Belfast Weather in July
Average highs run from 18°C on July 1 to 20°C on July 31, and lows from 11°C to 12°C. Normal precipitation for the month is 77 mm over about 19 wet days.
July day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 19°C
- Average low
- 12°C
- Precipitation
- 77 mm
- Record high
- 30°CJul 11, 1983
- Record low
- 6°CJul 10, 1971
- Daylight
- 17 h 11 min to 15 h 53 min
- Cloud cover
- 78%
- Humidity
- 85%
- Dew point
- 12°C
- Wind
- 16.6 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 18°C | 11°C | 24°C 1976 | 7°C 1972 | 61% |
| Jul 2 | 18°C | 11°C | 24°C 1976 | 7°C 1967 | 60% |
| Jul 3 | 19°C | 11°C | 24°C 2018 | 6°C 1990 | 62% |
| Jul 4 | 19°C | 12°C | 24°C 1976 | 6°C 1984 | 63% |
| Jul 5 | 19°C | 11°C | 26°C 2006 | 6°C 1962 | 62% |
| Jul 6 | 19°C | 12°C | 27°C 1977 | 7°C 1968 | 62% |
| Jul 7 | 19°C | 12°C | 27°C 2026 | 7°C 1962 | 62% |
| Jul 8 | 19°C | 12°C | 26°C 1999 | 7°C 1972 | 61% |
| Jul 9 | 19°C | 11°C | 25°C 2025 | 7°C 2015 | 61% |
| Jul 10 | 19°C | 11°C | 25°C 1983 | 6°C 1971 | 60% |
| Jul 11 | 19°C | 12°C | 30°C 1983 | 7°C 1963 | 60% |
| Jul 12 | 19°C | 12°C | 27°C 1983 | 7°C 2012 | 60% |
| Jul 13 | 19°C | 11°C | 25°C 2018 | 6°C 1963 | 60% |
| Jul 14 | 19°C | 11°C | 24°C 1983 | 8°C 1961 | 60% |
| Jul 15 | 20°C | 11°C | 27°C 2003 | 7°C 2015 | 60% |
| Jul 16 | 20°C | 12°C | 29°C 2021 | 6°C 1960 | 59% |
| Jul 17 | 20°C | 12°C | 29°C 2022 | 6°C 1960 | 59% |
| Jul 18 | 20°C | 12°C | 27°C 2006 | 6°C 1971 | 58% |
| Jul 19 | 20°C | 12°C | 28°C 2006 | 6°C 1983 | 58% |
| Jul 20 | 19°C | 13°C | 28°C 2021 | 7°C 1963 | 58% |
| Jul 21 | 20°C | 12°C | 28°C 2021 | 7°C 1978 | 60% |
| Jul 22 | 20°C | 12°C | 26°C 2021 | 6°C 1970 | 60% |
| Jul 23 | 20°C | 13°C | 26°C 1989 | 7°C 1965 | 61% |
| Jul 24 | 20°C | 12°C | 27°C 2014 | 7°C 1986 | 62% |
| Jul 25 | 20°C | 12°C | 25°C 2006 | 6°C 1963 | 63% |
| Jul 26 | 20°C | 12°C | 26°C 2006 | 7°C 1963 | 63% |
| Jul 27 | 19°C | 12°C | 26°C 2026 | 7°C 1966 | 64% |
| Jul 28 | 19°C | 12°C | 24°C 2008 | 8°C 1961 | 64% |
| Jul 29 | 19°C | 12°C | 24°C 1995 | 8°C 1988 | 64% |
| Jul 30 | 19°C | 12°C | 25°C 1999 | 6°C 1965 | 65% |
| Jul 31 | 20°C | 12°C | 24°C 1995 | 7°C 1965 | 64% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- July 1
- sunrise 4:52 AM, sunset 10:03 PM
- July 31
- sunrise 5:33 AM, sunset 9:26 PM
Other months
Sources
Records: NOAA GHCN-Daily, station UKE00105877, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.