Jiufen weather in July

In July, Jiufen sees average daytime highs of 30°C and overnight lows near 27°C, with 154 mm of rain across 14 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 30 min at the start of July to 13 h 12 min by month's end. Set against the rest of the year, July is Jiufen's 3rd-clearest and 11th-windiest month. For the whole year in context, see Jiufen's year-round climate.

Daytime high
30°
1st warmest
Overnight low
27°
12th coldest
Rainfall
154 mm
14 wet days
Daylight
13 h 24 min
5:16 AM – 6:41 PM
Cloud cover
66%
3rd clearest
Wind
9 km/h
11th windiest
Solar energy
5.9 kWh/m²
Travel score
4.4
out of 10

Jiufen is mountain area in Ruifang District near Keelung, Taiwan.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical July day in Jiufen reaches about 30°C in the afternoon and slips back to 27°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13027
23027
33027
43027
53027
63027
73027
83027
93027
103027
113027
123027
133027
143027
153027
163027
173027
183027
193027
203027
213027
223027
233027
243027
253027
263027
273027
283027
293027
303027
313027

How July really feels in Jiufen

Once humidity and wind are folded in, July averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Jiufen weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 14°17420.110.64.1
Feb18° / 15°16017.711.14.4
Mar20° / 16°1371711.85.1
Apr23° / 19°12815.512.65.7
May26° / 22°18517.613.25.4
Jun29° / 25°16316.313.54.5
Jul30° / 27°1541413.44.4
Aug30° / 27°22317.612.94.2
Sep28° / 25°25717.812.24.9
Oct25° / 22°31319.311.45.3
Nov22° / 20°27819.210.85.1
Dec19° / 16°22719.510.54.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33169
43268
53268
63367
73367
83367
93466
103565
113565
123664
133664
143961
154060
164060
174159
184258
194258
204456
214456
224555
234555
244555
254654
264555
274654
284654
294555
304654
314456

Chance of precipitation in July

Any precipitation

Jiufen gets around 154 mm of rain over 14 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
346
446
546
646
746
846
947
1047
1147
1246
1346
1446
1546
1645
1745
1845
1944
2044
2144
2244
2344
2444
2545
2645
2746
2847
2948
3049
3150

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the miserable band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1892
2892
3892
4892
5991
6991
7991
8991
9991
101090
11991
12991
13991
14991
15991
16991
17991
18991
191090
201090
211090
221090
231189
241189
251288
261288
271387
281387
291486
301486
311486

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 7 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 30 min at the start of July to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:10 AM to 5:23 AM, and sunset from 6:42 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:106:42
213.55:106:42
313.55:106:42
413.55:116:42
513.55:116:42
613.55:116:42
713.55:126:42
813.55:126:42
913.55:136:42
1013.55:136:42
1113.55:136:42
1213.55:146:42
1313.55:146:42
1413.45:156:41
1513.45:156:41
1613.45:166:41
1713.45:166:41
1813.45:166:40
1913.45:176:40
2013.45:176:40
2113.45:186:39
2213.35:186:39
2313.35:196:39
2413.35:196:38
2513.35:206:38
2613.35:206:37
2713.35:216:37
2813.35:216:36
2913.25:226:36
3013.25:226:35
3113.25:236:35

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.9 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.02 kWh/m² to a high of 5.9 kWh/m² in July across the year — July's 5.9 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in July

Hazard calendar for Jiufen

In seasonPeak

In July, Jiufen sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Jiufen sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Jiufen?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.4
Sightseeing
9th-best month of the year
6.1
Beach & pool
1st-best month of the year

July is a reasonable time to visit Jiufen for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Jiufen in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Jiufen sees daytime highs around 30°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Jiufen in July

The nearest coast averages about 28°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 28°C and coldest in January near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Refreshing
May25Warm
Jun27Warm
Jul28Tropical
Aug28Tropical
Sep27Warm
Oct26Warm
Nov24Warm
Dec23Refreshing

UV index in Jiufen in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jiufen peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 13UV 12Dec 22UV 4
UV index (midday)Level
Jan5Moderate
Feb7Very high
Mar9Very high
Apr8Very high
May10Extreme
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct8Very high
Nov7High
Dec4Moderate

Air quality in Jiufen in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Jiufen is worst in April — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (October, 25 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateApr 1052 µg/m³Oct 1626 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb43Poor
Mar51Poor
Apr52Poor
May44Poor
Jun41Poor
Jul32Moderate
Aug32Moderate
Sep30Moderate
Oct25Moderate
Nov32Moderate
Dec32Moderate
Location & terrain

Where is Jiufen?

Jiufen sits at 25.1°N, 121.8°E, 0 m above sea level, in Taiwan. The nearest listed city is Keelung, 11 km away.

NeihuTaipeiSanzhiNew Taipei CityBanqiaoYilan

Topography around Jiufen

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jiufen.

Within 3 km, the terrain around Jiufen has large variations in elevation — a maximum elevation change of 710 m around an average of 221 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 752 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,425 m.

The land around Jiufen is covered by trees (77%) within 3 km, trees (48%) and water (48%) within 16 km, and water (64%) and trees (29%) within 80 km.

3 km
710 m
16 km
752 m
80 km
2,425 m
treescroplandartificial surfaceswater
July weather nearby: Keelung 11 km · Xizhi 19 km · Neihu 26 km · Taipei 33 km · Sanzhi 38 km · New Taipei City 39 km · Banqiao 39 km · Yilan 40 km

Taiwan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
110 / 220 V · 60 Hz
Happiness
6.7 / 10
World Happiness, 2025
Religion
Buddhist 35%Taoist 33%none or unspecified 18%folk religion approximately 10%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Jiufen (25.1096°, 121.8442°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).