57Dec: 57% viability

5/12

Dinner Outside

64Jan: 64% viability

74Feb: 74% viability

87Mar: 87% viability

69Apr: 69% viability

45May: 45% viability

37Jun: 37% viability

37Jul: 37% viability

35Aug: 35% viability

37Sep: 37% viability

72Oct: 72% viability

83Nov: 83% viability

57Dec: 57% viability

58%

Humid

3/12

Lunch Outside

73Jan: 73% viability

67Feb: 67% viability

52Mar: 52% viability

37Apr: 37% viability

13May: 13% viability

7Jun: 7% viability

8Jul: 8% viability

6Aug: 6% viability

8Sep: 8% viability

38Oct: 38% viability

59Nov: 59% viability

86Dec: 86% viability

3/12

Lunch Outside

73Jan: 73% viability

67Feb: 67% viability

52Mar: 52% viability

37Apr: 37% viability

13May: 13% viability

7Jun: 7% viability

8Jul: 8% viability

6Aug: 6% viability

8Sep: 8% viability

38Oct: 38% viability

59Nov: 59% viability

86Dec: 86% viability

38%

Humid

7/12

Walking

99Jan: 99% viability

99Feb: 99% viability

93Mar: 93% viability

76Apr: 76% viability

35May: 35% viability

13Jun: 13% viability

10Jul: 10% viability

20Aug: 20% viability

31Sep: 31% viability

76Oct: 76% viability

92Nov: 92% viability

100Dec: 100% viability

100

7/12

Walking

99Jan: 99% viability

99Feb: 99% viability

93Mar: 93% viability

76Apr: 76% viability

35May: 35% viability

13Jun: 13% viability

10Jul: 10% viability

20Aug: 20% viability

31Sep: 31% viability

76Oct: 76% viability

92Nov: 92% viability

100Dec: 100% viability

100

62%

Humid

4/12

Running

97Jan: 97% viability

91Feb: 91% viability

72Mar: 72% viability

31Apr: 31% viability

8May: 8% viability

1Jun: 1% viability

1Jul: 1% viability

2Aug: 2% viability

8Sep: 8% viability

43Oct: 43% viability

54Nov: 54% viability

96Dec: 96% viability

4/12

Running

97Jan: 97% viability

91Feb: 91% viability

72Mar: 72% viability

31Apr: 31% viability

8May: 8% viability

1Jun: 1% viability

1Jul: 1% viability

2Aug: 2% viability

8Sep: 8% viability

43Oct: 43% viability

54Nov: 54% viability

96Dec: 96% viability

42%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

Climate

Feels-like °C

Dinner outside

Climate Lab · Haiphong

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

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	21	22	25	27	31	33	32	32	31	29	28	23	28
Daily mean°C	19	20	22	25	29	31	30	30	29	25	25	20	25
Daily low°C	14	17	20	23	27	28	28	28	27	22	21	15	22
Thermal comfort
High feelsDaily high feels-like°C	26	27	31	34	38	40	40	40	38	34	33	26	34
Mean feelsDaily mean feels-like°C	18	20	24	28	32	34	35	33	32	23	25	18	27
Low feelsDaily low feels-like°C	7	13	17	22	27	29	29	29	26	16	16	7	20
Humidity
HumidityRelative humidity%	83	84	87	85	83	79	78	81	82	76	75	70	80
Dewpoint°C	16.2	17.3	19.8	22.9	25.5	26.4	26.4	26.0	25.4	20.9	19.4	12.5	21.6
Precipitation
Rainfallmm	27	40	60	93	174	226	273	312	286	90	15	9	1605
Rain days≥1mm	6	10	14	13	18	18	22	26	24	13	5	3	172
Wind
Wind avgm/s	3.7	3.6	3.5	4.0	4.2	4.5	4.0	3.0	2.8	3.7	3.4	3.5	3.7
Wind gustsm/s	6.0	5.8	5.5	5.8	6.2	6.7	6.8	6.2	6.5	6.0	5.9	5.9	6.1
Sun & UV
Sunshinehrs/day	4.0	5.0	7.0	8.3	9.6	9.9	10.0	9.0	7.7	6.0	8.2	7.3	7.7
Clear skyindex	19%	29%	30%	36%	41%	27%	36%	24%	30%	26%	51%	41%	32%
UV indexmax avg	3.7	3.7	3.9	4.4	7.9	8.6	9.0	7.5	7.3	6.8	5.7	3.9	6.0

