How many sunny days does Hagåtña have per year?

Hagåtña averages approximately 278 sunny days per year, based on historical climate data.

What is the air quality in Hagåtña?

Hagåtña has an annual PM2.5 concentration of 3.1 µg/m³, classified as "Excellent" by WHO standards. Meets WHO guideline. Minimal health risk.

Hagatna

Hagåtña · Guam

Name: Hagåtña, Guam
Address: Hagåtña, GU

The capital of Guam.

Photo by yeojin yun on Unsplash

Small city

14:11 UTC+10

USD

Explore on map →Climate twin →

Hagåtña, Guam is a 1,051-resident city with 278 sunny days and 0 frost days annually and an annual PM2.5 of 3.1 µg/m³. The capital of Guam.

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Climate

Feels-like °C

Dinner outside

Climate Lab·Hagåtña

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	28	27	28	28	28	29	29	29	29	29	29	28	28
Daily mean°C	27	27	27	27	28	28	28	28	28	28	28	28	28
Daily low°C	26	26	26	27	27	27	27	27	27	27	27	27	27
Thermal comfort
High feelsDaily high feels-like°C	30	29	30	30	31	31	32	34	34	32	31	31	31
Mean feelsDaily mean feels-like°C	27	27	27	28	29	30	30	30	30	29	29	28	29
Low feelsDaily low feels-like°C	22	22	23	24	25	26	26	26	26	25	25	24	24
Humidity
HumidityRelative humidity%	80	78	80	82	81	81	83	83	82	83	82	80	81
Dewpoint°C	23.2	22.8	23.4	23.9	24.3	24.5	24.6	24.5	24.5	24.4	24.6	24.4	24.1
Precipitation
Rainfallmm	292	30	36	7	5	151	658	490	98	737	190	26	2719
Rain days≥1mm	27	9	13	1	0	24	31	31	22	31	26	7	222
Wind
Wind avgm/s	8.1	9.0	7.6	7.6	6.8	6.5	5.9	4.3	4.8	5.6	7.2	8.5	6.8
Wind gustsm/s	11.6	11.3	10.6	9.7	9.0	8.6	8.2	7.9	8.5	9.2	10.2	11.4	9.7
Sun & UV
Sunshinehrs/day	9.3	9.9	10.2	10.3	10.8	10.7	10.0	9.3	9.6	8.2	9.2	9.3	9.7
Clear skyindex	47%	53%	62%	63%	50%	50%	33%	23%	30%	29%	60%	56%	46%
UV indexmax avg	8.0	9.6	11.5	11.4	11.0	10.6	10.0	10.4	10.5	8.1	8.3	7.5	9.8

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

Confidence: High

Lifestyle Calendar·Hagåtña

Outdoor activities in Hagåtña are challenging most of the year. August through April are the toughest stretch. Running is tough year-round, while even walking manages 3/12 months.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

0/12

Dinner Outside

32Jan: 32% viability

20Feb: 20% viability

41Mar: 41% viability

43Apr: 43% viability

44May: 44% viability

44Jun: 44% viability

40Jul: 40% viability

42Aug: 42% viability

39Sep: 39% viability

40Oct: 40% viability

41Nov: 41% viability

27Dec: 27% viability

0/12

Dinner Outside

32Jan: 32% viability

20Feb: 20% viability

41Mar: 41% viability

43Apr: 43% viability

44May: 44% viability

44Jun: 44% viability

40Jul: 40% viability

42Aug: 42% viability

39Sep: 39% viability

40Oct: 40% viability

41Nov: 41% viability

27Dec: 27% viability

38%

Humid

0/12

Lunch Outside

22Jan: 22% viability

17Feb: 17% viability

35Mar: 35% viability

25Apr: 25% viability

19May: 19% viability

15Jun: 15% viability

10Jul: 10% viability

8Aug: 8% viability

8Sep: 8% viability

7Oct: 7% viability

14Nov: 14% viability

20Dec: 20% viability

0/12

Lunch Outside

22Jan: 22% viability

17Feb: 17% viability

35Mar: 35% viability

25Apr: 25% viability

19May: 19% viability

15Jun: 15% viability

10Jul: 10% viability

8Aug: 8% viability

8Sep: 8% viability

7Oct: 7% viability

14Nov: 14% viability

20Dec: 20% viability

17%

Humid

3/12

Walking

44Jan: 44% viability

31Feb: 31% viability

59Mar: 59% viability

56Apr: 56% viability

72May: 72% viability

78Jun: 78% viability

73Jul: 73% viability

58Aug: 58% viability

54Sep: 54% viability

61Oct: 61% viability

60Nov: 60% viability

42Dec: 42% viability

3/12

Walking

44Jan: 44% viability

31Feb: 31% viability

59Mar: 59% viability

56Apr: 56% viability

72May: 72% viability

78Jun: 78% viability

73Jul: 73% viability

58Aug: 58% viability

54Sep: 54% viability

61Oct: 61% viability

60Nov: 60% viability

42Dec: 42% viability

57%

Humid

0/12

Running

40Jan: 40% viability

29Feb: 29% viability

56Mar: 56% viability

48Apr: 48% viability

61May: 61% viability

52Jun: 52% viability

43Jul: 43% viability

30Aug: 30% viability

25Sep: 25% viability

33Oct: 33% viability

32Nov: 32% viability

32Dec: 32% viability

0/12

Running

40Jan: 40% viability

29Feb: 29% viability

56Mar: 56% viability

48Apr: 48% viability

61May: 61% viability

52Jun: 52% viability

43Jul: 43% viability

30Aug: 30% viability

25Sep: 25% viability

33Oct: 33% viability

32Nov: 32% viability

32Dec: 32% viability

40%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

Hagåtña · Guam

Climate

Climate Lab·Hagåtña

Lifestyle Calendar·Hagåtña

Air Quality Profile

Air Quality Profile

Who thrives in Hagåtña

Frequently asked about Hagåtña