Avg High
Cambridge in July
Avg Low
Rain
Daylight
16h
What to expect
July in Cambridge is mid-summer, with a settled seasonal pattern already in place. The month is mostly mild for steady exploring, with a noticeable cool-down after sunset. Most days feel close to what the averages suggest, with straightforward pacing. There is plenty of daylight to stretch outdoor time.
July in context
How it compares to the rest of the year in Cambridge.
Hottest (avg)
#1 / 12
Wettest (avg)
#1 / 12
Daylight Hours
#2 / 12
Windiest (avg)
#12 / 12
Highest UV
#2 / 12
Most Humid
#12 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 16.2 h
- UV index (max)
- 7
- Typical sun hours
- 03:58 - 20:10
Rain & Snow
- Total rain
-
- Rainy days
- 15 days
- Cloud cover (avg)
- 64%
Humidity & Wind
- Humidity (avg)
- 72%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for July. Typical high 21.2°C and low 12.7°C.
Typical disruptions in July
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in July.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 12% of days (3.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
3.6 days / month
~12% of days
Why this matters
- Expected days 3.6 days / month
- Probability ~12% of days
- Intensity Up to ~22mm (P95)
Washout conditions are possible on ~4 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 5% of days (1.4 days/month) in July. Historical risk signal only, not a day-by-day forecast.
1.4 days / month
~5% of days
Why this matters
- Expected days 1.4 days / month
- Probability ~5% of days
- Intensity Up to ~79km/h (P95)
Strong gusts are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 2% of days (0.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
~2% of days
Why this matters
- Expected days 0.5 days / month
- Probability ~2% of days
- Intensity Up to ~65km/h (P95)
Stormy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain Moderate
Rain disruption Measures: Likely rain disruption days. Observed about 12% of days (3.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
3.8 days / month
~12% of days
Why this matters
- Expected days 3.8 days / month
- Probability ~12% of days
- Intensity Up to ~21mm (P95)
Rain disruption risk appears on ~4 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Heat Minor
Hot days Measures: Hot days (>=30C). Observed about 2% of days (0.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
~2% of days
Why this matters
- Expected days 0.5 days / month
- Probability ~2% of days
- Intensity Up to ~37°C (P95)
Hot days are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Show all disruptions (16 more)
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 0.6 days/month in July. Historical risk signal only, not a day-by-day forecast.
0.6 days / month
Probability unavailable
Why this matters
- Expected days 0.6 days / month
- Probability —
- Intensity Up to ~23mm (P95)
Multi-day washout runs are possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Moderate
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 5% of days (1.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
~5% of days
Why this matters
- Expected days 1.7 days / month
- Probability ~5% of days
- Intensity Up to ~23mm (P95)
Heavy rain is possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Heat Moderate
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 1% of days (0.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~37°C (P95)
Feels-like heat >=32C is possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 63% of days (19.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
19.5 days / month
~63% of days
Why this matters
- Expected days 19.5 days / month
- Probability ~63% of days
- Intensity Up to ~98% (P95)
Cloudy skies are possible on ~20 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 61% of days (18.9 days/month) in July. Historical risk signal only, not a day-by-day forecast.
18.9 days / month
~61% of days
Why this matters
- Expected days 18.9 days / month
- Probability ~61% of days
- Intensity Up to ~13mm (P95)
Measurable rain is possible on ~19 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 46% of days (14.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
14.3 days / month
~46% of days
Why this matters
- Expected days 14.3 days / month
- Probability ~46% of days
- Intensity Up to ~16h (P95)
Several rainy hours are possible on ~14 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 41% of days (12.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
12.8 days / month
~41% of days
Why this matters
- Expected days 12.8 days / month
- Probability ~41% of days
- Intensity Up to ~64km/h (P95)
Gusty conditions are possible on ~13 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 30% of days (9.4 days/month) in July. Historical risk signal only, not a day-by-day forecast.
9.4 days / month
~30% of days
Why this matters
- Expected days 9.4 days / month
- Probability ~30% of days
- Intensity Up to ~99% (P95)
Mostly cloudy skies are possible on ~9 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 28% of days (8.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
8.8 days / month
~28% of days
Why this matters
- Expected days 8.8 days / month
- Probability ~28% of days
- Intensity Up to ~17h (P95)
Wet-most-of-day conditions are possible on ~9 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 16% of days (5.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
5.0 days / month
~16% of days
Why this matters
- Expected days 5.0 days / month
- Probability ~16% of days
- Intensity Up to ~89% (P95)
High humidity is possible on ~5 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 7% of days (2.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
2.2 days / month
~7% of days
Why this matters
- Expected days 2.2 days / month
- Probability ~7% of days
- Intensity Up to ~100% (P95)
Overcast skies are possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Breezy days Measures: Breezy days (mean wind >=25 km/h). Observed about 2% of days (0.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.6 days / month
~2% of days
Why this matters
- Expected days 0.6 days / month
- Probability ~2% of days
- Intensity Up to ~32km/h (P95)
Breezy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Visibility Minor
Fog-likely signal Measures: Fog-likely visibility proxy. Observed about 1% of days (0.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~94% (P95)
Fog-likely conditions are possible on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Other Minor
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data Measures: Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data. Observed about 1% of days (0.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~94 (P95)
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data is possible on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Humid days Measures: Humid days (dew point >=18C). Observed about 1% of days (0.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~19°C (P95)
Humid conditions are possible on ~0 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Heat Minor
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 0.1 days/month in July. Historical risk signal only, not a day-by-day forecast.
0.1 days / month
Probability unavailable
Why this matters
- Expected days 0.1 days / month
- Probability —
- Intensity Up to ~35°C (P95)
Heatwave runs are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Frequently asked questions
Is July a good time to visit Cambridge?
Typical July days in Cambridge reach highs of 22°C (72°F) with nights around 13°C (55°F). It usually feels mild by day and cool after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in July?
In July, you can usually expect highs of 22°C (72°F) and lows near 13°C (55°F). That means mild days and cool nights, so pack layers you can add or remove.
How much does it rain in July?
Rainfall in July averages 61 mm (2.4 in) across roughly 15 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in July?
You can expect about 16 hours of daylight in July. Sunrise is typically around 03:58 and sunset near 20:10. Very long days give you plenty of daylight for exploring.
How strong is the sun in July?
UV levels are often high (around 7). Regular sunscreen and a hat are recommended.
Is it windy in July?
In July, average wind speeds are around 14 km/h (9 mph), with gusts on the windiest days reaching about 54 km/h (34 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.