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

Confidence: High

Lifestyle Calendar · Haiphong

Outdoor living in Haiphong is seasonal. May through September are the toughest stretch. Dinner outside works 5/12 months, while walking works 7/12 months.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

5/12

Dinner Outside

64Jan: 64% viability

74Feb: 74% viability

87Mar: 87% viability

69Apr: 69% viability

45May: 45% viability

37Jun: 37% viability

37Jul: 37% viability

35Aug: 35% viability

37Sep: 37% viability

72Oct: 72% viability

83Nov: 83% viability

57Dec: 57% viability

5/12

Dinner Outside

64Jan: 64% viability

74Feb: 74% viability

87Mar: 87% viability

69Apr: 69% viability

45May: 45% viability

37Jun: 37% viability

37Jul: 37% viability

35Aug: 35% viability

37Sep: 37% viability

72Oct: 72% viability

83Nov: 83% viability

57Dec: 57% viability

58%

Humid

3/12

Lunch Outside

73Jan: 73% viability

67Feb: 67% viability

52Mar: 52% viability

37Apr: 37% viability

13May: 13% viability

7Jun: 7% viability

8Jul: 8% viability

6Aug: 6% viability

8Sep: 8% viability

38Oct: 38% viability

59Nov: 59% viability

86Dec: 86% viability

3/12

Lunch Outside

73Jan: 73% viability

67Feb: 67% viability

52Mar: 52% viability

37Apr: 37% viability

13May: 13% viability

7Jun: 7% viability

8Jul: 8% viability

6Aug: 6% viability

8Sep: 8% viability

38Oct: 38% viability

59Nov: 59% viability

86Dec: 86% viability

38%

Humid

7/12

Walking

99Jan: 99% viability

99Feb: 99% viability

93Mar: 93% viability

76Apr: 76% viability

35May: 35% viability

13Jun: 13% viability

10Jul: 10% viability

20Aug: 20% viability

31Sep: 31% viability

76Oct: 76% viability

92Nov: 92% viability

100Dec: 100% viability

100

7/12

Walking

99Jan: 99% viability

99Feb: 99% viability

93Mar: 93% viability

76Apr: 76% viability

35May: 35% viability

13Jun: 13% viability

10Jul: 10% viability

20Aug: 20% viability

31Sep: 31% viability

76Oct: 76% viability

92Nov: 92% viability

100Dec: 100% viability

100

62%

Humid

4/12

Running

97Jan: 97% viability

91Feb: 91% viability

72Mar: 72% viability

31Apr: 31% viability

8May: 8% viability

1Jun: 1% viability

1Jul: 1% viability

2Aug: 2% viability

8Sep: 8% viability

43Oct: 43% viability

54Nov: 54% viability

96Dec: 96% viability

4/12

Running

97Jan: 97% viability

91Feb: 91% viability

72Mar: 72% viability

31Apr: 31% viability

8May: 8% viability

1Jun: 1% viability

1Jul: 1% viability

2Aug: 2% viability

8Sep: 8% viability

43Oct: 43% viability

54Nov: 54% viability

96Dec: 96% viability

42%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

Haiphong · Vietnam

Climate

Climate Lab · Haiphong

Lifestyle Calendar · Haiphong

Climate

Climate Lab · Haiphong

Lifestyle Calendar · Haiphong

Air Quality Profile

Air Quality Profile

Who thrives in Haiphong

Things to consider in Haiphong

Why not Haiphong?

Frequently asked about Haiphong

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